Vol 44 # 4 December 2012 - Kma.org.kw
Vol 44 # 4 December 2012 - Kma.org.kw
Vol 44 # 4 December 2012 - Kma.org.kw
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VOLUME <strong>44</strong> NUMBER 4<br />
KMJ<br />
KUWAIT MEDICAL JOURNAL<br />
DECEMBER <strong>2012</strong><br />
The Official Journal of The Kuwait Medical Association<br />
EDITORIAL<br />
Bariatric Surgery and Hypoglycemia 274<br />
Bijan Ahrari, Samuel Dagogo-Jack<br />
REVIEW ARTICLE<br />
Asthma During Pregnancy: An Immunologic Perspective 277<br />
Fawaz Azizieh, Raj Raghupathy<br />
ORIGINAL ARTICLES<br />
Intravenous Labetalol versus Oral Nifedipine in the Treatment of Severe Hypertension in Pregnancy 287<br />
Ronita Devi Mayanglambam, Tempe Anjali<br />
Total Hip Replacement in Nigeria: A Preliminary Report 291<br />
Nwadinigwe Cajetan Uwatoronye, Anyaehie Udo Ego, Katchy Uchenna Amaechi<br />
Towards Prevention of Diabetes in Offsprings of Type 2 Diabetic Patients 297<br />
Amal I El-Sharakawy, Abdulrahman A Abdulla, Fatimah Bendhifari<br />
Stereotactic Surgery: Diagnostic and Therapeutic Role in the Management of Brain Disorders and Our Experience<br />
at Ibn Sina Hospital 303<br />
Hasan Khajah, Aftab Khan, Yousaf Al Awadi, Abbas Ramadan<br />
Synergy between Dendritic Cell-Based Vaccine and Anti-CD137 Monoclonal Antibody in the Treatment of Mouse<br />
Renal Cell Carcinoma 308<br />
Si-Ming Wei, Zhi-Zhong Yan, Jian Zhou<br />
The Effect of Gene Polymorphisms (ENOS G894T, PON1 and Catalase -262C→T) on Fertility and Sperm Parameters<br />
in Turkish Men with Clinical Varicocele: A Pilot Study 316<br />
Cavit Ceylan, Gulay G Ceylan, Hakan Artas, Erdogan Aglamıs, Can Ates, Huseyin Yuce<br />
INSIGHT<br />
Ward Mechanical Ventilation (WMV) Audit 322<br />
Sulaiman Khadadah, Maryam Al-Ali, Mohamed Bahzad<br />
CASE REPORTS<br />
Unusual Presentation of Duplex Collecting System: A Case Report 326<br />
Mukesh Kumar Vijay, Preeti Vijay, Pramod Kumar Sharma<br />
Double Appendix: Report of a Case 329<br />
Naorem Gopendro Singh, Hisham Kantoush, Mirza Kahvic<br />
Oncocytic and Clear Cell Areas in a Solid Pseudopapillary Tumor of the Pancreas: A Case Report 332<br />
Anuradha C K Rao, Manna Valiathan, Padmapriya Jaiprakash<br />
Celiac Disease as Uncommon Cause of Death in Type 1 Diabetes Mellitus: A Case Study 335<br />
Yasser Mohamed Abd Elraouf Ibrahim<br />
Squamous Cell Carcinoma of the Penis: Magnetic Resonance Imaging Findings 338<br />
Ibrahim Hamed, Hasan Almutairi, Muneera Al-Adwani<br />
Unstable Carpometacarpal Dislocation of Ulnar Four Fingers – An Easily Overlooked Injury 341<br />
Kumar Ashok, Singh Pritish, Badole Chandrashekhar<br />
Prostatic Adenocarcinoma and Chronic Lymphocytic Leukemia: A Case Report 3<strong>44</strong><br />
Abdul-Razzaq A Wraikat, Tariq N Aladily<br />
KU ISSN 0023-5776<br />
Continued inside
<strong>Vol</strong>. <strong>44</strong> No. 4<br />
C O N T E N T S<br />
DECEMBER <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL<br />
Continued from cover<br />
LETTER TO THE EDITOR<br />
Individual Cyclooxygenase-2 Inhibitors on the Risk of Peptic Ulcer Disease: A Population-Based Cohort in Taiwan 347<br />
Shih-Wei Lai, Kuan-Fu Liao, Hsueh-Chou Lai, Chih-Hsin Muo, Fung-Chang Sung, Pei-Chun Chen<br />
SELECTED ABSTRACTS OF ARTICLES PUBLISHED ELSEWHERE BY<br />
AUTHORS IN KUWAIT 349<br />
FORTHCOMING CONFERENCES AND MEETINGS 353<br />
WHO-FACTS SHEET 362<br />
1. Diabetes<br />
2. Epilepsy<br />
3. Maternal Mortality<br />
4. Diarrheal Disease<br />
YEARLY TITLE INDEX 368<br />
YEARLY AUTHOR INDEX 370<br />
❈ ❈ ❈<br />
Open access for articles at: www.kma.<strong>org</strong>.<strong>kw</strong>/KMJ<br />
Indexed and abstracted in:<br />
EMBASE (The Excerpta Medica Database)<br />
Science Citation Index Expanded (also known as SciSearch®)<br />
Journal Citation Reports/Science Edition<br />
IMEMR Current Contents (Index Medicus for the Eastern Mediterranean Region;<br />
available online at: www.emro.who.int/EMRJorList/online.aspx<br />
THE PUBLICATION OF ADVERTISEMENTS IN THE KUWAIT MEDICAL JOURNAL DOES NOT CONSTITUTE ANY GUARANTEE OR ENDORSEMENT BY THE KUWAIT<br />
MEDICAL ASSOCIATION OR THE EDITORIAL BOARD OF THIS JOURNAL, OF THE ADVERTISED PRODUCTS, SERVICES, OR CLAIMS MADE BY THE ADVERTISERS.<br />
THE PUBLICATION OF ARTICLES AND OTHER EDITORIAL MATERIAL IN THE JOURNAL DOES NOT NECESSARILY REPRESENT POLICY RECOMMENDATIONS OR<br />
ENDORSEMENT BY THE ASSOCIATION.<br />
PUBLISHER: The Kuwait Medical Journal (KU ISSN-0023-5776) is a quarterly publication of THE KUWAIT MEDICAL ASSOCIATION.<br />
Address: P.O. Box 1202, 13013 Safat, State of Kuwait; Telephone: 1881181 Fax: 25317972, 25333276. E-mail : kmj@kma.<strong>org</strong>.<strong>kw</strong><br />
COPYRIGHT: The Kuwait Medical Journal. All rights reserved. No part of this publication may be reproduced without written<br />
permission from the publisher. Printed in Kuwait.<br />
INSTRUCTIONS FOR AUTHORS: Authors may submit manuscripts prepared in accordance with the Uniform Requirements for<br />
Manuscripts Submitted to Biomedical Journals. These Requirements are published in each issue of the Kuwait Medical Journal.<br />
CHANGE OF ADDRESS: Notice should be sent to the Publisher six weeks in advance of the effective date. Include old and new<br />
addresses with mail codes.<br />
KUWAIT MEDICAL JOURNAL (previously The Journal of the Kuwait Medical Association) is added to the list of journals adhering to<br />
the “Uniform Requirements for Manuscripts Submitted to Biomedical Journals”, American College of Physicians, Independence Mall<br />
West, Sixth Street at Race, Philadelphia, PA 19106-1572, USA, and can be located at http://www.icmje.<strong>org</strong>/jrnlist.html
Kuwait Medical Journal (KMJ)<br />
Published by the Kuwait Medical Association<br />
Previously known as The Journal of the Kuwait Medical Association (Est. 1967)<br />
Honorary President: Abdulaziz Al-Babtain<br />
Ananda S Prasad, USA<br />
Anders Lindstrand, Sweden<br />
Andrew J Rees, UK<br />
Belle M Hegde, India<br />
Bengt Jeppsson, Sweden<br />
Charles A Dinarello, USA<br />
Christian Imielinski, Poland<br />
Elizabeth Dean, Canada<br />
Fiona J Gilbert, UK<br />
Frank D Johnston, UK<br />
Ge<strong>org</strong>e Russell, UK<br />
Graeme RD Catto, UK<br />
EDITORIAL BOARD<br />
Editor-in-Chief:<br />
Editor:<br />
International Editor:<br />
Associate Editors:<br />
Fuad Abdulla M Hasan, Kuwait<br />
Adel Khader Ayed, Kuwait<br />
Pawan K Singal, Canada<br />
Adel A Alzayed, Kuwait<br />
Ignacio Rodriguez, USA<br />
Michael Redmond, USA<br />
Mousa Khoursheed, Kuwait<br />
Mustafa M Ridha, Kuwait<br />
Nasser Behbehani, Kuwait<br />
Noura Al-Sweih, Kuwait<br />
INTERNATIONAL ADVISORY BOARD<br />
Giuseppe Botta, Italy<br />
James W Roach, USA<br />
Jan T Christenson, Switzerland<br />
Jasbir S Bajaj, India<br />
John V Forester, UK<br />
Julian Little, Canada<br />
Kostadin L Karagiozov, Japan<br />
Lewis D Ritchie, UK<br />
Mechael M Meguid, USA<br />
Mohammed Zayer, Sweden<br />
Neva E Haites, UK<br />
Nirmal K Ganguli, India<br />
Oleg Eremin, UK<br />
Peter RF Bell, UK<br />
Philip M Moody, USA<br />
Raymond M Kirk, UK<br />
Samuel Dagogo-Jack, USA<br />
S Muralidharan, India<br />
Stig Bengmark, Sweden<br />
Tulsi D Chugh, India<br />
William A Tweed, Canada<br />
William B Greenough, USA<br />
Zoheir Bshouty, Canada<br />
Abdulla Behbehani<br />
Abeer K Al-Baho<br />
Alexander E Omu<br />
Ali Al-Mukaimi<br />
Ali Al-Sayegh<br />
Asmahan Al-Shubaili<br />
Chacko Mathew<br />
Eiman M Mokaddas<br />
Faisal A Al-Kandari<br />
REGIONAL ADVISORY BOARD<br />
Habib Abul<br />
John F Greally<br />
Joseph C Longenecker<br />
Kamal Al-Shoumer<br />
Kefaya AM Abdulmalek<br />
Khalid Al-Jarallah<br />
Mazen Al Essa<br />
Mohamed AA Moussa<br />
Mousa Khadadah<br />
Mustafa Al-Mousawi<br />
Nasser J Hayat<br />
Nawaf Al-Mutairi<br />
Nebojsa Rajacic<br />
Sami Asfar<br />
Soad Al-Bahar<br />
Sukhbir Singh Uppal<br />
Waleed Alazmi<br />
Waleed A Aldhahi<br />
EDITORIAL OFFICE<br />
Editorial Manager : Babichan K Chandy<br />
Language Editor : Abhay U Patwari<br />
EDITORIAL ADDRESS<br />
P.O. Box: 1202, 13013-Safat, Kuwait<br />
Telephone: (00-965) 1881181(Ext. 201) - Fax: (00-965) 25317972, 25333276<br />
E-mail: kmj@kma.<strong>org</strong>.<strong>kw</strong><br />
Website: www.kma.<strong>org</strong>.<strong>kw</strong>/KMJ
KUWAIT MEDICAL JOURNAL<br />
KUWAIT MEDICAL JOURNAL (KMJ)<br />
Instructions for Authors<br />
INTRODUCTION<br />
Formerly known as ‘The Journal of the Kuwait<br />
Medical Association’, the Kuwait Medical Journal<br />
(KMJ) was established in the year 1967. It is the official<br />
publication of the Kuwait Medical Association and<br />
published quarterly and regularly in March, June,<br />
September and <strong>December</strong>.<br />
AIMS AND SCOPE<br />
KMJ aims to publish peer-reviewed manuscripts of<br />
international interest. Submissions on clinical, scientific<br />
or laboratory investigations of relevance to medicine and<br />
health science come within the scope of its publication.<br />
Original articles, case reports, brief communications,<br />
book reviews, insights and letters to the editor are<br />
all considered. Review articles are solicited. Basic<br />
medical science articles are published under the section<br />
‘Experimental Medicine’.<br />
GENERAL<br />
The Kuwait Medical Journal is a signatory journal to<br />
the Uniform Requirements for Manuscripts Submitted<br />
to Biomedical Journals, the fifth (1997) revision of a<br />
document by the international Committee of Medical<br />
Journal Editors. A description of important features<br />
of this document is available on the Lancet website at<br />
http://www.thelancet.com. Alternatively, you may<br />
consult the following: N Engl J Med 1997; 336:307-315 or<br />
order the leaflet “Uniform Requirements for Manuscripts<br />
Submitted to Biomdical Journals” by writing to the<br />
Editor of the British Medical Journal (BMJ), BMA House,<br />
Tavistock Square, London WC1H 9JR, UK.<br />
To present your original work for consideration,<br />
one complete set of the manuscript, written in English<br />
(only), accompanied by tables, and one set of figures<br />
(if applicable), should be submitted to the Editor.<br />
Authors should also provide the manuscript on an IBM<br />
compatible medium such as floppy, CD (in MS word<br />
format) or pen-drive, if not submitted through e-mail.<br />
The KMJ editorial office uses Microsoft ‘Office 2007’<br />
word processing and ‘Excel’ programs. Details of the<br />
type of computer used, the software employed and the<br />
disk system, if known, would be appreciated.<br />
ELECTRONIC SUBMISSIONS<br />
A manuscript could be submitted through e-mail<br />
as an attached word-document (.doc), together with<br />
a scanned copy of the signed consent letter of the<br />
author(s). The consent letter could otherwise be faxed<br />
to the journal office at (00965) 25317972 or 25333276.<br />
Figures/photographs, photomicrogrphs etc, if any, need<br />
to be in .jpg/.jpeg/.bmp format with 300 dpi resolution<br />
and illustrations such as drawings, charts etc., as Excel<br />
files. All the figures including illustrations should be<br />
saved as Fig. 1, Fig. 2, etc in running sequence and<br />
submitted as seperate attachments along with the<br />
manuscript. Incomplete/improper submissions will not<br />
be processed, and will be returned.<br />
Following a peer review process, the corresponding<br />
author will be advised of the status; acceptance/<br />
recommendation for revision or rejection of the paper, in<br />
a formal letter sent through post and/or e-mail. A galley<br />
proof will be forwarded to the corresponding author<br />
through e-mail before publication of the accepted papers<br />
which must be returned to the journal office within 48<br />
hours with specific comments, if any. Corrections in the<br />
galley proof, in case any, must be limited to typographical<br />
errors, or missing contents only.<br />
ETHICAL CONSIDERATIONS<br />
Where human investigations or animal experiments<br />
are part of the study, the design of the work has to<br />
be approved by local ethics committee. A relevant<br />
statement of approval should be added in the ‘Subjects<br />
and Methods’ section of the manuscript.<br />
PREPARATION OF THE MANUSCRIPT<br />
The manuscript should be typed as ‘normal text’ in<br />
single column, with no hyphenation and no hard returns<br />
within paragraphs (use automatic word wrap) on A4 size<br />
(29.7 x 21 cm) paper in single column format, preferably<br />
in font size no.12. Cell format for paragraphs, artwork<br />
and/or special effects for the text and/or table(s) are<br />
not acceptable. Italics shall be used only for foreign/<br />
Latin expressions and/or special terminologies such as<br />
names of micro <strong>org</strong>anisms. Maintain a minimum of 2 cm<br />
margin on both sides of the text and a 3 cm margin at the<br />
top and bottom of each page. No part of the text other<br />
than abbreviations and/or subtitles shall be written in<br />
upper case (ALL capital). Header/foot notes, end notes,<br />
lines drawn to separate the paragraphs or pages etc. are<br />
not acceptable. Do not submit articles written/saved in<br />
‘Track-change’ mode<br />
THE ORDER OF THE TEXT<br />
Original Articles: Title page, Abstract (in structured<br />
format for original articles) of no more than 250 words,<br />
Key Words (no more than five), followed by Introduction,<br />
Subjects (or Materials) and methods, Results, Discussion,<br />
Conclusion, Acknowledgment/s (if any), References,<br />
Legends to figures, Tables, and Figures. Each section<br />
should begin on a new page.<br />
Review Articles (solicited): Title Page, Abstract of<br />
no more than 250 words, Key Words (no more than<br />
five), followed by Introduction, Methods/History<br />
i
Instructions for Authors<br />
(if applicable), Literature Review, Conclusion,<br />
Acknowledgment/s (if any), References, Legends to<br />
figures (if applicable), Tables, and Figures. Each section<br />
should begin on a new page.<br />
Case Studies: Title page followed by Abstract (a<br />
short summary of not more than 200 words), Key<br />
Words, Introduction, Case history/report, Discussion,<br />
Conclusion, Acknowledgment/s (if any), References,<br />
Legends to figures (if applicable), Tables, and Figures.<br />
Manuscript should not be paginated Manually,<br />
instead to use 'insert page number' to the document<br />
commencing the title page. Main headings,<br />
introduction, subjects and methods, etc., should be<br />
placed on separate lines.<br />
THE TITLE PAGE<br />
Title page of the submitted manuscript should<br />
provide a clear title of the study followed by full<br />
names of all authors, the highest academic degree<br />
and affiliations if any, the name and address of the<br />
institution/s where the work was done including<br />
the department, the name and complete address<br />
of the corresponding author to whom proofs and<br />
correspondences shall be sent, duly supported with<br />
contacts such as telephone, mobile/cell, fax and e-<br />
mail address.<br />
STRUCTURED ABSTRACT<br />
A structured abstract of no more than 250 words<br />
is required for studies under the section “Original<br />
Articles”. It must provide an overview of the entire<br />
paper, and should contain succinct statements on<br />
the following, where appropriate: Objective(s),<br />
Design, Setting, Subjects, Intervention(s), Main<br />
Outcome Measure(s), Result(s), and Conclusion(s).<br />
(See: Haynes RB, Mulrow CD, Huth AJ, Altman DG,<br />
Gardner MJ. More informative abstracts revisited.<br />
Annals of Internal Medicine 1990; 113:69-76). Abstract<br />
for all other category of submissions shall be a short<br />
summary not more than 200 words followed by Key<br />
words and the report or review.<br />
KEY WORDS<br />
Key Words should be preferably MeSH terms, and<br />
shall not duplicate words already in the manuscript<br />
title; MesH terms can be checked at: .<br />
TABLES<br />
Tables typed on separate pages using table format<br />
should follow the list of references. All tables must be<br />
numbered consecutively and provided with appropriate<br />
titles. Contents of the table should be simple, and<br />
information therein not duplicated, but duly referred<br />
to, in the main text. Tables recording only a few values<br />
are not appreciated, since such information can be<br />
more accurately, usefully and concisely presented as a<br />
sentence or two in the text.<br />
DESIGN OF THE WORK<br />
This should be stated clearly. The rationale behind<br />
the choice of sample size should be given. Those about<br />
to begin randomized controlled studies may wish to<br />
study the CONSORT statement (JAMA 1996; 276:637-<br />
639).<br />
ILLUSTRATIONS<br />
Photographs, Photomicrographs, line drawings,<br />
transparencies, etc. must be of high quality and supplied<br />
in original (not photocopies or laser prints) of size 10 x<br />
15 cm (4” x 6”). Regarding scanned image requirements,<br />
see ‘Electronic Submissions’. Photographs should fit<br />
within a print area of 164 x 235 mm. All the figures must<br />
be numbered serially (Fig 1, Fig 2 etc.) and the figure<br />
number written on the back side of each (in case of hard<br />
copy submission) and an arrow drawn to indicate the top<br />
edge. Figures where patient’s identity is not concealed,<br />
authors need to submit a written consent of the patient<br />
or of the patient’s guardian, in case of minors. Figure<br />
legends/titles should be listed separately after the<br />
‘References’ section. If any of the tables, illustrations<br />
or photomicrographs have been published elsewhere<br />
previously, a written consent for re-production is required<br />
from the copyright holder along with the manuscript.<br />
Charts and drawings must be professionally done, duly<br />
titled and submitted in Excel format as separate files.<br />
When charts are submitted, the numerical data on which<br />
they were based should be supplied.<br />
ABBREVIATIONS<br />
Except for units of measurement, abbreviations<br />
should be defined on first use and then applied<br />
consistently throughout the article. Non-standard<br />
abbreviations or those appearing fewer than three times<br />
are not accepted. Use abbreviated units of measure,<br />
only when used with numbers. Abbreviations used as<br />
legends in tables and/or figures should be duly defined<br />
below the respective item.<br />
NUMBERS AND UNITS<br />
Measurements of length, height, weight and<br />
volume must be reported in metric units (meter,<br />
kilogram, liter etc.) or their decimal multiples.<br />
Temperature should be given in degrees Celsius.<br />
Blood pressure in mm Hg, and hematological and<br />
biochemical measurements in Système International<br />
(SI) units. For decimal values, use a point, and not a<br />
comma, e.g., 5.7. Use a comma for numbers > 10,000<br />
(i.e., 10 3 ) and for numbers < 9999, do not use a comma<br />
(e.g., 6542).<br />
DRUG NAMES<br />
Non-proprietary (generic) names of product<br />
should be employed. If a brand name for a drug is<br />
used, the British or international non-proprietary<br />
(approved) name should be given in parentheses. The<br />
source of any new or experimental preparation should<br />
also be given.<br />
ii
KUWAIT MEDICAL JOURNAL<br />
REFERENCES<br />
Indicate references in the text in sequence using<br />
Arabic numerals within square brackets and as<br />
superscripts (e.g., [1, 3-5] etc). Do not quote additional<br />
data (like part of the title, year of publication etc.)<br />
from the references with citations in the text, unless<br />
very important. In the References section, list them<br />
in the same sequence as they appeared in the text.<br />
Include the names and initials of all authors if not<br />
more than six (≤ 6); when authorship exceeds six, use<br />
et al after three author names. Do not use automatic<br />
numbering, end notes or footnotes for references.<br />
References to manuscripts either in preparation or<br />
submitted for publication, personal communications,<br />
unpublished data, etc. are not acceptable.<br />
The author’s name should be followed by the title<br />
of the article, the title of the journal abbreviated in the<br />
style of the Index Medicus, the year of publication, the<br />
volume number and the first and last page numbers.<br />
References to books should give the title of the book,<br />
followed by the place of publication, the publisher, the<br />
year and the relevant pages. Journal titles should be<br />
abbreviated according to the style in Index Medicus.<br />
References should be limited to those relating directly<br />
to the contents of the paper and should be set out in<br />
Vancouver style, as shown in the examples below.<br />
EXAMPLES<br />
Article<br />
Burrows B, Lebowitz MD. The ß agonists dilemma<br />
(editorial). N Engl J Med 1992; 326:560-561.<br />
Book<br />
Roberts NK. The cardiac conducting system and<br />
His bundle electrogram. New York, Appleton-Century-<br />
Crofts, 1981; 49-56.<br />
Book chapter<br />
Philips SJ, Whisnam JP. Hypertension and stroke,<br />
In: Laragh JH, Bremner BM, editors. Hypertension:<br />
pathophysiology, diagnosis, and management. 2 nd Ed.<br />
New York: Raven Press; 1995. p 465-478.<br />
Weblinks<br />
U.S. positions on selected issues at the third<br />
negotiating session of the Framework Convention on<br />
Tobacco Control. Washington, D.C.: Committee on<br />
Government Reform, 2002. (Accessed June 4, 2003, at<br />
http://www.house.gov/reform/min/inves.tobacco/<br />
index_accord.htm.)<br />
AUTHORSHIP AND CONSENT FORM<br />
All authors must give their signed consent for<br />
publication in a letter of submission, which should<br />
accompany the manuscript. This letter should contain<br />
the statement that “This manuscript (write the title)<br />
is an unpublished work which is not under consideration<br />
elsewhere and the results contained in this paper have<br />
not been published previously in whole or part, except in<br />
abstract form. In consideration of the KMJ accepting my/our<br />
submission for publication, the author(s) undersigned hereby<br />
assign all copyrights ownership to the KMJ and shall have<br />
no right to withdraw its publication. It is expressly certified<br />
that I/we, have done/actively participated in this study and<br />
agree to the accuracy of contents of this manuscript. It was<br />
conducted in accordance with current ethical considerations<br />
and meets with the committee’s approval. I/all of us agree to<br />
its publication in KMJ and to the authorship as expressed in<br />
this declaration and in the title page of our manuscript”. The<br />
participation of the authors must include: conception,<br />
design, analysis, interpretation, or drafting the article<br />
for critically important intellectual content. A change<br />
in authorship after initial submission of a manuscript<br />
should be duly supported with a documented request<br />
from the main author, duly endorsed by the author<br />
removed and/or-added. No changes in authorship<br />
will be permitted after acceptance for publication of a<br />
manuscript.<br />
More than six authors are not appreciated for an<br />
article and if listed, the authors may be asked to justify<br />
the contribution of each individual author. For case<br />
reports, not more than three authors are acceptable.<br />
Regarding contributions of authors over the limit<br />
mentioned above, read the ‘Acknowledgment’<br />
section.<br />
ACKNOWLEDGMENT<br />
The objective of this section is to disclose affiliations<br />
with or association of any <strong>org</strong>anization with a direct<br />
financial interest in the study. Otherwise, it will be<br />
considered as having no such interests. Contributions<br />
of others who have involved in the study, such as<br />
statisticians, radiologists etc. and/or those who have<br />
assisted in the preparation of the manuscript submitted<br />
could also be included in this section.<br />
COPY RIGHT<br />
The publisher reserves copyright on the Journal’s<br />
contents. No part may be reproduced, translated or<br />
transmitted in any form by any means, electronic<br />
or mechanical, including scanning, photocopying,<br />
recording or any other information storage and retrieval<br />
system without prior permission from the publisher.<br />
The publisher shall not be held responsible for any<br />
inaccuracy of the information contained therein.<br />
SUBMISSION OF A MANUSCRIPT<br />
Manuscripts to be submitted to:<br />
The Editor<br />
Kuwait Medical Journal<br />
P.O. Box: 1202<br />
Code-13013-Safat<br />
Kuwait<br />
Telephone (965) 1881181(Ext. 201)<br />
Fax (965) 25317972; 25333276<br />
E-mail: kmj@kma.<strong>org</strong>.<strong>kw</strong><br />
Website: www.kma.<strong>org</strong>.<strong>kw</strong>/KMJ<br />
iii
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 274<br />
Editorial<br />
Bariatric Surgery and Hypoglycemia<br />
Bijan Ahrari, Samuel Dagogo-Jack<br />
Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science<br />
Center, Memphis, Tennessee, USA<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 274 - 276<br />
Obesity is a major public health problem in the<br />
developed and developing regions of the world.<br />
Using a body mass index (weight in kg divided by<br />
height in meter squared) of 30 kg/m 2 or greater as the<br />
cut-off, recent estimates indicate that 36% of adults<br />
in the United States are obese [1] . The prevalence of<br />
severe or morbid obesity defined as BMI greater<br />
than 40 kg/m 2 is rising twice as fast as that of obesity<br />
and is currently close to 6% of US adult population.<br />
Obesity is associated with increased risk of morbidity<br />
and mortality from cardiovascular disease, diabetes,<br />
respiratory diseases, musculoskeletal disorders and<br />
neoplastic diseases, among others [2] . Management of<br />
obesity continues to be challenging, and traditional<br />
options based on dietary and lifestyle modifications<br />
seldom result in sustained weight loss. Compared<br />
with the proliferation of agents for diabetes therapy,<br />
the pace of drug development for obesity has been<br />
markedly slower. Moreover, the available agents are<br />
of limited efficacy [3] , especially with regard to making<br />
an impact on morbid obesity.<br />
Superficial interventions such as liposuction<br />
and removal of subcutaneous abdominal adipose<br />
tissue do not alter cardio-metabolic risks [4] . By<br />
contrast, gastric bypass surgery offers long-term<br />
weight loss associated with significant reduction<br />
of comorbidities associated with morbid obesity [5] .<br />
Complete resolution of diabetes occurs in 80% of<br />
patients while an additional number of patients see<br />
significant improvement in diabetes [6,7] . This happens<br />
through both weight-dependent as well as weightindependent<br />
mechanisms including alteration in<br />
bile flow, reduction of gastric size, anatomical gut<br />
rearrangement, vagal manipulation, and alterations<br />
in enteric hormones [6] . In addition, hyperlipidemia,<br />
hypertension and obstructive sleep apnea improve in<br />
70%, 62% and 84% of patients respectively [8] . A large<br />
cohort study showed a 40% reduction in mortality<br />
from all causes associated with bariatric surgery [9] .<br />
Unfortunately, the cosmetic and cardio-metabolic<br />
benefits of bariatric surgery are achieved at a price of<br />
significant post-operative morbidity and sometimes<br />
mortality. However, the outcomes of bariatric surgery<br />
are generally improving over time with the use of more<br />
advanced surgical procedures, more careful selection<br />
of surgical candidates, and the use of specialized<br />
surgery centers. The overall 30-day mortality<br />
for bariatric surgical procedures is less than one<br />
percent [8] . Some of the more common complications of<br />
bariatric surgery include ventral and internal hernias,<br />
metabolic and nutritional derangements, marginal<br />
ulcers, short bowel syndrome, dumping syndrome<br />
and cholelithiasis [10] .<br />
An uncommon but potentially serious adverse effect<br />
of bariatric surgery is recurrent severe hypoglycemia.<br />
As is well-known, hypoglycemia is rare among nondiabetic<br />
persons [11] . Although mild asymptomatic<br />
hypoglycemia can be as seen in up to 50% of postbypass<br />
patients, severe hypoglycemia accompanied by<br />
neuroglycopenic symptoms occurs in less than 1% of<br />
bariatric surgery patients [6,12] . The presentation of mild<br />
episodes of hypoglycemia is similar to that of the late<br />
phase of dumping syndrome and usually responds to<br />
dietary modifications [5] . Although much less frequent,<br />
episodes of severe hypoglycemia can have dramatic<br />
clinical presentations, including confusion, seizure<br />
and coma. Impaired cognitive function, altered<br />
neuromuscular reflexes, and diminished capacity for<br />
judgment resulting from neuroglycopenia can lead<br />
to automobile accidents and machinery injuries. In<br />
a nationwide Swedish case-control study (one case<br />
for every 10 matched population control subjects)<br />
of persons who had undergone gastric bypass (n =<br />
5,040), vertical banded gastroplasty (n = 4,366), or<br />
Address correspondence to:<br />
Samuel Dagogo-Jack, MD, University of Tennessee Health Science Center, 920 Madison Avenue, Suite 300A, Memphis, TN 38163, USA. Tel:<br />
901-<strong>44</strong>8-5318, Fax: 901-<strong>44</strong>8-5332, E-mail: sdj@uthsc.edu
275 Bariatric Surgery and Hypoglycemia<br />
<strong>December</strong> <strong>2012</strong><br />
gastric banding (n = 2,917) for obesity, the relative<br />
risk of severe hypoglycemia was five-fold higher in<br />
the gastric bypass patients compared with controls [12] .<br />
However, it is noteworthy (and reassuring) that the<br />
absolute rate of post-bariatric hypoglycemia was<br />
low (< 1%). Furthermore, the Roux-en-Y gastric<br />
bypass procedure was more frequently associated<br />
with hypoglycemia than other forms of bariatric<br />
surgery, including vertical banding gastroplasty and<br />
gastric banding [12] . The median time from surgery to<br />
hypoglycemic symptoms in the Swedish survey was<br />
2.7 years, consistent with the post-operative latency<br />
of 1 - 5 years reported in other series [5,13-15] . Of note,<br />
the frequency of accidental deaths was higher in postbariatric<br />
surgery patients than in reference cohorts,<br />
which may indicate undiagnosed hypoglycemia and<br />
possible underestimation of the number of patients<br />
with hypoglycemia [12] .<br />
Classically, hypoglycemia in post-gastric<br />
bypass patients occurs postprandially or during<br />
the postabsorptive period (as opposed to during<br />
fasting). Post-gastric bypass hypoglycemia usually is<br />
associated with the concurrence of low serum glucose<br />
levels (typically < 60 mg/dl) and inappropriately<br />
elevated or measurable levels of insulin and C-<br />
peptide. The mechanisms behind post-gastric<br />
bypass hyperinsulinemic hypoglycemia are not<br />
well-understood. In 2005, Service et al reported a<br />
series of six patients with symptomatic postprandial<br />
hyperinsulinemic hypoglycemia that developed on<br />
average 30 months after gastric bypass surgery [16] .<br />
Insulinoma was ruled out using imaging studies and<br />
selective arterial calcium stimulation test [16] . These<br />
patients then underwent either extensive or spleenpreserving<br />
distal pancreatectomy, and islet specimens<br />
were obtained for histological study. The pancreatic<br />
islet sections obtained from the patients reported by<br />
Service et al showed evidence of nesidioblastosis<br />
(hypertrophic beta cells, with enlarged or normalappearing<br />
islets; small scattered clusters of endocrine<br />
cells; and ductuloinsular complexes) [16] . The authors<br />
thus concluded that insulin hypersecretion from<br />
nesidioblasts was responsible for post-gastric bypass<br />
hypoglycemia in their patients [16] . However, reexamination<br />
of the pancreatic histology by Meier<br />
et al raised doubts about the presence of true<br />
nesidioblasts [17] . Instead, evidence of increased beta<br />
cell nuclear diameter was observed in post-gastric<br />
bypass patients compared with controls [17] . Thus, the<br />
hypoglycemia in such patients could have arisen from<br />
a combination of exaggerated “dumping” syndrome<br />
and increased insulin secretion per beta cell.<br />
Another mechanism proposed for the insulin<br />
hypersecretion and possible islet cell proliferation was<br />
enhanced glucagon-like peptide 1 (GLP-1) secretion<br />
from L cells in distal ileum, resulting from the rapid<br />
transit of nutrients following gastric bypass surgery [16] .<br />
Indeed, studies identifiedexaggeratedGLP-1response<br />
and attendant insulinotropic and glucagonostatic<br />
effects as mechanisms for post-gastric bypass<br />
hypoglycemia [18,19] . Since the mechanisms underlying<br />
post-bariatric hypoglycemia are not fully understood,<br />
a standard approach to management has not yet been<br />
developed. Mild hypoglycemia may be evaluated<br />
and treated in an outpatient setting. However severe<br />
hypoglycemia likely requires hospitalization and<br />
evaluation to rule out etiologies such as insulinoma.<br />
Without randomized controlled studies, the<br />
therapeutic approach to severe post-bariatric surgery<br />
hypoglycemia has been empirical. Management<br />
usually begins with dietary modification, including<br />
frequent small meals with low carbohydrate content.<br />
Pharmacological approaches that have had variable<br />
success include diazoxide, acarbose, octreotide, and<br />
calcium channel blockers [6, 13, 20] . For patients with<br />
refractory hypoglycemia, surgical intervention may<br />
be warranted, either to reverse the gastric restriction<br />
procedure or reduce the mass of insulin-secreting<br />
pancreatic tissue [5- 7, 14- 16] .<br />
In summary, severe hyperinsulinemic hypoglycemia<br />
is a rare but serious sequel of gastric bypass surgery.<br />
It usually presents a few years after the surgery and is<br />
accompanied by neuroglycopenic symptoms including<br />
confusion, seizure, syncope or coma. Future studies<br />
should be directed at unraveling the mechanisms,<br />
identifying risk factors, and developing optimal<br />
surveillance and management strategies for post-gastric<br />
bypass hypoglycemia. While awaiting the results of<br />
definitive studies on the subject, clinicians should be<br />
cognizant of the risk of hypoglycemia, educate gastric<br />
bypass patients on the warning symptoms of impending<br />
hypoglycemia and appropriate corrective measures.<br />
REFERENCES<br />
1. Ogden C, Carroll M, Kit B, Flegal K. Prevalence of<br />
obesity in the United States, 2009 - 2010. NCHS Data<br />
Brief <strong>2012</strong>; 82:1-7.<br />
2. Haslam DW, James WP. Obesity. Lancet 2005; 366:1197-<br />
1209.<br />
3. Rucker D, Padwal R, Li SK, Curioni C, Lau DC. Long<br />
term pharmacotherapy for obesity and overweight:<br />
updated meta-analysis. BMJ 2007; 335:1194-1199.<br />
4. Klein S, Fontana L, Young VL, et al. Absence of an effect<br />
of liposuction on insulin action and risk factors for<br />
coronary heart disease. N Engl J Med 2004; 350:2549-<br />
2557.<br />
5. Ritz P, Hanaire H. Post-bypass hypoglycaemia: a review<br />
of current findings. Diabetes Metab 2011; 37:274-281.<br />
6. Ashrafian H, Athanasiou T, Li JV, et al. Diabetes<br />
resolution and hyperinsulinaemia after metabolic<br />
Roux-en-Y gastric bypass. Obes Rev 2011; 12:257-272.
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7. Patti ME, Goldfine AB. Hypoglycaemia following<br />
gastric bypass surgery-diabetes remission in the<br />
extreme? Diabetologia 2010; 53:2276-2279.<br />
8. Buchwald H, Avidor Y, Braunwald E, et al. Bariatric<br />
surgery: a systematic review and meta-analysis. JAMA<br />
2004; 292:1724-1737.<br />
9. Adams TD, Gress RE, Smith SC, et al. Long-term<br />
mortality after gastric bypass surgery. N Engl J Med<br />
2007; 357:753-761.<br />
10. Higa KD, Boone KB, Ho T. Complications of the<br />
laparoscopic Roux-en-Y gastric bypass: 1,040 patients<br />
- what have we learned? Obes Surg 2000; 10:509-513.<br />
11. Dagogo-Jack S. Hypoglycemia in type 1 diabetes<br />
mellitus: pathophysiology and prevention. Treat<br />
Endocrinol 2004; 3:91-103.<br />
12. Marsk R, Jonas E, Rasmussen F, Näslund E. Nationwide<br />
cohort study of post-gastric bypass hypoglycaemia<br />
including 5,040 patients undergoing surgery for obesity<br />
in 1986-2006 in Sweden. Diabetologia 2010; 53:2307-<br />
2311.<br />
13. Kellogg TA, Bantle JP, Leslie DB, et al. Post-gastric<br />
bypass hyperinsulinemic hypoglycemia syndrome:<br />
characterization and response to a modified diet. Surg<br />
Obes Relat Dis 2008; 4:492-499.<br />
14. Patti ME, McMahon G, Mun EC, et al. Severe<br />
hypoglycaemia post-gastric bypass requiring partial<br />
pancreatectomy: evidence for inappropriate insulin<br />
secretion and pancreatic islet hyperplasia. Diabetologia<br />
2005; 48:2236-2240.<br />
15. Z’graggen K, Guweidhi A, Steffen R, et al. Severe<br />
recurrent hypoglycemia after gastric bypass surgery.<br />
Obes Surg 2008; 18:981-988.<br />
16. Service GJ, Thompson GB, Service FJ, et al.<br />
Hyperinsulinemic hypoglycemia with nesidioblastosis<br />
after gastric-bypass surgery. N Engl J Med 2005; 353:249-<br />
254.<br />
17. Meier JJ, Butler AE, Galasso R, Butler PC.<br />
Hyperinsulinemic hypoglycemia after gastric bypass<br />
surgery is not accompanied by islet hyperplasia or<br />
increased beta-cell turnover. Diabetes Care 2006;<br />
29:1554-1559.<br />
18. Salehi M, Prigeon RL, D’Alessio DA. Gastric bypass<br />
surgery enhances glucagon-like peptide 1-stimulated<br />
postprandial insulin secretion in humans. Diabetes<br />
2011; 60:2308-2314.<br />
19. Rabiee A, Magruder JT, Salas-Carrillo R, et al.<br />
Hyperinsulinemic hypoglycemia after Roux-en-Y<br />
gastric bypass: unraveling the role of gut hormonal<br />
and pancreatic endocrine dysfunction. Surg Res 2011;<br />
167:199-205.<br />
20. Won JG, Tseng HS, Yang AH, et al. Clinical features and<br />
morphological characterization of 10 patients with noninsulinoma<br />
pancreatogenous hypoglycaemia syndrome<br />
(NIPHS). Clin Endocrinol (Oxf) 2006; 65:566-578.
277<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Review Article<br />
Asthma during Pregnancy: An Immunologic Perspective<br />
Fawaz Azizieh 1 , Raj Raghupathy 2<br />
1<br />
Department of Mathematics and Natural Sciences, Gulf University for Science and Technology, Kuwait<br />
2<br />
Department of Microbiology, Faculty of Medicine, Kuwait University, Kuwait<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 277 - 286<br />
ABSTRACT<br />
Asthma is one of the most common medical conditions<br />
to complicate pregnancy and represents a significant<br />
public health issue. Increased maternal complications<br />
and adverse fetal outcomes are associated with asthma<br />
during pregnancy. Since asthma can adversely affect the<br />
outcome of pregnancy, it is important for us to understand<br />
the mechanisms underlying asthma during pregnancy.<br />
In general, asthma is characterized by an up-regulated<br />
systemic production of T-helper 2 (Th2) cytokines.<br />
Pregnancy also brings about changes in maternal immune<br />
status making it polarized towards the Th2 phenotype.<br />
Based on these considerations, we hypothesize that<br />
pregnancy-induced immune alterations may modify<br />
allergic mechanisms of asthma and that systemic Th2<br />
cytokine and chemokine polarization does occur among<br />
asthmatics to a greater extent during pregnancy. We<br />
suggest that this is associated with exacerbation of asthma<br />
during pregnancy. The pathophysiology of asthma during<br />
pregnancy and the interrelationship between these two<br />
conditions are reviewed here.<br />
KEY WORDS: allergy, cytokines, Th1, Th2<br />
INTRODUCTION<br />
Asthma is one of the most common medical<br />
conditions in the world. It is also the most common<br />
condition affecting the lungs during pregnancy.<br />
About 7-12% of pregnant women may be affected by<br />
asthma, making asthma one of the most important<br />
medical conditions complicating pregnancy [1-3] .<br />
Asthma influences the outcome of pregnancy; it is<br />
considered to be a risk factor for several maternal and<br />
fetal complications, such as asthma exacerbations,<br />
hospitalizations because of asthma attacks, preeclampsia,<br />
preterm delivery, cesarean delivery,<br />
gestational hypertension, low birth weight and a higher<br />
risk of perinatal mortality [4,5] . Conversely, pregnancy<br />
also influences the severity of asthma; during<br />
pregnancy, approximately one third of asthmatic<br />
women experience exacerbation of their symptoms [6,7] .<br />
Women who have more severe asthma before<br />
pregnancy appear more likely to experience worsening<br />
asthma during pregnancy [8,9] ; prospective studies have<br />
shown that asthma is more likely to deteriorate during<br />
pregnancy in women with severe asthma than in those<br />
with mild asthma [1, 10] . Maintenance of optimal asthma<br />
control during pregnancy reduces maternal and fetal<br />
risk for complications [1] .<br />
Two questions about the interaction of asthma and<br />
pregnancy are raised by clinicians and patients alike:<br />
(i) How does pregnancy affect asthma? (ii) How does<br />
asthma affect the outcome of pregnancy? Asthma is<br />
an immunologic disease, and pregnancy brings about<br />
changes in the immune system. Thus, it is of interest to<br />
view asthma during pregnancy from an immunologic<br />
perspective.<br />
While the underlying immunologic mechanisms<br />
of the interactions between asthma and pregnancy are<br />
not fully understood, this review summarizes current<br />
knowledge about the immunology of asthma and<br />
the immunology of pregnancy, and suggests possible<br />
mechanisms for immunological interactions between<br />
asthma and pregnancy.<br />
ASTHMA<br />
The immune system surely does a splendid job<br />
of protecting us from infectious diseases (much of<br />
the time!). However, inappropriate responses of this<br />
system can lead to disease. Allergies and asthma are<br />
common among the outcome of immune dysfunction.<br />
Discomfort or even distress from common allergies<br />
may seem minor compared to life-threatening<br />
problems such as cancer or cardiovascular diseases,<br />
Address correspondence to:<br />
Raj Raghupathy, PhD, FRCPath, Department of Microbiology, Faculty of Medicine, Kuwait University, Kuwait. Tel: +965 24986527,<br />
Fax: +965 25332719, E-mail: raj@hsc.edu.<strong>kw</strong>
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 278<br />
but asthma is a serious problem that can cause severe<br />
difficulties in breathing. The real significance of<br />
asthma is demonstrated by the number of visits to<br />
the doctor and to the emergency room and days spent<br />
in the hospital [11] ; in fact, the number of visits to the<br />
doctor for hypertension or for pregnancy or general<br />
examination is each fewer than the number of visits<br />
for asthma. Indeed, the single most common reason for<br />
a visit to the emergency room in the Western world is<br />
an asthma attack.<br />
Asthma is a worldwide disease and a common one.<br />
With about 5% of the population in Western countries<br />
affected, there is no reason to assume that the incidence<br />
of asthma is lower in Kuwait and the Arabian Gulf.<br />
In fact, despite low allergen exposure, the pattern of<br />
childhood asthma in Kuwait follows that described<br />
in Western communities [12,13] . In Kuwait, the average<br />
annual admission rate for asthma per 100,000 people<br />
was 217 in the 1992-1994 period and the mean annual<br />
death rate per 100,000 people was about 1.6. The<br />
number of Kuwaiti patients being admitted for asthma<br />
has increased [13] . A survey made by the Asthma Insights<br />
and Reality in the Gulf and Near East (AIRGNE) of<br />
Jordan, Kuwait, Lebanon, Oman and the UAE in 2009<br />
showed that the comparative population prevalence of<br />
diagnosed current asthma was high, ranging from 23%<br />
in Kuwait to 32% in Lebanon [14] .<br />
IMMUNOPATHOGENESIS OF ASTHMA<br />
Asthma, also known as reversible obstructive airway<br />
disease, is characterized by hyperresponsiveness<br />
of the tracheobronchial tree to respiratory irritants<br />
and bronchoconstrictor chemicals producing attacks<br />
of wheezing, dyspnea, chest tightness and cough.<br />
This chronic respiratory disease is characterized by<br />
episodes of inflammation and narrowing of small<br />
airways in response to triggers of asthma. Asthma can<br />
be triggered by a variety of factors including allergens,<br />
infections, exercise, abrupt changes in the weather and<br />
exposure to airway irritants such as tobacco smoke.<br />
Asthma attacks can vary from mild to life-threatening.<br />
Asthma can be due to either an allergic response<br />
or a non-allergic response. Asthma due to an allergic<br />
response is also known as allergic asthma, extrinsic<br />
asthma, atopic asthma or immunologic asthma. 50% of<br />
asthma cases are “allergic-asthma” [4] . Allergic asthma<br />
is triggered by air-borne or blood-borne allergens<br />
such as pollen, dust, fumes, insect products or viral<br />
products. Non-allergic asthma, also known as intrinsic<br />
or idiopathic asthma, is induced by cold or exercise,<br />
apparently independently of allergens. However,<br />
regardless of the presence or absence of allergy, all<br />
asthmatic patients have the cardinal features of airway<br />
hyperreactivity, airway obstruction and eosinophilia.<br />
Allergic asthma in genetically susceptible<br />
individuals is a result of dysregulated immune<br />
responses to common environmental antigens. The<br />
pathogenesis of asthma involves cytokine production<br />
from T helper 2 (Th2) lymphocytes that in turn<br />
orchestrate the allergic inflammatory response. Upon<br />
recognition of an allergen, Th2 cells produce cytokines<br />
that induce IgE synthesis, activate eosinophils and mast<br />
cells, and up-regulate expression of adhesion molecules<br />
on endothelial and epithelial cells. Eosinophils are<br />
a key component of chronic allergic disease and<br />
contribute to many of the pathological processes of<br />
asthma producing molecules that stimulate vasomotor<br />
activity, bronchoconstriction and mucus secretion. They<br />
also produce a variety of pro-inflammatory cytokines<br />
such as tumor necrosis factor (TNF) α, interleukin<br />
(IL)-1 and IL-6. Anti-allergen IgE antibodies first bind<br />
to mast cells; subsequent exposure to the allergen<br />
triggers an IgE-mediated release of mediators that<br />
may cause an asthmatic attack. IgE-sensitized mast<br />
cells and basophils secrete several mediators such as<br />
histamine, leukotrienes and prostaglandins which<br />
lead to bronchoconstriction, vasodilation and buildup<br />
of mucus. Subsequently, other mediators including<br />
eosinophil-chemotactic factor, platelet-activating factor<br />
and the cytokines IL-4, IL-5 and TNFα are released;<br />
these mediators increase endothelial cell adhesion<br />
and recruit inflammatory cells such as eosinophils and<br />
neutrophils into the bronchial tissue.<br />
As Th2 reactivity is critical to the development<br />
of asthma, it is pertinent to elaborate on Th1/Th2<br />
dichotomy at this point.<br />
Th1 AND Th2 REACTIVITY<br />
One of the most significant advances in our<br />
understanding of immune responses has been the<br />
delineation of the Th1/Th2 paradigm, which provides<br />
a framework for understanding how the immune<br />
system directs responses to different types of pathogens<br />
and antigens. The two major subsets of CD4 + T helper<br />
cells, Th1 and Th2, have different patterns of cytokine<br />
production and different roles in immune responses.<br />
Each subset induces functions that are effective at<br />
handling certain types of pathogens, but can be<br />
ineffective, or may even have pathological effects if<br />
made in response to other types of pathogens [15, 16] .<br />
Th1 cells secrete IFNγ, TNFβ, IL-2 and TNFα, the so<br />
called Th1-type cytokines. Th1-type cytokines activate<br />
cell-mediated reactions important in resistance to<br />
infection by intracellular pathogens, and in cytotoxic<br />
and delayed-type hypersensitivity (DTH) reactions.<br />
Th2 cells, on the other hand, secrete IL-4, IL-5, IL-6, IL-<br />
10 and IL-13; these Th2-type cytokines promote robust<br />
antibody production and are therefore commonly<br />
found in association with strong antibody responses<br />
that are important in combating infections with<br />
extracellular <strong>org</strong>anisms. Which type of reactivity, Th1<br />
or Th2 is activated first may influence the subsequent
279<br />
Asthma during Pregnancy: An Immunologic Perspective<br />
<strong>December</strong> <strong>2012</strong><br />
Fig. 2: Role of IL-4 in the development of Th2 reactivity and<br />
activation of mast cells<br />
Fig. 1: Cells and cytokines involved in the activation of IgE<br />
production and activation of mast cells and eosinophils<br />
outcome; if a particular T cell subset is activated first<br />
or preferentially in a response, it can suppress the<br />
development of the other subset. The overall effect is<br />
that responses are often dominated by either humoral<br />
(Th2) or cell-mediated (Th1) immunity [15,16] .<br />
ASTHMA IS A Th2-MEDIATED REACTIVITY<br />
The generation of Th2 cells and the development<br />
of Th2-type reactivity are crucially dependent on the<br />
cytokine IL-4 [15,16] . Th2 development is greatly favored<br />
once a threshold level of IL-4 is reached. Th2 cells<br />
provide help to B cells and promote the production<br />
of relatively large amounts of IgE, IgM and noncomplement<br />
fixing IgG. In addition, Th2 cells cause<br />
mast cell growth via the production of IL-4, IL-10 and<br />
IL-13 and stimulate eosinophil activation via IL-5 [17] . It<br />
should be emphasized that Th2 cells support allergic<br />
reactions via the production of the quintessential Th2<br />
cytokines, IL-4 and IL-5 [17] and also IL-13 [18] . The coculture<br />
of CD4 + T cells with peripheral blood monocytes<br />
from atopic asthmatic subjects results in enhanced<br />
production of IL-4 and IL-5 [19] . The Th2 cytokine IL-<br />
4 thus plays prominent and indispensable roles in at<br />
least two stages of an allergic response – first, during<br />
the development of Th2 cells from its precursor (Fig.<br />
1) and second, during the activation of mast cells by<br />
Th2 cells (Fig. 2). The Th2 cytokine IL-13 induces IgE<br />
production by B cells.<br />
IL-4 [20] and IL-13 [21] both provide an essential first<br />
signal for an IgG → IgE switch in B cells. The Th2<br />
cytokines IL-5 and IL-6 enhance IgE production.<br />
Interestingly enough, the opposing or antagonistic<br />
natures of Th1 and Th2 cells ensure that Th1 cells<br />
do not support IgE synthesis [22] . Furthermore, the<br />
Th1 cytokines IFNγ and TNFα and the inflammatory<br />
cytokines IL-8 and IL-23 are inhibitory to IgE<br />
production. Thus there is clear evidence linking<br />
activation of allergen-specific Th2 cells to pathology in<br />
atopic allergic disease [23] and clearly allergic asthma is<br />
a Th2 phenomenon [24, 25] , while Th1 reactivity actually<br />
inhibits the development of allergy by inhibiting Th2<br />
development. As shown in Fig. 1, the Th2 cytokines IL-<br />
4, IL-5 and IL-10 are involved in the initial sequence of<br />
steps activating the production of IgE antibodies and<br />
subsequently in the activation of mast cells to produce<br />
other mediators which actually bring about allergic<br />
manifestations. Just as IL-4 is intimately involved in<br />
the development of Th2 reactivity, it also plays critical<br />
roles in the activation of mast cells as shown in Fig. 2.<br />
Levels of the Th2 cytokine IL-13 are increased in<br />
the airway mucosa of patients with asthma [26] and<br />
challenge with allergen results in increased levels of<br />
IL-13 in addition to IL-4. The administration of IL-13<br />
to mice increases airway eosinophilia and bronchial<br />
hyperresponsiveness. IL-13 induces inflammation<br />
by stimulating the expression of chemokines (i.e.,<br />
cytokines that are chemotactic for immune cells) such<br />
as eotaxin from cells in the airways and also induces<br />
airway hyperresponsiveness and hypersecretion of<br />
mucous in the airway epithelium [27] . Atopic asthma<br />
is characterized by increased production of Th2<br />
cytokines [1, 28] ; some studies have also reported upregulation<br />
of systemic Th2 cytokine production<br />
associated with increased symptoms of allergy [1] .<br />
Allergy is thus a Th2 phenomenon, and Th2 cytokines<br />
are intimately involved in the stimulation of allergy<br />
(Fig. 1 and 2) while Th1 cytokines are actually<br />
antagonistic to allergy.<br />
In addition to Th2-type cytokines, other cytokines<br />
such as IL-8 are also implicated in the development<br />
of asthma and in the chronic inflammatory<br />
processes of asthma by contributing to the release of<br />
inflammatory mediators such as histamine, airway<br />
remodeling, bronchoconstriction and bronchial<br />
hyperresponsiveness [29] . Chemokines are important in<br />
asthma, as they are involved in attracting leukocytes<br />
from the circulation into the airways [30, 31] . Particularly<br />
important among these are the chemokines RANTES,
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 280<br />
Fig. 3: Etiologies of asthma and the status of asthma during<br />
pregnancy<br />
eotaxin and IP-10. RANTES is a powerful eosinophil<br />
chemoattractant [32] and induces respiratory burst in<br />
eosinophils [33] . In addition, RANTES is a very effective<br />
basophil attractant [34] . Eotaxin, a Th2 chemokine, is<br />
elevated in individuals with asthma and eosinophilia,<br />
and many studies have evaluated its role in local<br />
tissues [35] .<br />
DOES ASTHMA GET BETTER OR WORSE<br />
DURING PREGNANCY?<br />
Asthma is the most common chronic condition<br />
to complicate pregnancy. During pregnancy,<br />
approximately one third of asthmatic women<br />
experience an exacerbation [6,7] . Women who have more<br />
severe asthma before pregnancy appear more likely<br />
to experience worsening asthma symptoms during<br />
pregnancy [8,9] ; prospective studies have shown that<br />
asthma is more likely to deteriorate during pregnancy<br />
in women with severe asthma (52 - 65%) than in those<br />
with mild asthma (8 - 13%) [10,36] .<br />
What happens to asthmatic women when they<br />
get pregnant? Do the symptoms get better or do they<br />
get worse? The consensus is that one-third of females<br />
experience a worsening of asthma during pregnancy,<br />
one-third improve and one-third remain unchanged [9,37-<br />
39]<br />
(Fig. 3). It is unclear whether this is due to changes<br />
in asthma severity, changes in asthma control or<br />
exacerbations during pregnancy. A variety of methods<br />
have been used to obtain this data. Most studies have<br />
used subjective questionnaires to ascertain the global<br />
change in asthma experienced during pregnancy, while<br />
a few studies have obtained data from daily recordings<br />
of symptom or changes in treatment requirements.<br />
However, even though only a few studies have<br />
examined objective measures such as lung function by<br />
peak spirometry or airway hyperresponsiveness, the<br />
general trend seems to support the notion that asthma<br />
symptoms worsen in about 24 - 43% of asthmatic<br />
women during pregnancy, improve in about 14 - 42%<br />
of women and are unchanged in 24 - 43% of women.<br />
For example, Williams examined hospital records<br />
and reported that asthma gets worse in 24% of<br />
pregnant women, remains the same in 34% and<br />
symptoms improve in 42% of pregnant women [40] .<br />
Similarly, Schatz et al evaluated asthma in 336 pregnant<br />
women based on the daily symptoms diaries as well<br />
as by subjective classification of overall changes and<br />
reported that asthma became worse in 35% of women,<br />
unchanged in 33% and improved in 28% [38] . The same<br />
evaluation based on the same criteria was reported more<br />
recently and the percentages were 36%, 26% and 34%<br />
respectively [41] . Based on questionnaires on symptoms<br />
and self-report of overall changes in breathing, many<br />
others reported that asthma in pregnant women got<br />
worse in 34 - 41%, remained the same in 24 - 31% and<br />
improved in 28 - 35% [3,42] .<br />
In subjects whose asthma worsened, a significant<br />
increase has been reported in the number of days of<br />
wheezing and interference with sleep and activity<br />
between 25 - 32 weeks gestation [38] . In asthmatic<br />
subjects who felt their asthma improved overall,<br />
there was a decrease in wheezing with little change<br />
in interference with sleep or activity between 25 - 32<br />
weeks gestation. Most subjects who felt their asthma<br />
worsened during pregnancy actually improved postpartum,<br />
with significantly fewer days of wheezing<br />
at 5 - 12 weeks post-partum compared with 29 - 32<br />
weeks of gestation. Conversely, most subjects who<br />
felt their asthma improved during pregnancy later<br />
worsened after delivery, with significantly more days<br />
of interference of activity in this period compared with<br />
29 - 36 weeks of gestation. In general, increased asthma<br />
severity during pregnancy is associated with greater<br />
morbidity in the mother and newborn [38] .<br />
In summary then, the paradigm has remained for<br />
decades that during pregnancy, asthma will worsen in<br />
one-third of women, remain the same in one-third and<br />
improve in one-third.<br />
MECHANISMS OF PREGNANCY-INDUCED<br />
CHANGES IN ASTHMA<br />
The mechanisms that contribute to changes in<br />
asthma during pregnancy are not well understood,<br />
although increases in maternal circulating hormones,<br />
altered 2-adrenoreceptor responsiveness or fetal sex<br />
have been suggested to be involved (Fig. 4). One<br />
could postulate that elevations in both estrogen<br />
and progesterone that occur particularly during<br />
the first trimester may contribute to the severity of<br />
asthma during pregnancy. Evidence for this can be<br />
found from the multiple studies that have reported<br />
associations between higher levels of hormones<br />
and asthma symptoms. For example, more frequent
281<br />
Asthma during Pregnancy: An Immunologic Perspective<br />
<strong>December</strong> <strong>2012</strong><br />
Fig. 4: Possible effects of asthma on the outcome of pregnancy<br />
asthma symptoms have been reported in association<br />
with menstruation [43] and in association with hormone<br />
replacement therapy [<strong>44</strong>,45] . Increased progesterone<br />
levels, in both animals [46] and humans [<strong>44</strong>,45] , have<br />
been associated with worsening asthma symptoms<br />
in several, but not all studies [47] . Both estrogen and<br />
progesterone have been shown to up-regulate Th2<br />
cytokine production both in vitro [48,49] and in vivo [50] .<br />
The pregnancy-associated rise in serum-free cortisol<br />
may contribute to improvements in asthma during<br />
pregnancy [51] , since cortisol has anti-inflammatory<br />
properties. In addition, estradiol and progesterone<br />
concentrations increase significantly during<br />
pregnancy [51] . Progesterone is known to contribute to<br />
increased ventilation during normal pregnancy [52] and<br />
is also a potent smooth muscle relaxant [53] and may,<br />
therefore, be expected to contribute to improved asthma<br />
during pregnancy. On the other hand, progesterone<br />
has been shown to induce Th2-type reactivity [54-56] and<br />
thus pregnancy-associated increase in progesterone<br />
levels may be postulated to result in an increased Th2-<br />
bias and thus increased severity of asthma.<br />
Changes in β2-adrenoreceptor responsiveness<br />
and airway inflammation as a result of circulating<br />
progesterone may also contribute to worsening asthma<br />
during pregnancy [52] . Alterations in asthma associated<br />
with changes in sex steroid production during the<br />
menstrual cycle have previously been observed [57] ,<br />
with up to 40% of females experiencing an exacerbation<br />
around the time of menstruation when progesterone<br />
and estradiol levels are low [58] .<br />
The season of pregnancy or delivery was not<br />
found to affect asthma progression [38] , suggesting<br />
that allergen exposure may not play a role in asthma<br />
alterations with pregnancy. Kircher et al [41] suggest<br />
that factors, such as IgE, which affect both the upper<br />
and lower airways, may be important in changes that<br />
occur in asthma during pregnancy. Early studies by<br />
Gluck and Gluck [37] also showed a correlation between<br />
increased serum IgE and deteriorating asthma during<br />
pregnancy.<br />
An observation that is worth mentioning here in<br />
terms of mechanisms and clinical relevance, is pertinent<br />
to the course of asthma during pregnancy. More severe<br />
asthma tends to worsen during pregnancy, whereas<br />
less severe asthma tends to remain unchanged or<br />
tends to improve [38] . The relationship between asthma<br />
severity classification and subsequent changes in<br />
asthma during pregnancy was assessed in a study<br />
on 1,700 pregnant asthmatics [7] . Exacerbations of<br />
asthma occurred in over half of all severe asthmatics,<br />
while only 12% of patients with mild asthma had<br />
exacerbations during pregnancy.<br />
It is tempting to suggest that perhaps maternal<br />
immune factors, such as the prevailing Th2 versus<br />
Th1 cytokine profile, may be one of the determinants<br />
of whether an asthmatic woman will get better or<br />
worse when she gets pregnant. Is this possibly due to<br />
an already heavily Th2-biased immune system tilting<br />
towards a stronger Th2 bias during pregnancy?<br />
IMPACT OF ASTHMA ON PREGNANCY<br />
In addition to the observed effects of pregnancy<br />
on asthma, it is also well-recognized that women<br />
with asthma are at increased risk of poor pregnancy<br />
outcomes [59] . Cases of severe life-threatening asthma<br />
requiring first trimester termination of pregnancy have<br />
been reported and an improvement in maternal asthma<br />
within 24 hours of termination has been observed [60] .<br />
Epidemiological studies have demonstrated that<br />
asthmatic females are at increased risk of many poor<br />
outcomes of pregnancy. Uncontrolled asthma in<br />
pregnant women can result in perinatal complications<br />
and exacerbations which can be life-threatening for<br />
the mother and fetus [37] .<br />
Increased maternal complications, including<br />
pre-eclampsia [61] , gestational diabetes [62] , preterm<br />
labor [63] , intrauterine growth restriction [59] , vaginal<br />
hemorrhage [64] , placenta previa [65] and cesarean<br />
delivery [65] have been described. Adverse fetal<br />
outcomes include increased risk of perinatal<br />
mortality [66] , intrauterine growth restriction [59] and<br />
low birth weight [62] . As early as in 1970, Gordon et<br />
al [66] reported a relatively large number of maternal<br />
or perinatal deaths in asthmatic patients, which were<br />
more likely to occur in severe asthmatics. A Californian<br />
perinatal database study comparing asthmatics to<br />
controls showed that asthmatics were more at risk<br />
of cesarean section, pre-term labour or delivery and<br />
pre-term premature rupture of the membranes. A<br />
cohort of almost 25,000 pregnant females in Canada<br />
found a significant association between pre-eclampsia<br />
and asthma [67] . Greenberger and Patterson [68] found
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KUWAIT MEDICAL JOURNAL 282<br />
that those who had been hospitalized with status<br />
asthmaticus delivered neonates of reduced birth weight<br />
compared with those who were not hospitalized for<br />
asthma, suggesting that an acute attack of asthma may<br />
put the fetus at additional risk, particularly of intrauterine<br />
growth restriction (IUGR).<br />
However, it must be conceded that a few studies<br />
have not found such correlations. Apter et al [69] found<br />
no evidence of an increased rate of pre-eclampsia,<br />
pre-term delivery or IUGR in asthmatic adolescents<br />
compared with general estimates for adolescent<br />
pregnancies. However, these researchers did report<br />
that IUGR was significantly more likely in females<br />
with moderate or severe asthma, who required<br />
hospitalization during pregnancy, compared to<br />
subjects with mild asthma, who were not hospitalized<br />
for asthma during pregnancy. Similarly, Mabie et al [70]<br />
reported no increased rate of pre-term delivery or low<br />
birth weight among asthmatic females compared with<br />
general population rates, which were very high (17.7<br />
and 6.3%, respectively). Likewise, Tata et al [71] reported<br />
an increase in risks of miscarriage and cesarean section<br />
in women with more severe asthma and previous<br />
asthma exacerbation, but not other complications.<br />
Despite the few studies showing a lack of<br />
adverse consequences, a majority of the studies have<br />
demonstrated associations between asthma and preeclampsia,<br />
and asthma and low birth weight by both<br />
historical or prospective cohort and case-control<br />
studies. A meta-analysis of the association between<br />
asthma in pregnancy and low birth weight babies<br />
showed that there was a significantly increased risk of<br />
low birth-weight babies in asthmatic pregnancies and<br />
that there was no significant increase in the risk of low<br />
birth weight with asthma when inhaled corticosteroids<br />
(ICS) were used [59] .<br />
There is therefore, a general agreement that severe<br />
asthma requiring corticosteroid therapy is associated<br />
with an increased incidence of low birth-weight<br />
babies and of preterm births [72-74] . Asthma, when<br />
not treated with inhaled steroids during pregnancy<br />
was associated with changes in placental function<br />
that affect fetal development which includes the<br />
hypothalamic-pituitary axis and growth [16] . In general,<br />
published data suggest that asthma severity, especially<br />
with suboptimal control, is associated with adverse<br />
pregnancy outcomes (Fig. 4) [74] .<br />
PREGNANCY: A Th2-TYPE SITUATION<br />
The fetus can be viewed as a sort of a semiallogeneic<br />
allograft that expresses paternally-derived<br />
antigens, which under non-pregnant circumstances<br />
would result in the activation of a “rejection reaction”.<br />
However, it is postulated that a number of processes<br />
are activated in concert to protect the fetus and thus<br />
ensure its survival. These include the separation<br />
of the maternal and fetal circulations, masking of<br />
paternal antigens on the trophoblast, endocrinological<br />
inhibition of adverse maternal immune reactions and<br />
production of immunomodulatory factors by both the<br />
mother and fetus. In 1993, Wegmann et al proposed that<br />
a shift towards Th2-mediated immunity particularly at<br />
uterine sites during pregnancy inhibits Th1 immune<br />
responses and prevents the rejection of the fetus by the<br />
maternal immune system [75] .<br />
Humoral immune responses are enhanced during<br />
pregnancy, while cell-mediated immune responses<br />
and the course of cell-mediated autoimmune disorders<br />
are down-regulated. Clinical evidence indicates that<br />
pregnant women undergo immunological changes<br />
consistent with a weakening of Th1 responses and<br />
strengthening of Th2 responses [75,76] leading to the<br />
contention that successful pregnancy probably<br />
depends on preferential stimulation of Th2 cytokineproducing<br />
cells. Experiments on mice and evidence in<br />
humans indicate that humoral responses are enhanced<br />
during pregnancy, but that there is a down-regulation<br />
of cell-mediated reactivity, responses to intracellular<br />
infections and the course of cell-mediated autoimmune<br />
disorders. These observations are consistent with a<br />
dampening of pro-inflammatory or Th1 reactivity and<br />
augmentation of anti-inflammatory or Th2 immunity<br />
during pregnancy.<br />
Dudley et al [77] found that cytokine responses by<br />
activated lymphocytes from pregnant mice are marked<br />
by a progressive decline in the production of the Th1<br />
cytokine IL-2 and a concomitant increase in the levels<br />
of the Th2 cytokine IL-4. In humans, there are reports<br />
of significantly higher production of IL-10 (a Th2<br />
cytokine) by mitogen-activated PBMC in pregnant<br />
women as compared with non-pregnant women [78] .<br />
Kruse et al [79] reported significantly reduced IL-2<br />
and IFNγ mRNA expression during normal human<br />
pregnancy and a shift to a pronounced Th2 status.<br />
Using flow cytometric techniques on a single cell,<br />
significantly increased IL-4-producing CD4 + and CD8 +<br />
T cells were demonstrated in normal pregnant women<br />
as compared to non-pregnant women. In contrast,<br />
IFNγ- and IL-2-producing CD4 + and CD8 + T cells were<br />
significantly reduced in pregnancy, which is suggestive<br />
of a Th2 shift in pregnancy [80] . Thus, pregnancy is indeed<br />
a Th2-type phenomenon as proposed by Wegmann et<br />
al [75] and pregnancy seems to engender a shift towards<br />
Th2 bias [76] .<br />
Thus, the two broad lines of evidence described<br />
above show that both asthma and pregnancy are<br />
indeed Th2-type situations. Th2 cells and cytokines<br />
stimulate IgE production and are responsible for the<br />
activation of mast cells and inflammatory responses in<br />
asthma [17-21,23-26] . Likewise, pregnancy is associated with<br />
a dominance of Th2 reactivity and at the same time Th2<br />
reactivity is conducive to successful pregnancy [75,76] .
283<br />
Asthma during Pregnancy: An Immunologic Perspective<br />
<strong>December</strong> <strong>2012</strong><br />
Interestingly, immune mechanisms involved in the<br />
maintenance of asthma-related symptoms are regulated<br />
by Th2-mediated mechanisms as in normal pregnancy<br />
which leads us to propose that pregnancy may worsen<br />
asthma by bringing about a stronger bias towards Th2<br />
reactivity. However this rather simplistic notion is<br />
complicated by the fact that the disease becomes worse<br />
in only about a third of the patients and, not as one<br />
might predict, in all the patients.<br />
IMMUNE STATUS IN ASTHMATIC WOMEN WHO<br />
BECOME PREGNANT<br />
Pregnancy is proposed to be a state of wide-spread<br />
lymphocyte activation, but at the same time it may<br />
blunt lymphocyte activation which characterizes<br />
bronchial asthma [81] . However, immunological<br />
changes in asthmatic women during pregnancy are<br />
not well elucidated. Tamasi et al [82] reported signs of<br />
pregnancy-induced attenuation of allergic responses<br />
in asthmatic pregnant women. Activated pools within<br />
CD4 + and CD8 + T cells were larger, and the number<br />
of natural killer T (NK-T) cells was increased both<br />
in non-pregnant asthmatic and in healthy pregnant<br />
subjects (compared to non-pregnant healthy controls),<br />
but in well-controlled pregnant asthmatics no further<br />
lymphocyte activation was observed, suggesting<br />
that the immunosuppressive effect of uncomplicated<br />
pregnancy may dull lymphocyte activation which<br />
characterizes asthma. In addition, as a sign of an<br />
enhanced T cell apoptosis, higher numbers of cytotoxic<br />
T cells was detected in healthy pregnant women than in<br />
healthy non-pregnant women, together with a positive<br />
correlation between cytotoxic T cell counts and birth<br />
weights in healthy but not in asthmatic pregnancies. On<br />
the other hand, in another study on poorly-controlled<br />
asthmatic pregnant women, a substantial number of<br />
peripheral IFN-γ-producing cells were detected, and a<br />
significant negative correlation was revealed between<br />
the number of IFN-γ-positive T cells and birth weight<br />
of newborns, suggesting that intrauterine growth<br />
restriction can be related to active, asthma-associated<br />
maternal immune reactions [82] .<br />
Bohacs et al [81] reported an increased prevalence<br />
of regulatory T (Treg) cells in peripheral blood of<br />
healthy pregnant women but a lower prevalence of<br />
Treg cells and an elevated prevalence of NK-T cells<br />
in pregnant asthmatic women compared to healthy<br />
pregnant women. They also reported lower effector /<br />
mem¬ory ratios and higher naive T cell prevalence in<br />
asthmatic pregnant patients compared to non-pregnant<br />
asthmatics [83] .<br />
Analysis of immune cells in the maternal circulation<br />
indicates that circulating white cells are altered in<br />
asthmatics when compared to non-asthmatics and that<br />
these alterations may contribute to worsening asthma<br />
during pregnancy. Maternal circulating monocyte<br />
populations were significantly increased in pregnant<br />
asthmatic women not using inhaled steroids for the<br />
treatment of their disease [84] . Monocytes play important<br />
inflammatory roles in asthma, as the precursors to<br />
macrophages and also through their interaction with<br />
Th2 lymphocytes, eosinophils and mast cells within<br />
the lung. Murphy et al [84] examined placental Th2:Th1<br />
cytokine mRNA ratios and found a significant increase<br />
in placental Th2:Th1 cytokine mRNA ratios in females,<br />
as assessed by measuring TNFα (Th1) and IL-5 (Th2)<br />
mRNA.<br />
A CYTOKINE LINK BETWEEN ASTHMA AND<br />
PREGNANCY<br />
As pregnancy is a Th2-type situation, it is tempting<br />
to predict that symptoms in asthmatic women may<br />
become worse when they get pregnant, because<br />
asthma is also a Th2-type situation. It is a sort of<br />
an “immunological double whammy”! One might<br />
speculate that the Th2 predominance seen in pregnancy<br />
might worsen asthma situations; by corollary then,<br />
all asthmatic women should have worsened asthma<br />
symptoms when they become pregnant. However,<br />
this is not the case; the dogma holds that only about<br />
33% of asthmatic women have worsened symptoms<br />
during pregnancy, while approximately 33% actually<br />
get better!<br />
There is a lack of studies on longitudinal assessment<br />
of cytokine bias during and after pregnancy in<br />
asthmatics that become pregnant as also possible effects<br />
of changes in cytokine patterns on asthma symptoms<br />
during pregnancy. Rastogi et al [85] reported a nonsignificant<br />
trend towards decreased intracytoplasmic<br />
levels of IFNγ and increased IL-4 levels in pregnant<br />
asthmatics. Non-asthmatic pregnant women were not<br />
studied. Interestingly, these researchers demonstrated<br />
a decline in IP-10/eotaxin ratio over the course of<br />
pregnancy; this ratio was also shown to be associated<br />
with worse asthma symptoms. The levels of other<br />
cytokines were not estimated in this study. Clearly this<br />
aspect needs to be investigated further.<br />
Tamasi et al [86] demonstrated increased levels of<br />
IFNγ-producing T cells in pregnant asthmatics as<br />
compared to non-pregnant asthmatics. IL-4-producing<br />
T cells were also increased in number though to a much<br />
lower extent, leading these researchers to conclude<br />
that pregnancy in asthmatics leads to a dominant<br />
IFNγ response. While these results are interesting, it<br />
should be noted that pregnant non-asthmatics were<br />
not compared, nor were other cytokines tested.<br />
CONCLUSION<br />
The jury is still out; as asthma is characterized<br />
by increased Th2 polarization, we suggest that<br />
pregnancy-associated Th2 polarization may contribute<br />
mechanistically to worse birth outcomes. Our
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 284<br />
hypothesis is that asthmatic women who get worse<br />
during pregnancy have a different cytokine profile<br />
as compared to asthmatic women who get better<br />
during pregnancy. We suggest that some asthmatic<br />
women develop a substantially stronger Th2-bias<br />
during pregnancy as compared to other asthmatic<br />
women; and that the former subgroup would have<br />
worsened asthma symptoms than the latter due to<br />
the stronger Th2-bias. Further studies are needed to<br />
elucidate the relationship between immunological<br />
alterations in Th2 polarization and asthma symptoms<br />
during and following pregnancy. Closer monitoring<br />
with early identification and perhaps treatment of<br />
Th2 polarization may in turn lead to reduced asthma<br />
symptomatology and perhaps prevention of asthmarelated<br />
adverse effects on the fetus.<br />
ACKNOWLEDGMENTS<br />
Supported by Kuwait University Research grant<br />
No. MI02/10<br />
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287<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Original Article<br />
Intravenous Labetalol versus Oral Nifedipine in the<br />
Treatment of Severe Hypertension in Pregnancy<br />
Ronita Devi Mayanglambam 1 , Tempe Anjali 2<br />
1<br />
Department of Obstetrics and Gynecology, Jawaharlal Nehru Institute of Medical Sciences, Porompat, Imphal, Manipur, India<br />
2<br />
Department of Obstetrics and Gynecology, Maulana Azad Medical College and Lok Nayak Hospital, New Delhi, India<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 287 - 290<br />
ABSTRACT<br />
Objective: To evaluate the efficacy of intravenous labetalol<br />
versus oral nifedipine in the treatment of severe hypertension<br />
with pregnancy<br />
Design: Prospective, non-randomized<br />
Setting: Department of Obstetrics and Gynecology, Maulana<br />
Azad Medical College and Lok Nayak Hospital, New Delhi,<br />
India<br />
Subjects and Methods: Fifty pregnant patients with severe<br />
hypertension (blood pressure ≥ 160/110 mmHg).<br />
Intervention: The patients were consecutively given either<br />
intravenous labetalol or oral nifedipine.<br />
Main Outcome Measures: The speed and adequacy of<br />
control of blood pressure was compared in both groups<br />
Results: Both drugs were effective in the control of blood<br />
pressure, but nifedipine caused significant reduction of blood<br />
pressure in 20 minutes with a single dose i.e., with the first<br />
dose (p = 0.03). The diastolic blood pressure reduction was<br />
also significant with nifedipine (15.1 ± 6 Vs 8.3 ± 2 mmHg) (p<br />
= 0.03). Average time required was also less with nifedipine<br />
(24 ± 8.2 Vs <strong>44</strong>.21 ± 26.31 minutes, p = 0.006).<br />
Conclusions: Both drugs effectively controlled the blood<br />
pressure in severe hypertension in pregnancy. However,<br />
nifedipine faired better than labetalol in time taken,<br />
reduction of diastolic blood pressure and number of patients<br />
responding with first dose (i.e., in 20 minutes).<br />
KEY WORDS: eclampsia, hypertension, pregnancy, proteinuria<br />
INTRODUCTION<br />
Hypertension in pregnancy is one of the main<br />
causes of maternal deaths in both developed and<br />
developing countries [1] . The main goal of treatment of<br />
hypertension in pregnancy is to safeguard the mother<br />
from the development of acute complications like<br />
cererbro-vascular accidents, eclampsia, target <strong>org</strong>an<br />
damage and maternal mortality while delivering a<br />
healthy infant [2,3] . According to the consensus report<br />
on high blood pressure, the ideal antihypertensive<br />
drug should be potent and safe, rapidly acting,<br />
controllable and without detrimental maternal or<br />
fetal side effects [4] . Labetalol, an α and β adrenergic<br />
blocker, produces rapid dose dependant reduction in<br />
blood pressure by decreasing the peripheral vascular<br />
resistance without causing reflex tachycardia and<br />
fetal distress [5-7] . Labetalol does not reduce cerebral<br />
perfusion and utero-placental blood flow, it has an<br />
anti-platelet aggregation property [8] and a fetal lung<br />
maturation accelerating influence [9] and it also decreases<br />
proteinuria. American College of Obstetricians and<br />
Gynecologists currently recommend labetalol as one<br />
of the first line antihypertensive medications in preeclampsia<br />
[10] . Intravenous labetalol has been available<br />
in India only recently.<br />
On the other hand, nifedipine (calcium channel<br />
blocker) is easily available in India and a less expensive<br />
drug which can also be used in the treatment of severe<br />
hypertension in pregnancy. However, concomitant use<br />
of nifedipine and magnesium sulphate is supposed<br />
to cause neuromuscular blockade [11] , maternal<br />
hypotension and fetal distress. Additionally, nifedipine<br />
has tocolytic effect and reflex tachycardia.<br />
The present study was undertaken to compare<br />
the efficacy of intravenous labetalol for the treatment<br />
of severe hypertension in pregnancy, with nifedipine<br />
administered orally.<br />
SUBJECTS AND METHODS<br />
After institutional and ethical committee approval, a<br />
non-randomized trial was conducted in the Department<br />
of Obstetrics and Gynecology, Maulana Azad Medical<br />
Address correspondence to:<br />
Dr Ronita Devi Mayanglambam, Room No 28, Ladies Hostel, JNIMS, Imphal 795005, Manipur, India. Mobile: 91-977<strong>44</strong>92758,<br />
91-9856540896, E-mail: mronitadevi@rediffmail.com
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 288<br />
College and associated Lok Nayak Hospital, New<br />
Delhi from <strong>December</strong> 2006 and <strong>December</strong> 2008.<br />
The study included patients selected according to<br />
the criteria given below. Fifty patients were included<br />
in the study.<br />
Inclusion criteria<br />
Pregnancy more than or equal to 20 weeks of<br />
gestation, having severe hypertension i.e., systolic<br />
blood pressure (SBP) of at least 160 mmHg and / or<br />
diastolic blood pressure (DBP) of at least 110 mmHg<br />
with or without proteinuria were included.<br />
Exclusion criteria<br />
Patients with cardiac failure, history of bronchial<br />
asthma, bradycardia (pulse rate < 60 beats per minute),<br />
allergic diathesis and eclampsia were excluded.<br />
After taking history, doing a complete examination<br />
and taking informed consent, either intravenous<br />
labetalol or oral nifedipine were given to the patients<br />
consecutively. Patients were divided into two groups<br />
(i.e., group A - labetalol and group B - nifedipine).<br />
Group A: Twenty fivepatientsreceivedintravenous<br />
labetalol (n = 25), 20 mg intravenous bolus dose<br />
initially, (if not effective within 20 minutes) followed<br />
by escalating doses of 40 mg (2 nd dose), 80 mg (3 rd<br />
dose), 80 mg (4 th dose), and then 80 mg (5 th dose)<br />
every 20 minutes until the therapeutic blood pressure<br />
goal of SBP < 160 mmHg and DBP < 110 mmHg was<br />
achieved or up to a maximum dose of 300 mg or five<br />
doses (Fig. 1).<br />
Group B: Twenty five patients received oral<br />
nifedipine (n = 25), 10 mg oral dose initially, with<br />
repeated doses of 20 mg every 20 minutes until the<br />
therapeutic goal (SBP < 160 mmHg and DBP of < 110<br />
mmHg) was achieved or up to a maximum dose of<br />
90 mg or five doses (Fig. 1).<br />
The patients were then put on oral maintenance<br />
dose of either oral labetalol 100 mg twice daily or<br />
oral nifedipine 10 mg twice daily in addition to a<br />
fixed dose of 250 mg thrice daily of α-methyl dopa<br />
to start with. The dose of labetalol and nifedipine<br />
were titrated to a maximum of 1200 mg of labetalol<br />
or 60 mg of nifedipine in divided doses in the two<br />
groups respectively.<br />
The outcome measures were assessed in terms of<br />
the control of the blood pressure i.e., SBP < 160 mmHg<br />
and DBP < 110 mmHg. The time taken for the control<br />
of blood pressure, the number of doses required was<br />
noted and the patients were observed during the first<br />
two hours.<br />
Statistical analysis<br />
Student’s t test was applied for comparing age,<br />
fall in diastolic blood pressure, fall in systolic blood<br />
pressure and average time required to control blood<br />
pressure between the two groups. Fisher’s Z-test<br />
was used for comparing the proportion of blood<br />
pressure controlled in the two groups by single dose<br />
of individual drug. A p-value of < 0.05 was regarded<br />
as statistically significant<br />
RESULTS<br />
Table 1 shows the demographic data of the two<br />
treatment groups. There were no significant differences<br />
in ages between the two groups. The mean age at<br />
presentation was 24.5 years in group A and 25.35 years<br />
in group B. Seventy five per cent of patients were<br />
Table 1: Demographic data<br />
Patient classification<br />
Group A<br />
(Labetalol)<br />
n = 25<br />
Group B<br />
(Nifedipine)<br />
n = 25<br />
Fig. 1: Flow chart showing methodology<br />
Mean age (years)<br />
Parity<br />
Nullipara<br />
Para 1<br />
Para 2<br />
Booked/Unbooked<br />
Booked<br />
Unbooked<br />
Type of Severe Hypertension<br />
Gestational hypertension<br />
Pre-eclampsia<br />
Chronic hypertension<br />
Chronic hypertension with<br />
Superimposed pre-eclampsia<br />
24.50 ± 3.017<br />
18<br />
2<br />
5<br />
5<br />
20<br />
4<br />
19<br />
1<br />
1<br />
25.35 ± 3.74<br />
10<br />
12<br />
3<br />
4<br />
21<br />
5<br />
17<br />
2<br />
1
289<br />
Intravenous Labetalol versus Oral Nifedipine in the Treatment of Severe Hypertension ...<br />
<strong>December</strong> <strong>2012</strong><br />
Table 2: Effects of drugs on blood pressure<br />
Table 3: Average time for control of blood pressure in minutes<br />
Group A<br />
(Labetalol)<br />
n = 25<br />
Group B<br />
(Nifedipine)<br />
n = 25<br />
Group<br />
Number of<br />
Patients who got<br />
BP controlled<br />
Mean<br />
(minutes)<br />
Blood Pressure Control<br />
Adequate<br />
Not adequate<br />
Doses required to get the<br />
therapeutic blood pressure goal<br />
1 st dose<br />
2 nd dose<br />
3 rd dose<br />
4 th dose<br />
5 th dose<br />
Successful treatment with first<br />
dose<br />
Amount of drug required (mg)<br />
Fall in blood pressure in first 20<br />
minutes<br />
Systolic BP (mmHg)<br />
Diastolic BP (mmHg)<br />
24/25<br />
1/25<br />
nulliparous in the group A and 45% of patients were<br />
para 1 in the group B. Most of the patients in both<br />
the groups were unbooked. Nineteen patients (76%)<br />
of group A and 17 patients (68%) of group B were<br />
pre-eclamptic patients (Table 1). The blood pressure<br />
control was achieved in both the groups fairly well.<br />
In nifedipine group, the control of blood pressure was<br />
achieved in all the patients. In labetalol group, blood<br />
pressure was controlled in 24 out of 25 patients, one<br />
patient who was not controlled with full dose, received<br />
nitroglycerin for control of hypertension. However,<br />
the number of patients controlled with the first dose of<br />
the drug was lower in labetalol group as compared to<br />
nifedipine group (10 / 25 Vs 20 / 25, p = 0.03). Mean<br />
doses requirement of labetalol and nifedipine were<br />
113.4 ± 20 mg and 20.5 ± 10 mg respectively. Mean<br />
SBP reduction of labetalol and nifedipine at first 20<br />
minutes were 14.4 ± 6 mmHg and 18.3 ± 5 mmHg<br />
respectively and there was no significant difference (p<br />
= 0.257) in SBP reduction in both the groups. There was<br />
significant difference (p = 0.03) in reduction of DBP in<br />
first 20 minutes between nifedipine (15.1 ± 6 mmHg)<br />
and labetalol (8.3 ± 2 mmHg) groups (Table 2). The<br />
average time required for control of blood pressure<br />
was <strong>44</strong>.2 ± 26.31 and 24 ± 8.2 minutes in labetalol<br />
and nifedipine groups respectively and there was<br />
significant difference in between the two groups (p =<br />
0.006) (Table 3).<br />
DISCUSSION<br />
Hypertension is one of the most common problems<br />
arising during the pregnancy complicating up to<br />
15% of all pregnancies, and within this disorder,<br />
approximately one in four patients will experience<br />
an episode of severe hypertension [12] . Treatment of<br />
10<br />
5<br />
4<br />
3<br />
3<br />
10<br />
113.4 ± 20<br />
14.4 ± 6<br />
8.3 ± 2<br />
25/25<br />
0<br />
20<br />
5<br />
0<br />
0<br />
0<br />
20 (p = 0.03)<br />
20.5 ± 10 (p = 0.0007)<br />
18.3 ± 5 (p = 0.257)<br />
15.1 ± 6 (p = 0.03)<br />
Group A (Labetalol) n = 25<br />
Group B (Nifedipine) n =25<br />
severe hypertension in pregnancy is mandatory as<br />
it decreases the incidence of maternal intracranial<br />
hemorrhage, hypertensive encephalopathy, abruptio<br />
placentae and maternal mortality. The maternal<br />
mortality from hypertensive disease has been studied<br />
for its attributing factors [13] . There is general agreement<br />
that rapid lowering of high blood pressure can reduce<br />
the maternal risk [14-16] .<br />
Labetalol and nifedipine, both are found to be<br />
safe drugs for the treatment of severe hypertension<br />
in pregnancy from the previous studies [17-20] . Previous<br />
reports [21,22] have indicated that there was apprehension<br />
in nifedipine use as the sublingual variety caused more<br />
sudden decrease in blood pressure, resulting thereby<br />
in overshoot hypotension and ischemia there upon.<br />
The oral variety does not seem to have this [23] effect as<br />
found in our study. There were minimal side effects in<br />
our patients with the use of either drug. No patient had<br />
sudden hypotension below 100 mmHg systolic during<br />
the initial two hours of treatment. Nifedipine achieved<br />
adequate control of blood pressure with only one dose<br />
in 20 / 25 patients whereas in the labetalol group only<br />
10 / 25 patients achieved the control of blood pressure<br />
with one dose, and this difference was statistically<br />
significant (p = 0.03). Both drugs lowered the SBP in the<br />
first 20 minutes by 14.4 ± 6 mmHg and18.3 ± 5 mmHg in<br />
labetalol and nifedipine group respectively and there<br />
was no statistically significant difference between the<br />
two groups. However, there was significant fall in the<br />
blood pressure particularly diastolic with nifedipine<br />
as compared to labetalol in the first 20 minutes. This<br />
is substantiated in other studies by Vermillion et al [20]<br />
and by Raheem et al [24] ; these authors found that the<br />
use of nifedipine was associated with increase in urine<br />
output in addition to rapid control over blood pressure<br />
as compared to labetalol. Whether rapid fall in blood<br />
pressure is beneficial or not is unclear, particularly if<br />
it is not causing cerebral hypoperfusion or overshoot<br />
hypotension or any other adverse effects on the fetus<br />
or the mother.<br />
Nevertheless, the importance of close monitoring<br />
of blood pressure every 20 minutes or earlier as need<br />
arises has to be emphasized as the patient can have<br />
hypotension if the drugs are not adequately titrated.<br />
If the trends of blood pressure over two hours<br />
are carefully observed, it is evident that both drugs<br />
achieved fair control of blood pressure in our study.<br />
24<br />
25<br />
<strong>44</strong>.21 ± 26.3<br />
24 ± 8.2 (p = 0.006)
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 290<br />
Therefore, either drug can be used successfully in<br />
the control of hypertension in pregnancy. The use<br />
of nifedipine for control of severe hypertension in<br />
pregnancy had been proven in earlier studies [25-30]<br />
as well. However, labetalol may be advantageous in<br />
delirious patient because of its intravenous route.<br />
CONCLUSION<br />
Both drugs effectively controlled the blood pressure<br />
in severe hypertension in pregnancy. However,<br />
nifedipine faired better than labetalol in time taken,<br />
reduction of DBP and number of patients responding<br />
with first dose (i.e, in 20 minutes).<br />
REFERENCES<br />
1. Van Schie DL, De Jeu RM, Steyn DW, Odendaal HJ,<br />
Geijn HPV. The optimal dosage of ketanserin for<br />
patients with severe hypertension in pregnancy. Eur J<br />
Obstet Gynecol Rprod Biol 2002; 102:161-166 .<br />
2. Bolte AC, Geijn HPV, Dekker GA. Pharmacological<br />
treatment of severe hypertension in pregnancy and<br />
the role of serotonin -2 receptor blockers. Eur J Obstet<br />
Gynecol Rprod Biol 2001; 95:22-36.<br />
3. Redman CWG. Drugs, hypertension and pregnancy. In:<br />
Studd J, editor. Progress in Obstetrics and Gynaecology.<br />
<strong>Vol</strong>. 9. Edinburgh: Churchill Livingstone; 1991. p. 83-<br />
97.<br />
4. Bolte AC, Geijn HPV, Dekker GA. Management and<br />
monitoring of severe preeclampsia. Eur J Obstet<br />
Gynecol Reprod Biol 2001; 96:8-20.<br />
5. Johansen PL. Pharmacology of combined alpha-beta<br />
blockade.II. Hemodynamic effects of labetalol. Drugs<br />
1984; 28:35-50.<br />
6. Mabie WC, Gonzalez AR, Sibai BM, Amon E. A<br />
comparative trial of labetalol and hydralazine in the<br />
acute management of severe hypertension complicating<br />
pregnancy. Obstet Gynecol 1987; 70:328-333.<br />
7. Mahmoud TZ, Bjornsson S, Calder AA. Labetalol<br />
therapy in pregnancy induced hypertension: the effects<br />
on fetoplacental circulation and fetal outcome. Eur J<br />
Obstet Gynecol Reprod Biol 1993; 50:109-113.<br />
8. Greer IA, Walker JJ, Mc Laren M, Calder AA, Forbes CD.<br />
A comparative study of the effects of adrenoreceptor<br />
antagonists on platelet aggregation and thromboxane<br />
generation. Thromb Haemost 1985; 54:480-484.<br />
9. Michael CA. Early fetal lung maturation associated<br />
with labetalol therapy. Singapore J Obstet Gynaecol<br />
1980; 11:2-5.<br />
10. Management of preeclampsia, ACOG Technical<br />
Bulletin No.219, February, 1996. The American College<br />
of Obstetricians and Gynecologists, Washington, DC.<br />
11. Ales K. Magnesium plus nifedipine. Am J Obstet<br />
Gynecol 1990; 162:288.<br />
12. Brown MA, Buddle ML. Hypertension in pregnancy:<br />
maternal and fetal outcomes according to laboratory<br />
and clinical features. Med J Aust 1996; 165:360-365.<br />
13. Lewis G, Drife J. Why Mothers Die 1997-1999: The<br />
fifth report of the Confidential Enquiries into Maternal<br />
Deaths in the United Kingdom. London: RCOG Press,<br />
2001.<br />
14. Rey E, Lelorier J, Burgess E, Lange IR, Leduce L. Report<br />
of the Canadian Hypertension Society Consensus<br />
Conference: Pharmacologic treatment of hypertensive<br />
disorders in pregnancy. CMAJ 1997; 157:1245-1254.<br />
15. Report of the National High Blood Pressure Education<br />
Program Working Group on High Blood Pressure in<br />
Pregnancy. Am J Obstet Gynecol 2000; 183:S1- S22.<br />
16. Brown MA, Hague WM, Higgins J, et al. Australian<br />
Society for the Study of Hypertension in Pregnancy.<br />
The detection, investigation and management of<br />
hypertension in pregnancy: executive summary. Aust<br />
NZ J Obstet Gynecol 2000; 40:133-138.<br />
17. Michael CA. Intravenous labetalol and intravenous<br />
diazoxide in severe hypertension complicating<br />
pregnancy. Aust NZ J Obstet Gynecol 1986; 26:26-29.<br />
18. Michael CA. Use of labetalol in the treatment of severe<br />
hypertension during pregnancy. Br. J Clin Pharmacol<br />
1979; 8:211S-215S.<br />
19. Aali BS, Nijad SS. Nifedipine or hydralazine as a<br />
first line agent to control hypertension in severe preeclampsia.<br />
Acta Obstet Gynecol Scand 2002; 81:25 -30.<br />
20. Vermillion ST, Scardo JA, Newsman RB, Chauhan SP.<br />
A randomized, double blind trial of oral nifedipine and<br />
intravenous labetalol in hypertensive emergencies of<br />
pregnancy. Am J Obstet Gynecol 1999; 181:858-861.<br />
21. Wachter RM. Symptomatic hypotension induced by<br />
nifedipine in the acute treatment of severe hypertension.<br />
Arch Intern Med 1987; 147:556-558.<br />
22. O’ Malia JJ, Sander GE, Giles TD. Nifedipine associated<br />
myocardial ischemia or infarction in the treatment of<br />
severe hypertension. Arch Intern Med 1987; 147:556-<br />
558.<br />
23. Scardo JA, Vermillion ST, Newman RB, Chauhan SP,<br />
Hogg BB. A randomized, double-blind, hemodynamic<br />
evaluation of nifedipine and labetalol in pre-eclamptic<br />
hypertensive emergencies. Am J Obstet Gynecol 1999;<br />
181:862-866.<br />
24. Raheem IA, Saaid R, Omar SZ, Tan PC. Oral nifedipine<br />
versus intravenous labetalol for acute blood pressure<br />
control in hypertensive emergencies of pregnancy: a<br />
randomized trial. Br J Obstet Gynecol <strong>2012</strong>; 119:78-85.<br />
25. Papatsonis DN, Lok CA, Bos JM, Geijn HP, Dekker<br />
GA. Calcium channel blockers in the management of<br />
preterm labor and hypertension in pregnancy. Eur J<br />
Obstet Gynecol Reprod Biol 2001; 97:122-140.<br />
26. B<strong>org</strong>i C, Esposti DD, Cassani A, Immordino V, Bovicelli<br />
L, Ambrosioni E. The treatment of hypertension in<br />
pregnancy. J Hypertens Suppl 2002; 20:S52-56.<br />
27. Magee LA, Miremadi S, Li J, et al. Therapy with both<br />
magnesium sulphate and nifedipine does not increase<br />
the risk of serious magnesium related maternal side<br />
effects in women with preeclampsia. Am Obstet<br />
Gynecol 2005; 193:153-163.<br />
28. Magee LA, von Dadelszen P. The management of severe<br />
hypertension. Semin Perinatol 2009; 33:138-142.<br />
29. Podymow T, August P. Hypertension in pregnancy.<br />
Adv Chronic Kidney Dis 2007; 14:178-190.<br />
30. Podymow T, August P. Antihypertensive drugs in<br />
pregnancy. Semin Nephrol 2011; 31:70-85.
291<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Original Article<br />
Total Hip Replacement in Nigeria: A Preliminary Report<br />
Nwadinigwe Cajetan Uwatoronye, Anyaehie Udo Ego, Katchy Uchenna Amaechi<br />
National Orthopedic Hospital, Enugu (NOHE), Nigeria<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 291 - 296<br />
ABSTRACT<br />
Objectives: The first total hip replacement (THR) in Nigeria<br />
was performed in 1974. But due to infrastructural decay in<br />
public institutions, arthroplasty outcome was poor. National<br />
Orthopedic Hospital, Enugu (NOHE) - a regional trauma<br />
and orthopedic centre took the initiative in 2008. This paper<br />
presents our preliminary results and lists our challenges in<br />
establishing this service in a resource- constrained economy.<br />
Design: Prospective<br />
Setting: NOHE, Nigeria<br />
Subjects: Fifty-two patients who had primary hip arthroplasty<br />
between November 2008 and November 2010<br />
Method: Details of demographic data, joints affected,<br />
etiology, co-morbidities, anesthesia, postoperative treatment,<br />
complications, and follow-up were recorded, analyzed and<br />
challenges noted<br />
Intervention : Total hip replacement<br />
Main Outcome Measures: Improvement in patient’s function<br />
and re-operation rate<br />
Result: Fifty-four THRs were done in fifty-two patients.<br />
Twenty nine (53.7%) patients were male. The mean age<br />
was 52 ± 2.4 years. Two patients had staged bilateral hip<br />
replacement. Twenty five (48.1%) patients had primary<br />
osteoarthritis. The commonest complaint at presentation<br />
was incapacitating hip pain. Half of the patients 26 (49.9%)<br />
had this pain for over four year. Trauma related secondary<br />
arthritis was responsible for 21 cases and old unreduced hip<br />
dislocation in five (9.6%) patients. Six patients had previous<br />
hip surgeries. Implant dislocation occurred in three (5.5%)<br />
patients. The functional status improved in all patients as<br />
shown by Harris Hip scores.<br />
Conclusion: There is an absolute need to develop arthroplasty<br />
service in Nigeria. A good number of the cases were complex<br />
primary arthroplasties. Most of the patients were relatively<br />
young and will outlive their implant.<br />
KEY WORDS: depressed economy, hip arthroplasty, Nigeria<br />
INTRODUCTION<br />
Total hip replacement (THR) is undoubtedly the<br />
most successful procedure in orthopedics [1] . It brings<br />
a new lease of life by pain relief and improvement in<br />
hip function in patients with advanced ostheoarthritis<br />
when conservative management has failed.<br />
Since the work of Sir John Charnley on the hip<br />
arthroplasty in 1960’s, a lot of advances have been seen<br />
in this field of orthopedics [2,3] . The first THR in Nigeria<br />
was performed in 1974 at the University of Nigeria<br />
Teaching Hospital, Enugu. But due to sustained<br />
infrastructural decay in public institutions, the specialty<br />
of arthroplasty was poorly developed even though<br />
indications were there. Hitherto, few patients (who<br />
could afford it) were referred abroad. This practice over<br />
the years was associated with many problems; huge<br />
capital flight, poor patient follow-up and persistent<br />
underdevelopment of the specialty. The vast majority<br />
of patients with end stage osteoarthritis (OA) were<br />
either left to live with their pain and deformity or were<br />
offered arthrodesis or excision arthroplasty.<br />
National Orthopedic Hospital, Enugu (NOHE) - a<br />
regional trauma and orthopedic training center took<br />
the initiative in 2008. To the best of our knowledge, no<br />
coordinated institutional arthroplasty center exists in<br />
Nigeria. The objectives of this paper were to present<br />
our preliminary results and to share our challenges<br />
in establishing this service in a resource- constrained<br />
economy.<br />
SUBJECTS AND METHODS<br />
This was a prospective study of 54 consecutive<br />
THRs done from November 2008 to November 2010.<br />
Details such as demographic data, joints affected,<br />
etiology, co-morbidities, anesthesia, postoperative<br />
treatment, complications, and follow-up were collected<br />
prospectively. The functional level of each patient<br />
was assessed pre and postoperatively, at six months<br />
Address correspondence to:<br />
Dr C U Nwadinigwe, FWACS (Orth), P O Box 927 Enugu, 400001, Enugu State, Nigeria. Tel: +2348037083917,<br />
E-mail: cunwadinigwe@yahoo.co.uk
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 292<br />
and one year using Harris hip score. All patients had<br />
preoperative and immediate postoperative X-ray<br />
evaluation. The pre- operative X-rays were classified<br />
based on Kellgren and Lawrence scale for primary<br />
osteoarthritis and Ficat and Arlet for avascular<br />
necrosis (AVN). The X-ray evaluation was repeated<br />
at three months, six months and one year follow-up<br />
as the case may be. All the operations were through<br />
anterolateral approach. The implant consisted of<br />
hydroxyapetite coated titanium femoral stem, 28 mm<br />
cobalt based alloy head and 28 mm UHMWP on<br />
metal shell (Corail Duraloc, DePuy International). All<br />
patients received prophylatic antibiotics - ceftriazone<br />
and metronidazole. Enoxaparin 40 mg daily for five<br />
days and compression bandaging were used for<br />
deep vein thrombosis (DVT) prophylaxis and the<br />
patients were mobilized on the first day post surgery.<br />
The major outcome measures were improvement in<br />
patient’s function and reoperation rate. Data analysis<br />
was done with SPSS software version 11. Descriptive<br />
statistics are provided. The study was approved by<br />
ethical committee of the hospital.<br />
Table 1: Duration of symptoms<br />
Duration of symptom<br />
Pain < 1 year<br />
Pain 1 - 3 years<br />
Pain 4 - 6 years<br />
Pain 7 - 10 years<br />
Pain > 10 years<br />
Frequency<br />
n (%)<br />
3 (5.8)<br />
23 (<strong>44</strong>.2)<br />
10 (19.2)<br />
11 (21.1)<br />
5 (9.6)<br />
bilateral total hip replacements within three months.<br />
Twenty-nine (53.7%) were male while 25 (46.2%) were<br />
female, giving a male to female ratio of 1.2:1 (Fig. 1).<br />
Their ages ranged from 18 to 78 years with an overall<br />
mean of 52 ± 2.4 years (Table1). Twenty-four were on<br />
the left side and 30 on the right side.<br />
The most common complaint at presentation was<br />
incapacitating joint pain. About half the patients (26,<br />
49.9%) had this pain for over four years (Table 1).<br />
Table 2: Etiology<br />
Diagnosis<br />
Frequency<br />
n (%)<br />
Primary osteoarthritis<br />
Post-traumatic fracture<br />
Unreduced dislocation<br />
Dysplastic hip<br />
Sickle cell disease with avascular necrosis of head<br />
of femur<br />
Total<br />
25 (48.1)<br />
16 (30.8)<br />
5 (9.6)<br />
2 (3.8)<br />
4 (7.7)<br />
52<br />
Fig. 1: Genderwise distribution of patients<br />
RESULTS<br />
A total of 54 total hip replacement surgeries were<br />
done in 52 patients in two years. All the patients were<br />
pooled in a unit to create volume. Two patients had<br />
Twenty-five (48.1%) patients had primary<br />
osteoarthritis that had progressed to advanced stage 4<br />
(Kellgen and Lawrence scale) (Fig. 2). Trauma related<br />
secondary arthritis was responsible for 21 (40.4%)<br />
cases with poorly managed hip fractures accounting<br />
for 16 (30.8%) cases and old unreduced hip dislocation<br />
accounting for five (9.6%) cases (Table 2). Three of<br />
the patients with poorly managed hip fractures had<br />
failed angle blade plates. A total of six patients had<br />
previous hip surgeries (Table 3). The five patients<br />
Fig. 2a, b: Bilateral severe OA hip<br />
a<br />
b
293<br />
Total Hip Replacement in Nigeria: A Preliminary Report<br />
<strong>December</strong> <strong>2012</strong><br />
Table 3: Previous interventions<br />
Procedure<br />
Girdlestone excision arthroplasty<br />
Angle blade plating<br />
Hemiarthroplasty<br />
Frequency<br />
(n)<br />
2<br />
3<br />
1<br />
Fig. 3a: SCD with bilateral AVN: pre-operative X-ray<br />
Fig. 3b: SCD with bilateral AVN (immediate post-operative X-<br />
ray)<br />
with old unreduced posterior hip dislocation had<br />
posterior wall defect and false acetabulum. All cases<br />
presented to our center more than one year after initial<br />
injury and treatment by traditional bone setters with<br />
uncontained femoral heads; all underwent one-stage<br />
total hip arthroplasty. This group of patients was also<br />
younger with a mean age of 42 ± 2.3 years.<br />
Avascular necrosis of the head of femur from sickle<br />
cell disease was noted in four (7.7%) patients. They<br />
were all stage IV (Ficat and Arlet staging, Fig. 3). Their<br />
mean age was 28 ± 3.4 years. All the sicklers had dense<br />
bone sclerosis and near obliteration of the proximal<br />
femoral medullary canal intraoperatively. One patient<br />
had femoral perforation during reaming. We did not<br />
observe painful postoperative sickling crises. All<br />
patients had oxygen saturation monitored during the<br />
surgery.<br />
Patients had an average pre-operative Harris hip<br />
score of 45 (range of 35 - 47). Twenty-three patients had<br />
co-morbidities. The most common associated medical<br />
problem was uncontrolled hypertension in 14 patients.<br />
The others were diabetes mellitus in four, asthma in<br />
one and peptic ulcer disease in four patients. All the<br />
co-morbidities were well-controlled with medication<br />
before the THR.<br />
Regional block was employed in all the surgeries<br />
except in five cases of failed spinal which were then<br />
converted to general anesthesia. Intra-operative blood<br />
loss varied from 400 ml – 1000 ml (mean blood loss<br />
800 ml). Five patients received intraoperative blood<br />
transfusion, while seven others had postoperative<br />
blood transfusion in the ward.<br />
All the patients were given intravenous antibiotics,<br />
ceftriaxone and metronidazole for five days. They<br />
also received parenteral analgesics for 48 hours before<br />
shifting to oral drugs. Enoxaparin 40 mg daily was<br />
given for five days and compression bandaging was<br />
used for DVT prophylaxis and the patients were<br />
mobilized on the first day post surgery.<br />
The most important complication observed was<br />
implant dislocation in three (5.5%) patients. This<br />
was due to component mal-positioning. Two hips<br />
dislocated while in the hospital and one at home. Three<br />
of them had component repositioning and remained<br />
stable (Table 4).<br />
Table 4: Complications<br />
Complications<br />
Post spinal headache<br />
Superficial wound infection- stitch sinus<br />
Dislocated implant<br />
Trochanteric fracture<br />
Pneumonia<br />
Frequency<br />
n (%)<br />
10 (18.5)<br />
4 (7.4)<br />
3 (5.6)<br />
1 (1.9)<br />
2 (3.7)<br />
Thirty one patients were discharged in the second<br />
week after surgery while the remaining twenty-one<br />
were discharged in the third week. In this group of<br />
patients, due to a longstanding pathology, rehabilitation
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 294<br />
was slow. They were discharged on partial weight<br />
bearing with bilateral axillary crutches.<br />
Follow up is on-going. Harris hip score at six<br />
months and one year post surgery improved to 90 in<br />
thirty five patients and 80 - 89 in seventeen patients.<br />
Most of them were satisfied with their progress so far.<br />
There was no mortality recorded.<br />
DISCUSSION<br />
Total joint replacement is a well-established<br />
procedure for the hip joint in the developed world.<br />
Although other joints have been replaced with variable<br />
outcome, hip replacement has been adjudged the most<br />
successful orthopedic operation [1] .<br />
In Nigeria, THR is at its infancy [4] although the first<br />
THR in Nigeria was done in 1974. The subspecialty<br />
could not advance due to sustained infrastructural<br />
decay in public institutions and the huge capital<br />
overlay made it an impossible venture for most private<br />
practitioners. Nigeria is a country of 150 million people<br />
with varying health needs. In this study, our patient<br />
population was a mixed bag of primary osteoarthritis<br />
(OA), post- traumatic secondary OA, sickle cell disease<br />
(SCD) etc., and they were relatively young.<br />
We found the mean age of our patients to be 52 ±<br />
2.4 years (range 18 - 78 years) .The import of having<br />
relatively younger patients is that many of them will<br />
outlive their implant and require revision. It has been<br />
shown that patients younger than 50 years at the time<br />
of surgery have a greater chance of requiring a revision<br />
than of dying; those around 58 years of age have a<br />
50:50 chance of needing a revision and in those older<br />
than 62 years the prosthesis will normally outlast the<br />
patient. Patients over 77 years old have a greater than<br />
90% chance of dying than requiring a revision whereas<br />
those around 47 years are on an average twice more<br />
likely to require a revision than die [5] . What this means<br />
for our region is that revision surgery should develop<br />
alongside primary arthroplasty.<br />
Trauma is a known cause of morbidity and mortality<br />
in people under sixty years of age. In our environment<br />
there are many confounding factors to effective trauma<br />
care. Topmost among them are poverty, influence<br />
of traditional bone setters and faith healers. These<br />
were major reasons why hip dislocations were left<br />
unreduced for a reasonable length of time as observed<br />
in the study (Fig. 4).<br />
SCD is prevalent in Nigeria [6] . Children with SCD<br />
were hitherto regarded as curse from the ‘spirit world’<br />
and therefore were not adequately cared for. But with<br />
better understanding and awareness of genetic basis<br />
for this condition and improvement in their care<br />
some are surviving into adulthood. For these young<br />
SCD patients, development of AVN of the hip is one<br />
of the most limiting factors in their lives in terms of<br />
pain, level of activity, and function. We observed this<br />
in our cases. The treatment of these young patients is<br />
therefore, particularly important not only for socioeconomic<br />
and humanitarian reasons, but also because<br />
of their improved life expectancy [7,8] . The cases in this<br />
study had severe adductor contractures. In addition,<br />
sclerotic proximal femur made reaming very difficult<br />
and could hardly accept anything above size 8 stem.<br />
Those who may have this patient population must<br />
be aware of this and make adequate arrangement for<br />
different implant sizes.<br />
Primary OA was a common etiological factor, but<br />
not as common as in studies from the western world [8] .<br />
A number of factors may be responsible for this;<br />
Nigeria, although an oil producing country ranks low<br />
in human development index - life expectancy is low<br />
(47.56 years), and far below the usual age for primary<br />
osteoarthritis; high illiteracy rate results in lack of<br />
awareness about availability of service and low gross<br />
Fig. 4a & b: Old unreduced hip dislocation
295<br />
Total Hip Replacement in Nigeria: A Preliminary Report<br />
<strong>December</strong> <strong>2012</strong><br />
national income per capita of $2,069 compared to the<br />
cost of arthroplasty [9] . These factors either collectively<br />
or singly may account for the low number. Some of the<br />
patients with primary OA have some features of AVN<br />
from prolonged steroid ingestion to relieve pain.<br />
We observed male preponderance in this study.<br />
This is different from reports in literatures which show<br />
female preponderance [8] . There is scepticism on the<br />
part of our female folks on new procedures especially<br />
when it entails excision of a part and replacement with<br />
a foreign material.<br />
Pain relief is the primary indication for THR [4] . In<br />
this study, pain was the most common indication for<br />
surgery. Most of our patients were virtually on daily<br />
non-steriodal anti-inflammatory drugs for over four<br />
years. This was at a great cost for the four patients that<br />
developed peptic ulcer disease.<br />
Simultaneous arthroplasties are increasingly being<br />
performed during one single anesthetic event [10] . Two<br />
patients in this study had bilateral arthroplasty as<br />
staged operations. We were particularly worried about<br />
the effect of prolonged anesthesia and wound infection.<br />
The interval between the operations was three months.<br />
This was particularly beneficial to the patients who<br />
paid out of their pockets.<br />
Regional (spinal) anesthesia was generally welltolerated.<br />
This is particularly useful in the resourcescarce<br />
environment that we worked in; however, the<br />
incidence of post-spinal headache was high. This is<br />
similar to other reports [11] .<br />
We gave all our patients extended antibiotic therapy<br />
for two reasons. We were ‘paranoid’ about infection.<br />
Our theatre does not have laminar air- flow system and<br />
the same theatre is used for routine clean orthopedic<br />
cases. We believe that in addition to the general<br />
measures of ensuring clean theatre environment, 3 - 4<br />
days antibiotic therapy is necessary until the procedure<br />
is well-standardized and facilities upgraded. No case<br />
of serious infection was observed in the cases so far.<br />
Also, the length of hospital stay was long. A number<br />
of reasons were responsible for this. We were unsure of<br />
the home environment for most patients. The team of<br />
physiotherapists needed the time to guide the patients<br />
before discharge. Secondly, some of the difficult case<br />
had marked muscle wasting and required considerable<br />
time for rehabilitation post operation.<br />
The need for deep vein thrombosis (DVT)<br />
surveillance and prophylaxis is well established in<br />
THR. However, the critical issue is the duration [12] . We<br />
gave our patients enoxaparin 40 mg daily for five days<br />
and continued with compression bandaging and lowdose<br />
aspirin. This corresponds to the time most of them<br />
were fully ambulant. The reason for this short duration<br />
regime was cost. We observed no case of overt DVT.<br />
This was surprisingly similar to the low incidence<br />
reported in other studies with extended duration of<br />
treatment [13] , but quite different from studies in the<br />
African-Americans [14] . References on the incidence of<br />
venous thrombo-embolism (VTE) among the blacks are<br />
commonly taken from studies on African- Americans,<br />
because there is dearth of studies among the native<br />
sub-Saharan black Africans. Our observation may be<br />
due to a number of factors. Immobility remains one<br />
of the most important factors for the development<br />
of DVT. Preoperatively, all our patients maintained<br />
their mobility despite extreme pathology and they<br />
were able to mobilize within the first two days post<br />
surgery. Secondly, most of our patients continued with<br />
low dose aspirin and compression bandaging even<br />
after enoxaparin was discontinued. Although there<br />
is strong evidence that the prevalence of VTE varies<br />
significantly among different ethnic / racial groups,<br />
the genetic, physiologic and clinical basis for these<br />
differences remain largely undefined [15] . Our finding<br />
supports the need to determine gene polymorphisms<br />
associated with VTE in Africans [16] .<br />
Posterior implant dislocation was the only major<br />
adverse event recorded and the only reason for reoperation<br />
in two patients and re-admission and reoperation<br />
in one patient. It was noted that the patients<br />
whose implants dislocated were those that had old<br />
unreduced posterior dislocation of the hip with<br />
posterior wall defect and false acetabulum as well. No<br />
mortality was recorded in this study supporting the<br />
low mortality rate associated with this procedure [17] .<br />
Technical difficulties encountered were due to<br />
the fact that our patients presented very late and so<br />
had bone defects, contractures about the joint, disuse<br />
muscles atrophy, limb length discrepancy, etc. The<br />
contractures make for difficult surgery with need to<br />
do a lot of soft tissue releases, thereby increasing post<br />
operative blood loss and operating time.<br />
Some patients who had prior surgeries like<br />
girdlestone arthroplasty or had hardware in situ<br />
following a failed internal fixation of proximal femoral<br />
fracture presented a lot of surgical challenges. Indeed,<br />
some of these cases qualify for revision or complex<br />
primary arthroplasty. As reported by Sathappan,<br />
complex primary total hip arthroplasty (THA) is<br />
defined as primary THA in patients with compromised<br />
bony or soft-tissue states, including but not limited<br />
to dysplastic hip, ankylosed hip, prior hip fracture,<br />
protrusio acetabuli, certain neuromuscular conditions,<br />
skeletal dysplasia, and previous bony procedures<br />
about the hip [18] .<br />
For the conversion of Girdlestone excision<br />
arthroplasty to THR, locating the original acetabulum<br />
without image intensifier was technically challenging.<br />
The dense fibrous tissue was also very bloody. This<br />
could therefore, be regarded as a revision hip.<br />
Conversion to total hip arthroplasty is generally<br />
accepted as the most successful procedure for failure
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 296<br />
of fixation devices in hip fractures [19] . All the affected<br />
patients had a one stage procedure: implant removal<br />
and THR.<br />
Some of the cases had major bone defect that<br />
required bone grafting. In absence of a bone bank, we<br />
overcame this problem by morselizing whatever is left<br />
of the femoral head, which in some cases was badly<br />
degenerated and collapsed.<br />
Blood loss during surgery is often related to the<br />
difficulties encountered. Significant proportion of<br />
our cases was complex primary and six of them had<br />
previous surgical intervention with dense fibrosis.<br />
The average blood loss (both intra-operative and postoperative<br />
period) for our patients was 800 ml. This<br />
compares favourably with values in the literature [20] .<br />
CONCLUSION<br />
There is an absolute need to sustain the development<br />
of arthroplasty service in Nigeria as shown by the<br />
variety of cases presented. A good number of the<br />
cases are complex primary arthroplasty and most of<br />
the patients are relatively young and will outlive their<br />
implant and therefore, require revision. Therefore,<br />
in addition to development of primary procedures,<br />
investment in capacity building for revision procedures<br />
should be started now to bridge the gap.<br />
ACKNOWLEDGMENT<br />
The authors are grateful to the Medical Director, Dr<br />
CB Eze, who made it possible for the development of<br />
this new speciality at the NOHE. Also, we own a debt of<br />
gratitude to Dr Sam Ora<strong>kw</strong>e, Dr Ike Nwachu<strong>kw</strong>u and<br />
Johnson & Johnson for providing the initial technical<br />
support.<br />
Conflict of interest: The authors do not have any<br />
financial relationship with any of the companies<br />
manufacturing any of the products mentioned in this<br />
study. It was not supported by external funding of any<br />
sort.<br />
REFERENCES<br />
1. Berry DJ, Harmsen WS, Cabanela ME, Morrey BF.<br />
Twenty-five year survivorship of two thousand<br />
consecutive primary Charnley total hip replacements:<br />
Factors affecting survivorship of acetabular and femoral<br />
components. J Bone Joint Surg Am 2002; 84:171-177.<br />
2. HarrisWH. Advances in total hip arthroplasty:<br />
The metal-backed acetabular component.Clinical<br />
Orthopedics & Related Research 1984; 18:4-11.<br />
3. Seyler TM, Cui Q, Mihalko WM, Mont MA, Saleh<br />
KJ. Advances in hip arthroplasty in the treatment of<br />
osteonecrosis. Instr Course Lect 2007; 56:221-33.<br />
4. Ugbeye ME, Odunubi OO. Knee Replacement: a<br />
preliminary report of thirteen (13) cases at NOHI.<br />
Nigerian Journal of Orthopedics and Trauma: 2009; <strong>Vol</strong><br />
8(2). Available at http://www.ajol.info/index.php/<br />
njotra/article/view/48304<br />
5. Wainwright C, Theis JC, Garneti N, Melloh M. Age at hip<br />
or knee joint replacement surgery predicts likelihood of<br />
revision surgery. J Bone Joint Surg 2011; 93:1411-1415.<br />
6. Akinyoola AL, Adediran IA, Asaleye CM. Avascular<br />
necrosis of the femoral head in sickle cell disease in<br />
Nigeria: a retrospective study. Nig Postg Med J 2007;<br />
14:217-220.<br />
7. Hernigou P, Zilber S, Filippini P, Mathieu G, Poignard A,<br />
Galacteros F. Total THA in adult osteonecrosis related to<br />
sickle cell disease. Clin Orthop Relat Res 2008; 466:300-<br />
308.<br />
8. Liu Y E B, Hu S, Chan S P, Sathappan SS. The<br />
epidemiology and surgical outcomes of patients<br />
undergoing primary total hip replacement: an Asian<br />
perspective. Singapore Med J 2009; 50: 15.<br />
9. International Human Development Indicators – United<br />
Nations Development Programme. Available at: http://<br />
hdrstats.undp.<strong>org</strong>/en/countries/profiles/NGA.html<br />
10. Huotari K, Lyytikäinen O, Seitsalo S. Patient outcomes<br />
after simultaneous bilateral total hip and knee joint<br />
replacements J Hosp Infect 2007; 65:219-225.<br />
11. Macfarlane AJR, Prasad GA, Chan VWS, Brull R. Does<br />
regional anaesthesia improve outcome after total hip<br />
arthroplasty? A systematic review. Br J Anaesth 2009;<br />
103;335-345.<br />
12. Turpie AG. Extended duration of thromboprophylaxis<br />
in acutely ill medical patients: optimizing therapy? J<br />
Thromb Haemost 2007; 5:5-11.<br />
13. Jain V, Dhaon B, Jaiswal A, Nigam V, Singla J. Deep<br />
vein thrombosis after total hip and knee arthroplasty in<br />
Indian patients. Postgrad Med J 2004; 80:729-731.<br />
14. Heit JA, Beckman MG, Bockenstedt PL, et al. Comparison<br />
of characteristics from white and black Americans with<br />
venous thromboembolism: a cross-sectional study. Am<br />
J Hematol 2010; 85:467-471.<br />
15. Dowling NF, Austin H, Dilley A, Whitsett C, Evatt<br />
BL Hooper WC. The epidemiology of venous<br />
thromboembolism in Caucasians and African-<br />
Americans: the GATE Study. J Thromb Haemost 2003;<br />
1:80-87.<br />
16. White RH, Keenan CR. Effects of race and ethnicity on<br />
the incidence of venous thromboembolism. Thromb<br />
Res 2009; 123:S11-17.<br />
17. Hamel MB, Toth M, Legedza A, Rosen MP. Joint<br />
replacement surgery in elderly patients with severe<br />
osteoarthritis of the hip or knee: Decision making,<br />
postoperative recovery, and clinical outcomes. Arch<br />
Intern Med 2008; 168:1430-1<strong>44</strong>0.<br />
18. Sathappan SS, Strauss EJ, Ginat D, Upasani V, Di Cesare<br />
PE. Surgical challenges in complex primary total hip<br />
arthroplasty. Am J Orthop (Belle Mead NJ) 2007; 36:534-<br />
5341.<br />
19. Winemaker M, Gamble P, Petruccelli D, Kaspar S, de<br />
Beer J. Short term outcomes of total hip arthroplasty<br />
after complications of open reduction internal fixation<br />
of hip fracture. J Arthroplasty 2006; 21:682-688.<br />
20. Sehat KR, Evans R L, Newman JH. Hidden blood<br />
loss following hip and knee arthroplasty: Correct<br />
management of blood loss should take hidden loss into<br />
account. J Bone Joint Surg (Br) 2004; 86:561-565.
297<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Original Article<br />
Towards Prevention of Diabetes in Offsprings<br />
of Type 2 Diabetic Patients<br />
Amal I El-Sharakawy, Abdulrahman A Abdulla, Fatimah Bendhifari<br />
Al-Yarmouk Health Center, Kuwait<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 297 - 302<br />
ABSTRACT<br />
Objectives: To reveal the extent of advice given about<br />
prevention of diabetes by diabetic parents to their children<br />
who had not developed diabetes yet, and reveal its relation<br />
to risk perception, and other parental factors related to<br />
diabetes<br />
Design: Observational cross-sectional prospective<br />
Setting: Al-Yarmouk Primary Health Care Center, Kuwait<br />
Subjects and Methods: Two hundred type 2 diabetic patients<br />
with non-diabetic children were recruited for this study. A<br />
self-administered questionnaire was used to collect data.<br />
Main Outcome Measure: The nature of advice given by<br />
diabetic parents to their non-diabetic children about adopting<br />
a healthy lifestyle to prevent or delay onset of diabetes<br />
Results: Only 40.5% of diabetic patients advised their children<br />
to adopt a healthy behavior that may prevent development<br />
of type 2 diabetes. Giving advice was significantly associated<br />
with young age, not suffering from complications related to<br />
diabetes, recognizing the importance of giving advice and<br />
identifying unbalanced diet as a risk for diabetes. More than<br />
half the studied group recognized lack of exercise (63%),<br />
overeating (70%), and heredity (56.5%) as etiological factors<br />
for diabetes, while 48% recognized unbalanced diet, and only<br />
3% could recognize the risk of diabetes among offspring.<br />
Conclusion: A comprehensive behavioral, social, and physical<br />
environment approach is required to improve risk perception<br />
of etiological factors of type 2 diabetes especially unbalanced<br />
diet, to enable parents to provide an advice to their children<br />
about healthy behavior needed to prevent diabetes.<br />
KEY WORDS: healthy behavior, obesity, parent-child-relation, primary prevention<br />
INTRODUCTION<br />
Diabetes (DM) is considered a major public health<br />
problem not only because of its association with<br />
multiple medical complications, but also because of<br />
a continuously alarming rise in prevalence rate [1] . Its<br />
impact extends beyond the individual to affect health<br />
systems, social systems, and greatly undermines the<br />
economic resources of the whole country. The highest<br />
increase in the rates of the disease is observed mainly<br />
in the rapidly developing countries as the disease is<br />
mainly associated with changes in lifestyles, economic<br />
development and population growth [2] . Recent studies<br />
in Kuwait reveal a prevalence rate of 14.6%. During<br />
2010, Kuwait ranked seventh for diabetes prevalence<br />
among the 216 countries for which data are available<br />
all over the world [3] . What adds to the complexity of<br />
the problem is the reported finding by the International<br />
Diabetes Federation (IDF) that an estimated 93.9%<br />
increase in the rates of DM in the Middle East-North<br />
Africa region during the period 2010-2030 is expected [3] .<br />
The high prevalence of type 2 diabetes in Kuwait, as<br />
well as other countries of Co-operation Council for<br />
the Arab States of the Gulf (GCC), is associated with<br />
higher prevalence of risk factors for this disease.<br />
Multiple risk factors interact to lead to development<br />
of type 2 diabetes. These factors involve mainly genetic<br />
and environmental factors. One primary risk factor is<br />
a family history of diabetes. A considerable amount<br />
of evidence demonstrated that familial aggregation<br />
of diabetes is associated with an inherited defective<br />
gene that renders the individuals at a higher risk of<br />
diabetes [4] . Other environmental and behavioral risk<br />
factors suggested by the IDF include physical activity<br />
that is closely linked to overweight and obesity. Other<br />
non-modifiable factors included age, race, ethnicity,<br />
and gestational diabetes [5] .<br />
Efforts directed towards prevention or delaying<br />
onset of diabetes among the high-risk group depends<br />
mainly on changing or controlling the modifiable<br />
behavioral risk factors of type 2 diabetes, namely,<br />
amount of daily activity or exercise, balanced eating,<br />
and amount of daily consumed food [6] . Diabetic<br />
Address correspondence to:<br />
Amal El-Sharkawy, MRCGP, Al-Yarmouk Health Center, Kuwait. Tel: 96647465 (M), E-mail: mottazsharkawi2002@hotmail.com
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 298<br />
parents can play an important role in implementing<br />
the preventive programs dealing with these risk factors<br />
through communicating the concepts and importance<br />
of adopting these healthy behaviors to their children<br />
who are actually at a higher risk of developing type 2<br />
diabetes [7] . However, they have first to recognize the<br />
etiological factors of type 2 diabetes and then advise<br />
their children to adopt these behaviors [8] . Review<br />
of the available literature did not reveal any studies<br />
carried out in Kuwait on this subject. Thus the current<br />
study was planned to reveal the extent of giving advice<br />
about prevention of diabetes given by diabetic parents<br />
to their children who had not developed diabetes yet,<br />
and reveal its relation to recognizing the etiological<br />
risk factors, risk perception, and other parental factors<br />
related to diabetes.<br />
Study hypothesis<br />
Recognition by diabetic parents of etiological<br />
factors of diabetes and their risk perception as well as<br />
their physical health status would affect their ability to<br />
advise their children about adopting a healthy lifestyle<br />
to avoid development of diabetes.<br />
SUBJECTS AND METHODS<br />
An observational cross-sectional study design was<br />
adopted for this purpose. The study was carried out<br />
at the Al-Yarmouk Health Center, Kuwait. All patients<br />
with type 2 diabetes aged less than 75 years and having<br />
non-diabetic children aged between 20 and 50 years<br />
were candidates for this study. Those suffering from<br />
mental retardation were excluded. Out of all diabetic<br />
patients attending the health center, only those fulfilling<br />
the entry criteria were included. A total of 231 eligible<br />
diabetic patients were recruited during the study period.<br />
Out of these, 31 patients refused to share in the study<br />
giving a response rate of 86.6%. The study covered the<br />
period from <strong>December</strong> 2011 to April <strong>2012</strong>.<br />
Tools of the study<br />
A specially designed questionnaire was prepared<br />
for this study. It consisted of three parts. Part one dealt<br />
with socio-demographic characteristics of patients<br />
and included: age, sex, nationality, educational level,<br />
family history of diabetes, and living with offspring in<br />
the same house. Part two consisted of four questions<br />
in addition to measuring weight and height and<br />
calculation of body mass index. These four questions<br />
covered the physical status of the patient, namely,<br />
duration of diabetes, type and form of treatment,<br />
whether suffering from complications of diabetes,<br />
and hospitalization related to the disease. Part three<br />
of the questionnaire dealt with risk perception about<br />
diabetes. Four questions dealt with recognizing<br />
etiological factors of diabetes, namely, inactivity (lack<br />
of exercise), overeating, unbalanced diet and heredity.<br />
In addition one question dealt with risk of suffering<br />
from diabetes for offsprings with diabetic or nondiabetic<br />
parents. The main outcome question of this<br />
study was whether the parents actually advised their<br />
children to adopt a healthy lifestyle behavior. Their<br />
opinion about the necessity of giving their children<br />
an advice about adopting healthy behavior was also<br />
verified.<br />
A pilot study was carried out on 20 diabetic patients<br />
(not included in the final study) to test the clarity and<br />
applicability of the study tools.<br />
Data Management<br />
A pre-coded sheet was used. Data were fed to<br />
the computer directly from the questionnaire. The<br />
Excel program was used for data entry. Data entry<br />
was verified before analysis. Body mass index was<br />
calculated according to the following formula: weight<br />
[kg] / (height [meter]) 2 . The WHO recommendation for<br />
classification of BMI was adopted with the following<br />
cut off points: < 18.5 (underweight), 18.5 < 25 (normal<br />
weight), 25 < 30 (overweight), ≥ 30 (obese) [9] .<br />
Statistical analysis<br />
Before analysis; data were imported to the<br />
Statistical Package for Social Sciences (SPSS) version<br />
17 which was used for both data analysis and tabular<br />
presentation. The following statistical measures were<br />
utilized:<br />
Descriptive measures: count, percentage,<br />
arithmetic mean, and standard deviation<br />
Analytic measures: Mann-Whitney test was used<br />
for quantitative variables with non-normal distribution<br />
Table 1: Characteristics of studied diabetic patients<br />
Characteristics<br />
Sex<br />
Male<br />
Female<br />
Nationality<br />
Kuwaiti<br />
Non-Kuwaiti<br />
Educational certificate<br />
Less than secondary<br />
Secondary<br />
University<br />
Postgraduate (master/doctorate)<br />
Under insulin treatment<br />
Experiencing complications of diabetes<br />
Hospital admission related to diabetes<br />
Family history of diabetes<br />
Living with their offspring<br />
Mean (SD)<br />
Age in years<br />
Body mass index (kg/m 2 )<br />
Duration of diabetes in years<br />
n (%)<br />
84 (42.0)<br />
116 (58.0)<br />
151 (75.5)<br />
49 (24.5)<br />
83 (41.5)<br />
42 (21.0)<br />
70 (35.0)<br />
5 (2.5)<br />
45 (22.5)<br />
127 (63.5)<br />
<strong>44</strong> (22.0)<br />
159 (79.5)<br />
162 (81.0)<br />
56.4 (10.7)<br />
31.2 (6.6)<br />
8.6 (7.6)
299<br />
Towards Prevention of Diabetes in Offsprings of Type 2 Diabetic Patients<br />
<strong>December</strong> <strong>2012</strong><br />
Table 2: Attitude of diabetics and their actual provision of advice on diabetes prevention<br />
Attitude<br />
Is it necessary to advice offsprings on diabetes?<br />
Have you actually given advice about diabetes to your offspring?<br />
Yes<br />
n (%)<br />
133 (66.5)<br />
81 (40.5)<br />
No<br />
n (%)<br />
67 (33.5)<br />
119 (59.5)<br />
while Student t test was used for quantitative variables<br />
with normal distribution. Odds ratio (OR), 95% CI<br />
(confidence interval), and Mantel Haenszel Chi square<br />
were used for studying association. Also Chi square<br />
was used to compare qualitative variables of sociodemographic<br />
characteristics. Multiple logistic regression<br />
technique was used to identify significant predictors of<br />
advising offspring after adjusting for the confounding<br />
effect of other variables. The level of significance selected<br />
for this study was a p-value of ≤ 0.05.<br />
All the necessary approvals for carrying out the<br />
research were obtained. The Ethical Committee of the<br />
Kuwaiti Health Science Center and Kuwait Institute<br />
for Medical Specializations (KIMS) approved the<br />
research.<br />
RESULTS<br />
Table 1 shows characteristics of the studied<br />
population. The majority were female (58.0%),<br />
Kuwaiti (75.5%) holding less than a university<br />
certificate (65.6%). The mean age of the whole group<br />
was 56.4 ± 10.7 years, with a mean body mass index<br />
indicating obesity (31.2 + 6.6 kg/m 2 ), and suffering<br />
from diabetes for a mean period of 8.6 + 7.6 years.<br />
Most of the studied diabetics were living with their<br />
offspring (81.0%) and had a positive family history<br />
of diabetes (79.5%). Although, only 22.0% were<br />
receiving insulin yet 63.5% suffered from one or more<br />
complications of diabetes. Those admitted to hospital<br />
due complications of diabetes constituted 22.0% of<br />
the sample.<br />
Table 3: Relationship between giving advice about diabetes to offspring and parental factors<br />
Parental factors<br />
Yes<br />
n (%)<br />
No<br />
n (%)<br />
OR (95% CI)<br />
p-value<br />
Sex<br />
Male<br />
Female<br />
Nationality<br />
Kuwait<br />
Non-Kuwaiti<br />
Education<br />
University +<br />
< University<br />
Obese<br />
Yes<br />
No<br />
Under insulin treatment<br />
Yes<br />
No<br />
Experiencing complications of diabetes<br />
Yes<br />
No<br />
Hospital admission related to diabetes<br />
Yes<br />
No<br />
Family history of diabetes<br />
Yes<br />
No<br />
Living with their offspring<br />
Yes<br />
No<br />
Mean ± SD<br />
Age<br />
Duration of diabetes<br />
39 (46.4)<br />
42 (36.2)<br />
63 (41.7)<br />
18 (36.7)<br />
38 (50.7)<br />
43 (34.4)<br />
40 (38.1)<br />
41 (43.2)<br />
22 (48.9)<br />
59 (38.1)<br />
31 (24.4)<br />
50 (68.5)<br />
16 (36.4)<br />
65 (41.7)<br />
57 (35.8)<br />
24 (58.5)<br />
67 (41.4)<br />
14 (36.8)<br />
52.2 ± 8.7<br />
8.5 ± 7.7<br />
45 (53.6)<br />
74 (63.8)<br />
88 (58.3)<br />
31 (63.3)<br />
37 (49.3)<br />
82 (65.6)<br />
65 (61.9)<br />
54 (56.8)<br />
23 (51.1)<br />
96 (61.9)<br />
96 (75.6)<br />
23 (31.5)<br />
28 (63.6)<br />
91 (58.3)<br />
102 (64.2)<br />
17 (41.5)<br />
95 (58.6)<br />
24 (63.2)<br />
59.2 ± 11.1<br />
8.7 ± 7.6<br />
1.53 (0.86 - 2.71)<br />
-<br />
1.23 (0.63 - 2.39)<br />
-<br />
1.96 (1.09 - 3.51)<br />
-<br />
0.81 (0.46 - 1.43)<br />
-<br />
1.56 (0.79 - 3.04)<br />
-<br />
0.15 (0.08 - 0.28)<br />
-<br />
0.80 (0.40 - 1.59)<br />
-<br />
0.39 (0.19 - 0.79)<br />
-<br />
1.20 (0.58 - 2.51)<br />
-<br />
-<br />
-<br />
0.1471<br />
0.5376<br />
0.0236*<br />
0.4675<br />
0.1939<br />
< 0.001*<br />
0.5279<br />
0.0085*<br />
0.6107<br />
< 0.001<br />
0.959<br />
* Significant : p ≤ 0.05; OR = Odds ratio; CI = Confidence interval
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 300<br />
Table 4: Relationship between giving advice about diabetes to offspring and recognition of etiological factors<br />
Recognition of etiological factors<br />
Yes<br />
n (%)<br />
No<br />
n (%)<br />
OR (95% CI)<br />
p- value<br />
Lack of exercise<br />
Yes<br />
No<br />
Overeating<br />
Yes<br />
No<br />
Unbalanced diet<br />
Yes<br />
No<br />
Heredity<br />
Yes<br />
No<br />
Risk perception and advising<br />
Risk perception<br />
Yes<br />
No<br />
Necessary to give advice<br />
Yes<br />
No<br />
61 (48.4)<br />
20 (27.0)<br />
60 (42.9)<br />
21 (35.0)<br />
36 (37.5)<br />
21 (20.2)<br />
60 (53.1)<br />
28 (32.2)<br />
5 (85.7)<br />
75 (38.9)<br />
79 (59.4)<br />
2 (3.0)<br />
65 (51.6)<br />
54 (73.0)<br />
80 (57.1)<br />
39 (65.0)<br />
60 (62.5)<br />
83 (79.8)<br />
53 (46.9)<br />
59 (67.8)<br />
1 (14.3)<br />
118 (61.1)<br />
54 (40.6)<br />
65 (97.0)<br />
2.53 (1.36 - 4.71)<br />
-<br />
1.39 (0.74 - 2.61)<br />
-<br />
2.37 (1.26 - 4.46)<br />
-<br />
2.39 (1.33 - 4.27)<br />
-<br />
7.87 (0.90 - 68.66)<br />
-<br />
47.55 (11.16 - 202.49)<br />
-<br />
0.0030*<br />
0.3008<br />
0.0069*<br />
0.0032*<br />
0.0291*<br />
< 0.001*<br />
* Significant : p ≤ 0.05, OR = Odds ratio; CI = Confidence interval<br />
Table 2 reveals attitude of diabetics and their actual<br />
provision of advice to their offspring about prevention<br />
of diabetes. Just a total of 81 (40.5%) out of the studied<br />
diabetic subjects actually advised them about how to<br />
adopt preventive measures, while two thirds (66.5%)<br />
recognized that it is necessary to give advice to their<br />
offsprings.<br />
Table 3 portrays the relationship between giving<br />
advice about diabetes to offspring and parental<br />
factors. Those holding a university or higher certificate<br />
were more significantly likely to give advice to their<br />
offspring (OR = 1.96, 95% CI = 1.09 – 3.51, p = 0.0236).<br />
Those experiencing diabetic complications significantly<br />
tended not to advice their offspring as only 24.4% of<br />
them passed on this advice compared with 68.5% of<br />
those without complications (OR = 0.15, 95% CI =<br />
0.08 – 0.28, p < 0.001). The same trend was noticed for<br />
those with positive family history of diabetes as only<br />
35.8% of those with positive family history advised<br />
their offspring about diabetes prevention compared<br />
with 58.5% of those with negative family history of<br />
diabetes (OR = 0.39, 95% CI = 0.19 – 0.79, p = 0.0085).<br />
Diabetic patients giving advice to their offspring were<br />
significantly younger than those not giving advice<br />
(52.2 ± 8.7 compared with 59.2 ± 11.1 years, p < 0.001).<br />
Sex, obesity, regimen of treatment, hospital admission<br />
related to diabetes, living with offspring and duration<br />
of diabetes were not significantly associated with<br />
advising offspring about prevention of development<br />
of diabetes.<br />
Table 4 reveals the relationship between actually<br />
advising children about prevention of and recognition<br />
of etiological factors of diabetes. Univariate analysis<br />
showed that recognizing lack of exercise (OR = 2.53,<br />
95% CI = 1.36 – 4.71, p = 0.003), unbalanced diet (OR =<br />
2.37, 95% CI = 1.26 – 4.46, p = 0.0069), risk perception<br />
of diabetes (OR = 7.87, 95% CI = 0.90 – 68.66, p =<br />
0.0291), and necessity of giving advice about diabetes<br />
prevention to offspring (OR = 47.55, 95% CI = 11.16<br />
– 202.49, p < 0.001) are significantly associated with<br />
actually advising offsprings about diabetes. The only<br />
etiological factor that was not significantly associated<br />
with offspring advising was overeating (OR = 1.39, 955<br />
CI = 0.74 – 2.61, p = 0.3008).<br />
Table 5: Significant predictors of giving advice to offspring using stepwise forward likelihood multiple logistic regression<br />
Factor<br />
β Coefficient<br />
OR<br />
95% CI<br />
p-value<br />
Necessary to give advice to offspring<br />
Diabetes related complications<br />
Etiological recognition (Unbalanced diet)<br />
Age<br />
Constant<br />
23.60<br />
-1.48<br />
1.24<br />
-0.05<br />
-0.15<br />
23.60<br />
0.23<br />
3.46<br />
0.96<br />
-<br />
5.25 – 106.09<br />
0.10 – 0.50<br />
1.59 – 7.55<br />
0.91 – 0.99<br />
-<br />
< 0.001<br />
< 0.001<br />
0.002<br />
0.036<br />
0.915<br />
OR = Odds ratio; CI = Confidence interval<br />
The model could correctly classify 81.5%, with correction prediction ratio of those giving advice of 67% and 96% of those not giving advice.
301<br />
Towards Prevention of Diabetes in Offsprings of Type 2 Diabetic Patients<br />
<strong>December</strong> <strong>2012</strong><br />
Table 5 shows significant predictors of giving<br />
advice to offspring using stepwise forward likelihood<br />
multiple logistic regression. The first step for<br />
identifying the significant predictors was entering all<br />
the independent variables to the model. In the second<br />
step, all variables with 0.10 or less p- value were entered<br />
into a stepwise forward likelihood multiple logistic<br />
regression model. After adjusting for the confounding<br />
factors, only four factors proved to be significantly<br />
predicting advising offspring about diabetes. These<br />
factors included recognizing the importance of giving<br />
the advice as well as unbalanced diet as an etiological<br />
factor of diabetes. Young age and not suffering from<br />
diabetes complications proved to be significantly<br />
associated with advising offspring after adjusting for<br />
the confounding factors.<br />
DISCUSSION<br />
The growing diabetes pandemic that is spreading<br />
all over the world necessitates more attention and<br />
rapid effective programs to control its impact. A<br />
wide spectrum of interventions to prevent diabetes<br />
or delay its onset as well as control its complications<br />
is available. The feasibility and effectiveness of these<br />
interventions varies widely. Although communicating<br />
the potential risks of diabetes and recognition of the<br />
behavioral factors that may be closely linked to the<br />
disease is the main responsibility of the primary health<br />
care staff, parents can play an active role to educate<br />
their children who are at higher risk for developing<br />
type 2 diabetes [10] . Recent studies have illustrated the<br />
potential for intervention in persons with impaired<br />
glucose tolerance to reduce progression to type 2<br />
diabetes. A study in the United States showed that<br />
lifestyle intervention (diet and exercise) reduced the<br />
risk of this progression by 58% [11] . Two other large-scale<br />
studies from China [12] , and Finland [13] demonstrated<br />
effects similar to the American study. In the Finnish<br />
study, the cumulative incidence of diabetes after four<br />
years was 11% in the intervention group and 23% in the<br />
control group. During the trial, the risk of diabetes was<br />
reduced by 58% (p < 0.001) in the intervention group,<br />
and was directly associated with changes in lifestyle.<br />
Proper risk perception of diabetic parents and<br />
adopting a positive attitude toward prevention of<br />
diabetes among their offspring can urge them to educate<br />
their children and guide them to adopt a healthy<br />
behavior. Thus, the current study was formulated to<br />
investigate the factors that can stimulate parents to<br />
advise their offsprings about diabetes prevention and<br />
the factors affecting the giving of this advice. Several<br />
studies were carried out in Kuwait to reveal knowledge<br />
of diabetic patients about etiological risk factors and<br />
management procedures to deal with the disease. One<br />
study revealed that mean score for the total knowledge<br />
test was 58.9% [14] . Knowledge deficits were apparent in<br />
the questions related to diet and self-care.<br />
One study carried out in Japan revealed that<br />
diabetic disease status was related to giving advice.<br />
Use of insulin or oral treatment and the presence<br />
of complications were related to giving advice [7] .<br />
However, the results of this study revealed that<br />
patients with complications were less likely to advise<br />
their children (OR = 0.15, 95% CI =0.08-0.28). The same<br />
trend was noticed for family history as those with<br />
positive family history were also less likely to advise<br />
their children (OR = 0.39, 95% CI = 0.19-0.79). The<br />
absence of complications might be due to adopting<br />
effective techniques and behavior that might stimulate<br />
them to advise their children to adopt these successful<br />
lifestyles. Also, a negative family history which means<br />
that the diabetic parent is the only person in the family<br />
with diabetes might make them feel that they have a<br />
greater responsibility toward advising their children.<br />
Delaying the onset of type 2 diabetes depends<br />
essentially on implementing successful lifestyle<br />
intervention strategies [15] . Cognitive and behavioral<br />
strategies have been used to reduce weight through<br />
dietary restriction and increased physical activity [16] .<br />
However, to be able to implement these healthy<br />
behaviors; diabetic patients must first recognize<br />
the importance as well as the role of these factors in<br />
preventing diabetes. However, the association between<br />
risk perception and behavior has been inconsistent;<br />
while some studies revealed a positive association<br />
between risk perception and health behaviors [17] , other<br />
studies failed to demonstrate this association [18] . This<br />
might be attributed to the poorly specified relationship<br />
between behavior and risk perception. Also, other<br />
factors may affect relationship such as knowledge of<br />
diabetes factors, perceived personal control, or the<br />
degree to which one believes that risk is modified by<br />
one’s action, and optimistic bias, or one’s assessment<br />
of their risk compared with others like them [19] .<br />
One finding about risk perception revealed by this<br />
study is the very low recognition of the probability<br />
of children to develop type 2 diabetes in presence of<br />
positive family history when compared with negative<br />
history. Similar findings were revealed by a Korean<br />
study among offspring of diabetic parents where only<br />
9.9% of the study children could correctly perceive<br />
their risk of developing diabetes [20] .<br />
Multiple logistic regression revealed that young<br />
age, not experiencing complication related to diabetes,<br />
and recognizing the importance of the role of healthy<br />
behavior in preventing diabetes development as well<br />
as specifically recognizing the role of unbalanced<br />
diet are significant predictors for advising children.<br />
In Japan, a similar study dealing with passing of<br />
advice to children revealed that being male, living<br />
with offspring, hospitalizations related to diabetes,<br />
suffering from complications, risk perception, and
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 302<br />
recognizing the role of lack of exercise as an etiological<br />
factor for diabetes proved to be significantly associated<br />
with giving advice to children in the multiple logistic<br />
regression [7] . The differences between the two studies<br />
might be attributed to the difference in culture and<br />
the high prevalence of factors such lack of activity and<br />
obesity.<br />
Although this study dealt with a relatively large<br />
number and a high response rate, yet, due to the<br />
nature of the study, some limitations can be identified.<br />
These limitations include dealing only with a sample<br />
from one primary health care center which might<br />
undermine generalization of the results. The study is<br />
a cross-sectional one, while perception of risk would<br />
be more appropriately a longitudinal study. Thus, it<br />
is recommended that a large study sample involving<br />
diabetic patients representing the whole state of<br />
Kuwait be undertaken in order to confirm the results<br />
of this study.<br />
CONCLUSION<br />
The findings of the current study illustrate the<br />
need to improve the knowledge and perception of<br />
type 2 diabetic patients about the etiological factors of<br />
diabetes as well as perception of risk of development<br />
of diabetes among their offsprings. It is essential<br />
to encourage parents to advise their children to<br />
adopt healthy lifestyle behavior. In this context, a<br />
comprehensive approach that addresses behavioral,<br />
social, and physical environment interventions is<br />
expected to achieve the required outcomes. Proper risk<br />
communication from primary health care workers to<br />
parents and their children needs more attention in the<br />
primary health care units.<br />
REFERENCES<br />
1. Hivert MF, Grant RW, Warner AS, Meigs JB, Shrader P.<br />
Diabetes risk perception and intention to adopt healthy<br />
lifestyles among primary care patients. Diabetes Care<br />
2009; 32:1820-1822.<br />
2. Wild S, Roglic G, Green A, Sicree R, King H. Global<br />
prevalence of diabetes: estimates for the year 2000 and<br />
projections for 2030. Diabetes Care 2004; 27:1047-1053.<br />
3. International Diabetes Federation. IDF Diabetes Atlas.<br />
4th edn. Brussels: IDF, 2009.<br />
4. Jermendy G, Horváth T, Littvay L, et. al. Effect of genetic<br />
and environmental influences on cardiometabolic risk<br />
factors: a twin study. Cardiovasc Diabetol 2011; 3:10:96.<br />
5. Alhyas L, McKay A, Balasanthiran A, Majeed A.<br />
Prevalences of overweight, obesity, hyperglycaemia,<br />
hypertension and dyslipidaemia in the Gulf: systematic<br />
review. J R Soc Med Sh Rep 2011; 2:55-70.<br />
6. Knowler WC, Barrett-Connor E, Fowler SE, Hamman<br />
RF, Lachin JM, Walker EA. Diabetes Prevention Research<br />
Group. Reduction in the incidence of type 2 diabetes<br />
with lifestyle intervention or metformin. N Engl J Med<br />
2002; 346:393-403.<br />
7. Nishigaki M, Kobayashi K, Kato N, et al. Preventive<br />
advice given by patients with type 2 diabetes to their<br />
offspring. Br J Gen Pract 2009; 59:37-42.<br />
8. Gustafson PE. Gender differences in risk perception:<br />
theoretical and methodological perspectives. Risk Anal<br />
1998; 18:805-811.<br />
9. World Health Organization. Obesity: preventing and<br />
managing the global epidemic. WHO Technical Report<br />
Series 2000; 894:1-253.<br />
10. Brekke HK, Sunesson A, Axelsen M, Lenner RA.<br />
Attitudes and barriers to dietary advice aimed at<br />
reducing risk of type 2 diabetes in first-degree relatives<br />
of patients with type 2 diabetes. J Hum Nutr Diet 2004;<br />
17:513-521.<br />
11. Larkin M. Diet and exercise delay onset of type 2<br />
diabetes, say US experts. Lancet 2001; 358:565.<br />
12. Pan XR, Li GW, Hu YH, et al. Effects of diet and exercise<br />
in preventing NIDDM in people with impaired glucose<br />
tolerance. The Da Qing IGT and Diabetes Study.<br />
Diabetes Care 1997; 20:537-5<strong>44</strong>.<br />
13. Tuomilehto J, Lindstrom J, Eriksson JG, et al. Prevention<br />
of type 2 diabetes mellitus by changes in lifestyle among<br />
subjects with impaired glucose tolerance. N Engl J Med<br />
2001; 3<strong>44</strong>:1343-1350.<br />
14. Al-Adsani AM, Moussa MA, Al-Jasem LI, Abdella NA,<br />
Al-Hama NM. The level and determinants of diabetes<br />
knowledge in Kuwaiti adults with type 2 diabetes.<br />
Diabetes Metab 2009; 35:121-128.<br />
15. Gillies CL, Abrams KR, Lambert PC, et al.<br />
Phar¬macological and lifestyle interventions to<br />
pre¬vent or delay type 2 diabetes in people with<br />
impaired glucose tolerance: systematic review and<br />
meta-analysis. BMJ 2007; 334:299.<br />
16. Marrero DG, Ackermann RT. Providing long-term<br />
support for lifestyle changes: A key to success in<br />
diabetes prevention. Diabetes Spectrum 2007; 20:205-<br />
209.<br />
17. Benner JS, Cherry SB, Erhardt L, et al. Rationale, design,<br />
and methods for the risk evaluation and communication<br />
health outcomes and utilization trial (REACH OUT).<br />
Contemp Clin Trials 2007; 28:662-673.<br />
18. Koelewijn-van Loon MS, van Steenkiste B, Ronda G,<br />
et al. Improving patient adherence to lifestyle advice<br />
(IMPALA): a cluster-randomised controlled trial on<br />
the implementation of a nurse-led intervention for<br />
cardiovascular risk management in primary care<br />
(protocol). Health Serv Res 2008; 8:9-23.<br />
19. Benner JS, Erhardt L, Flammer M, et al. A novel<br />
programme to evaluate and communicate 10-year risk<br />
of CHD reduces predicted risk and improves patients’<br />
modifiable risk factor profile. Int J Clin Pract 2008;<br />
62:1484-1498.<br />
20. Kim J, Choi S, Kim CJ, Oh Y, Shinn SH. Perception<br />
of risk of developing diabetes in offspring of type 2<br />
diabetic patients. Korean J Intern Med 2002; 17:14-18.
303<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Original Article<br />
Stereotactic Surgery: Diagnostic and Therapeutic<br />
Role in the Management of Brain Disorders<br />
and Our Experience at Ibn Sina Hospital<br />
Hasan Khajah, Aftab Khan, Yousaf Al Awadi, Abbas Ramadan<br />
Department of Neurological Surgery, Ibn Sina Hospital, Kuwait<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 303 - 307<br />
ABSTRACT<br />
Objectives: To present the results of our experience with<br />
stereotactic surgery, which is a safe and minimally invasive<br />
technique, in the field of neurosurgery.<br />
Design: Prospective study<br />
Settings: Department of Neurosurgery, Ibn Sina Hospital,<br />
Kuwait<br />
Subjects and Methods: Forty patients underwent stereotactic<br />
surgery for diagnostic and therapeutic purposes during<br />
the five years between 2006 and 2011. There were 26 male<br />
and 14 female patients with a mean age of 47 years (range<br />
9 – 70 yrs). Twenty seven (67.5%) patients had diagnostic<br />
brain procedures and 13 (32.5%) had diagnostic as well<br />
as therapeutic procedures. The stereotactic surgery was<br />
carried out with the help of computerized tomography (CT)<br />
- guided Leksell stereotactic frame® and Leksell SurgiPlan®<br />
software.<br />
Intervention: Stereotactic surgery<br />
Main Outcome Measures: Outcome of surgery and<br />
complications<br />
Results: Stereotactic biopsies confirmed 28 (70%) patients<br />
with brain tumors; six (14%) with cerebral infections, four<br />
(10%) with multiple sclerosis and one with cerebral infarction.<br />
Stereotactic aspirations were performed in nine patients;<br />
four with cystic brain tumors and five with brain abscesses.<br />
Stereotactic insertion of Ommaya reservoir was performed in<br />
four patients with cystic brain lesions. Complication, related<br />
to the procedure was observed only in one patient and was<br />
managed conservatively. No other morbidity or mortality<br />
was noted.<br />
Conclusions: Stereotactic surgery is a minimal invasive<br />
technique that helps the neurosurgeon in further planning<br />
of an appropriate treatment after tissue biopsy. It can also<br />
be used as primary mode of treatment in patients with brain<br />
abscesses, cysts and intracranial hematomas.<br />
KEY WORDS: brain abscess, brain tumors, minimally invasive surgery, stereotactic surgery<br />
INTRODUCTION<br />
Most neurosurgical patients can be diagnosed<br />
correctly on the basis of the natural history of their brain<br />
disorders and after clinical, laboratory and imaging<br />
findings but in some cases, diagnosis is difficult and<br />
the treatment is based on presumptive diagnosis.<br />
Stereotactic surgery is an image-guided technique<br />
which is used to detect the nature of lesion and decide<br />
about the appropriate treatment plan. This technique<br />
is used for an accurate localization of anatomical or<br />
pathological brain structures in three-dimensional (3-<br />
D) space.<br />
Leksell stereotactic system is unique for its<br />
simplicity, accuracy and versatility [1] . It is light weight<br />
frame and all three (x, y and z) coordinates can be<br />
calculated quickly from a 2-dimensional image<br />
without a computer. Stereotactic biopsy is used as<br />
a diagnostic tool to obtain tissue samples that are<br />
suspicious for tumors, infections, infarctions or other<br />
brain pathologies like neurodegenerative disease.<br />
This is the most accurate method of taking biopsies<br />
in deep or highly functional areas of the brain and in<br />
patients with multiple brain lesions or in medically<br />
compromised patients with minimal morbidity and<br />
mortality [2-4] .<br />
Stereotactic aspiration is a valuable procedure in<br />
this field for the primary treatment of different brain<br />
tumors like gliomas (cystic part), craniopharyngiomas [5]<br />
and colloid cysts [6-7] .<br />
Stereotactic drainage is also a treatment of choice<br />
for brain abscesses. Kondziolka et al [8] treated 16<br />
patients with deeply located brain abscesses using this<br />
Address correspondence to:<br />
Dr Hasan Khajah MD, Department of Neurosurgery, Ibn Sina Hospital, P O Box 25427, Safat 13115, Kuwait. Tel: +965 2484-0300, ext 5577, Fax : +965<br />
2484-9226, E-mail : haskhajah@yahoo.se
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 304<br />
technique for diagnosis and abscess drainage. Lunsford<br />
et al [9] reported good results with overall bacteriologic<br />
identification of 97% and cure rates of 72% in patients<br />
with brain abscesses. Stereotactic aspirations of<br />
intracerebral hypertensive hemorrhages (acute or<br />
subacute) have shown encouriging results [10] . Catheter<br />
reservoirs may be implanted into the hematoma,<br />
followed with streptokinase or tissue plasminogen<br />
activator injections to lyse the clot [11] .<br />
Although it is a minimally invasive technique, yet<br />
complications have been reported. Sometimes, sample<br />
of the brain tissue taken for biopsy may be nondiagnostic<br />
and may warrant a repeat biopsy. Other<br />
risks include intracranial hemorrhage, infection or<br />
seizures.<br />
Appuzo et al [12] reported 1% morbidity (intracranial<br />
hemorrhage, infection, increased neurological deficit<br />
and seizures) and 0.2 % mortality. Lunsford et al [13]<br />
reported postoperative complications in 2.9% (77)<br />
patients in a series of 2651 patients who underwent<br />
different stereotactic procedures. Out of those,<br />
intracranial hemorrhage occurred in 55 (2.07%)<br />
patients; 11 (0.41%) had local infections at pin sites;<br />
11 (0.41%) patients had post-procedural seizures.<br />
Two (0.075%) patients died from the complications of<br />
the procedure. Although some centers are currently<br />
migrating to frameless stereotactic procedures, their<br />
complication rates are yet to be reported [13] .<br />
PATIENTS AND METHODS<br />
Between 2005 and 2011, we have managed 40<br />
patients with stereotactic surgery. The patients were<br />
selected on the basis of following diagnostic and<br />
therapeutic indications.<br />
Diagnostic<br />
1. Tumors not correlating with their natural history<br />
2. Multiple brain lesions<br />
3. Small and deeply located tumors<br />
4. Patients in good clinical condition (Karnofsky score<br />
> 70)<br />
Therapeutic<br />
5. Cystic lesions that need aspiration<br />
6. Intracranial abscesses<br />
The mean age of the patients was 47 years (range 9<br />
- 70 years). There were 26 male and 14 female patients.<br />
Most of the patients presented with occasional<br />
headaches followed by nausea. Five patients<br />
presented with focal seizures and 12 with neurological<br />
deficits. Twenty patients had lesions, located in the<br />
supratentorial region, 12 in the thalamic and basal<br />
ganglia area, two in the suprasellar region and seven<br />
had multiple intracranial lesions. Stereotactic surgery<br />
was performed with computed tomography (CT)/<br />
magnetic resonance imaging (MRI) - guided Leksell<br />
stereotactic system® and Leksell SurgiPlan® software<br />
v2.20. The procedure started with fixation of Leksell<br />
frame to the head after conscious sedation and local<br />
anesthesia (Fig. 1). All the patients underwent CT<br />
scan with contrast after the attachment of the fiducial<br />
box to the frame. All the brain images were exported<br />
to the computer workstation through Dicom system.<br />
Fig.1: Application of Leksell frame and the arc in a 45 years old<br />
patient who underwent stereotactic biopsy for the suspected tumor<br />
Coordinates (x, y, z) were calculated with the help<br />
of Leksell surgiplan® software v2.20. Under general<br />
anesthesia, the patient’s head was fixed onto the<br />
Mayfield skull clamp. An arc of the stereotactic system<br />
was attached to the base ring of Leksell frame and<br />
positioned according to the calculated coordinates<br />
so that its center coincides with the selected brain<br />
target. The choice of entry point is free and can be<br />
reached from any direction without the need of<br />
computer calculation (Fig. 2). It depends upon the<br />
location, size, and consistency and the intervening<br />
neural and vascular structures. The entry point should<br />
minimize the length of passage through the brain<br />
and avoid eloquent areas. At the point of entry, a<br />
small skin incision is given, a burr hole is made and<br />
the dura opened to allow visualization of the cortex.<br />
It provides complete freedom of choice of trajectory<br />
and entry point selection. The specimen is taken from<br />
the selected target with the help of biopsy needle and<br />
stored in a bottle with formalin solution and sent for<br />
histopathology. The frame is removed and the patient<br />
is sent for CT scan of brain to rule out any postoperative<br />
complication like hemorrhage and is then transferred<br />
to the recovery room.<br />
RESULTS<br />
Stereotactic biopsy established brain tumors in<br />
28 (70%) patients, brain abscesses in five (12.5%) and
305<br />
Stereotactic Surgery: Diagnostic and Therapeutic Role in the Management of Brain ...<br />
<strong>December</strong> <strong>2012</strong><br />
Fig. 2: Stereotactic SurgiPlan of a 60-year-old female patient with a large cystic glioma<br />
neurodegenerative diseases (multiple sclerosis) in four<br />
(10%) patients. One had fungal infection (Aspergilliosis)<br />
and another had brain infarction (Stroke). The biopsy<br />
was negative in one patient and was not repeated due<br />
to refusal by the relatives (Fig. 1). Patients with stroke<br />
and multiple sclerosis were referred to neurology<br />
for their management. Patients with pyogenic brain<br />
abscesses were treated by stereotactic aspiration along<br />
Table 1: Results of stereotactic biopsy of 28 patients with brain<br />
tumors done at Ibn Sina Hospital.<br />
Histological diagnosis<br />
Patients<br />
(n = 28)<br />
Gliomas (N = 21 patients)<br />
Pilocytic Astrocytomas (WHO* Grade I) 4<br />
Anaplastic Astrocytomas (WHO Grade III) 2<br />
Glioblastoma Multiforme (WHO Grade IV) 14<br />
Anaplastic Ganglioglioma 1<br />
Others (N = 7 patients)<br />
Lymphomas 2<br />
Tuberculoma 1<br />
Brain Metastasis (Lung Carcinoma) 1<br />
Malignant Melanoma 1<br />
Craniopharyngiomas 2<br />
* WHO- World Health Organization<br />
with administration of adequate antibiotics (Fig. 3a &<br />
3b). All these patients recovered and are doing well<br />
at two to five years follow-up. Patient with cerebral<br />
fungal infection was managed conservatively with<br />
antifungal drugs and recovered. Among 28 patients<br />
with brain tumors, 21 were diagnosed with gliomas<br />
of different grades according to World Health<br />
Organization (WHO) grading system; (4 patients with<br />
Grade 1; 3 patients with Grade III; 14 patients with<br />
Grade IV). The other pathologies were lymphoma<br />
in two, craniopharyngioma in two, brain metastasis<br />
(from lung carcinoma) in one, malignant melanoma in<br />
one and tuberculoma in one patient (Table 1). Out of 28<br />
patients with brain tumors, eight (28.6%) patients were<br />
managed with stereotactic therapeutic procedures.<br />
Stereotactic aspiration of the cystic part of the tumor<br />
was performed in four patients (2 patients with<br />
GBM; one with pilocytic astrocytoma and one with<br />
malignant glioma) and insertion of Ommaya reservoir<br />
was done in four patients (2 in pilocytic astrocytomas;<br />
one in GBM and one in recurrent craniopharyngioma).<br />
After the procedure, all the patients were referred for<br />
chemotherapy and radiation therapy. All the patients<br />
with GBM, lymphoma, recurrent craniopharyngioma,<br />
malignant melanoma were without mass effect
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 306<br />
Fig. 3: MRI of the patient with brain abscess, showing pre (3a) and<br />
post-radiosurgery imaging (3b)<br />
and were referred for chemotherapy and radiation<br />
therapy. The patient with brain metastasis was further<br />
investigated and his origin of the primary disease was<br />
found to be in the lungs. The patient was referred to<br />
radiation oncologist for further management.<br />
Stereotactic drainage of the intracranial abscess<br />
was performed in five patients. Pus was sent for<br />
culture sensitivity and postoperatively, patients<br />
were managed conservatively with antibiotics.<br />
Post surgical imaging showed reduction in size of<br />
the abscess cavities and clinically all the patients<br />
improved.<br />
Post-operative complication occurred in one<br />
patient. This was asymptomatic hemorrhage after<br />
tissue biopsy which was managed conservatively.<br />
There was no other procedure-related morbidity or<br />
mortality.<br />
DISCUSSION<br />
Stereotactic surgery has been recognized since<br />
many decades after the use of freehand biopsy<br />
techniques resulted in too many postoperative<br />
complications [14-16] .<br />
Stereotactic surgery either for diagnosis or<br />
treatment provides us precision, accuracy and safety<br />
to localize the target in the brain. Stereotactic biopsy<br />
stresses the importance of histological diagnosis<br />
with low morbidity and zero mortality. Many reports<br />
are published in the literature on the safe use of this<br />
technique and a tissue diagnosis is always required<br />
prior to treatment for most cerebral lesions. In their<br />
early experience, Lunsford et al [17] published results of<br />
102 patients with brain disorders who were referred<br />
to University of Pittsburgh for surgical exploration,<br />
using CT-guided stereotactic system. All the patients<br />
were referred because of critical size and location of<br />
the lesions in brain. Diagnostic stereotactic biopsy<br />
demonstrated diagnosis in 98 (96.1%) patients.<br />
Direct therapeutic intervention using this technique<br />
was possible in 26 (25.5%) patients. There was no<br />
morbidity and mortality seen in this early series.<br />
According to them, histological diagnosis must be<br />
sought in all patients with symptomatic brain lesions<br />
regardless of their size or location and “Empiric”<br />
forms of therapy are no longer justified in the age<br />
of CT scanning. Lunsford et al[ 18] reported another<br />
series of 39 patients with craniopharyngiomas who<br />
underwent multimodality stereotactic techniques.<br />
Cystic craniopharyngiomas were treated successfully<br />
with stereotactic implantation of radioactive P32 in<br />
the cystic cavity of the tumor. The success rate was<br />
96%. Kondziolka et al [9] reported a series of 29 patients<br />
with brain abscess. Out of these, 22 (76%) patients had<br />
stereotactic abscess drainage with purulent centers<br />
and seven (24%) patients underwent lesion biopsy<br />
for diagnosis. Twelve patients with large abscesses of<br />
diameter > 3 cm, underwent stereotactic insertion of<br />
drainage catheters. Long-term clinical and imaging<br />
follow-up confirmed disease resolution in 21 patients<br />
(72%) and eventual abscess resolution occurred<br />
in an additional six patients (21%), who required<br />
multiple procedures. Lakecivic et al [19] published an<br />
article to differentiate the results of survival and<br />
outcome of patients with malignant brain gliomas<br />
who were treated by different modes. The control<br />
group of 21 patients had undergone craniotomy and<br />
surgical excision, followed by oncological protocol<br />
while the case group of 11 patients underwent<br />
stereotactic biopsy followed by oncological protocol.<br />
The majority of patients diagnosed by a stereotactic<br />
biopsy survived for more than two years. The<br />
survival and outcome for the patients in whom a<br />
stereotactic biopsy was performed were notably<br />
better compared to the patients who were diagnosed<br />
after surgical excision. Consequently, it appears<br />
that a stereotactic biopsy is a better option for<br />
primary treatment of patients with malignant brain<br />
gliomas when the survival and quality of life are<br />
concerned. Broggi et al [20] published their experience<br />
in 35 patients who underwent stereotactic biopsy<br />
for deeply located lesions. According to them, the<br />
biopsies confirmed the diagnosis based on clinical<br />
and imaging findings in 25 patients but in 10 patients<br />
the histological diagnosis was different from the<br />
presumptive one. The treatment option was changed<br />
in these ten patients. Ostertag et al [4] reported their<br />
experience with 302 cases of stereotactic biopsy and<br />
advocated that exploratory craniotomies, risky freehand<br />
punctures and aspirations deep in the brain<br />
should not be done without prior diagnosis.<br />
Our report emphasises the importance of<br />
histological diagnosis to avoid the hazards of<br />
treatments based on clinical and radiological<br />
findings. Only one of 40 patients had complication,<br />
which shows safety profile of frame based stereotactic<br />
surgery.
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Stereotactic Surgery: Diagnostic and Therapeutic Role in the Management of Brain ...<br />
<strong>December</strong> <strong>2012</strong><br />
CONCLUSION<br />
Results of our study showed that stereotactic surgery<br />
is a safe and accurate technique which is introduced<br />
and applied safely in Kuwait for the management of<br />
different brain disorders.<br />
REFERENCES<br />
1. Leksell L. A stereotactic apparatus for intracranial<br />
surgery. Acta Chir Scand 1949; 99:229-233.<br />
2. Gildenberg PL, Kaufman HH, Murthy KSK. Calculation<br />
of stereotactic coordinates from the computed<br />
tomographic scan. Neurosurgery 1982; 10:580-586.<br />
3. Kelly PJ, Earnest F, Kall BA, Goerss SJ, Scheithauer B.<br />
Surgical options for patients with deep-seated brain<br />
tumors: computer-assisted stereotactic biopsy. Mayo<br />
Clin Proc 1985; 60:223-229.<br />
4. Ostertag CB, Mennel HD, Kiessling M. Stereotactic<br />
biopsy of brain tumors. Surg Neurol 1980; 14:275-283.<br />
5. Lunsford LD. Stereotactic treatment of<br />
craniopharyngioma: intracavitary irradiation and<br />
radiosurgery. Cont Neurosurg 1989; 11:1-6.<br />
6. Hall, WA, Lunsford LD. Stereotactic management of<br />
colloid cysts. Factors predicting success. J Neurosurg<br />
1991; 75:45-51.<br />
7. Kondziolka D, Lunsford LD. Stereotactic techniques<br />
for colloid cysts: roles of aspiration, endoscopy, and<br />
microsurgery. Acta Neurochir Suppl 1994; 61:S76-78.<br />
8. Kondziolka D, Duma CM, Lunsford LD. Factors<br />
that enhance the likelihood of successful stereotactic<br />
treatment of brain abscesses. Acta Neurochir 1994;<br />
127:85-90.<br />
9. Lunsford LD. Stereotactic drainage of brain abscesses.<br />
Neurol Res 1987; 9: 270-274.<br />
10. Backlund EO, Von Holst H. Controlled subtotal<br />
evacuation of intracerebral hematoma by stereotactic<br />
technique. Surg. Neurol 1978; 9:99-101.<br />
11. Broseta J, Gonzales-Darder J, Barcia-Salorio JL.<br />
Stereotactic evacuation of intracerebral hematomas.<br />
Appl Neurophysiol. 1982; 45:<strong>44</strong>3-<strong>44</strong>8.<br />
12. Apuzzo ML, Chandrasoma PT, Cohen D, Zee CS,<br />
Zelman V. Computed imaging stereotaxy: experience<br />
and perspective related to 500 procedures applied to<br />
brain masses. Neurosurgery 1987; 20:930-937.<br />
13. Lunsford DL, Niranjan A, Khan A, Kondziolka D.<br />
Establishing a benchmark for complications using<br />
frame-based stereotactic surgery. Stereotact Funct<br />
Neurosurg 2008; 86:278-287.<br />
14. Spiegel, EA, and Wycis, HT. Stereoencephalotomy.<br />
Grune & Stratton 1962<br />
15. Leksell L. The stereotaxic apparatus for intracranial<br />
neurosurgery. Acta Chir Scand 1949; 99:229-253.<br />
16. Backlund EO: A new instrument for stereotaxic brain<br />
tumor biopsy: technical note. Acta Chir Scand 1971;<br />
137:825-827.<br />
17. Lunsford LD, Martinez AJ. Stereotactic exploration<br />
of the brain in the era of computed tomography. Surg<br />
Neurol 1984; 22:222-230.<br />
18. Lunsford LD, Pollock BE, Kondziolka DS, Levine G,<br />
Flickinger JC. Stereotactic options in the management of<br />
craniopharyngioma. Pediatr Neurosurg 1994; 21:90-97.<br />
19. Lakicević G, Splavski B, Brekalo Z. The value of<br />
stereotactic biopsy in improving survival and quality of<br />
life for malignant brain glioma patients. Coll Antropol<br />
2010; 34:S93-97.<br />
20. Broggi G, Franzini A. Value of serial stereotactic<br />
biopsies and impedance monitoring in the treatment<br />
of deep brain tumors. J Neurol Neurosurg Psychiatry<br />
1981; <strong>44</strong>:397-401.
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 308<br />
Original Article<br />
Synergy between Dendritic Cell-Based Vaccine<br />
and Anti-CD137 Monoclonal Antibody in the<br />
Treatment of Mouse Renal Cell Carcinoma<br />
Si-Ming Wei 1,2 , Zhi-Zhong Yan 3 , Jian Zhou 4<br />
1<br />
Department of Surgery, Zhejiang Medical College, Hangzhou City, Zhejiang, China<br />
2<br />
Department of Urology, Third Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou City, Zhejiang, China<br />
3<br />
Department of Reproductive Medicine, Red Cross Hospital, Hangzhou City, Zhejiang, China<br />
4<br />
Department of Surgery, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou City, Zhejiang, China<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 308 - 315<br />
ABSTRACT<br />
Objective: Therapeutic efficacy of dendritic cell-based<br />
vaccine for renal cell carcinoma remains limited. In this study,<br />
we investigated whether anti-CD137 monoclonal antibody is<br />
capable of potentiating anti-tumor effect of dendritic cellbased<br />
vaccine.<br />
Design: Experimental study<br />
Setting: Research laboratory<br />
Subjects: Balb/c mice (8-10 weeks old)<br />
Interventions: A renal cell carcinoma model was established by<br />
subcutaneous injection of Renca tumor cells into Balb/c mice<br />
on day 0. After three days, tumor-bearing mice were treated<br />
with Renca tumor lysate-pulsed dendritic cells (i.e., dendritic<br />
cell-based vaccine), anti-CD137 monoclonal antibody, or<br />
combination of Renca tumor lysate-pulsed dendritic cells with<br />
anti-CD137 monoclonal antibody. Mice were killed on day 20<br />
after tumor cell inoculation, and spleens were harvested for<br />
analysis of anti-tumor immune responses.<br />
Main Outcome Measures: The anti-tumor immune responses<br />
were analyzed by measuring proliferation and activity of T<br />
cells, which have the ability to kill tumor cells. The anti-tumor<br />
effect was assessed by measuring tumor size.<br />
Results: The combination therapy with Renca tumor lysatepulsed<br />
dendritic cells and anti-CD137 antibody significantly<br />
increased T-cell proliferation and activity, and significantly<br />
inhibited tumor growth, compared with a single treatment<br />
with Renca tumor lysate-pulsed dendritic cells or anti-CD137<br />
antibody.<br />
Conclusion: These results suggest that combination therapy<br />
can enhance anti-tumor effect by increasing T-cell proliferation<br />
and activity.<br />
KEY WORDS: CD137, dendritic cell vaccine, immunotherapy, mouse tumor models, renal cell carcinoma<br />
INTRODUCTION<br />
Human renal cell carcinoma accounts for<br />
approximately 2 - 3% of all adult cancers [1] . It has<br />
the third highest mortality rate among genitourinary<br />
malignancies, with an estimated 12,000 deaths per<br />
year [1,2] . Incidence rates for renal cell carcinoma have<br />
been increasing continuously by 2 - 3% per year [1,2] .<br />
More than 30% of renal cell carcinoma patients have<br />
metastatic disease at the time of diagnosis, thereby<br />
losing the chance of an operation [3] . In addition, 30%<br />
of patients with primary localized renal cell carcinoma<br />
will subsequently develop metastatic spread after<br />
radical nephrectomy [4] . Metastatic renal cell carcinoma<br />
is resistant to conventional therapies, such as<br />
chemotherapy and radiotherapy [5] . As a result, these<br />
patients with metastatic renal cell carcinoma have a<br />
poor prognosis with 2-year survival rate of < 20% [6] .<br />
The spontaneous regression of metastases has been<br />
reported in 1 - 6% of metastatic renal cell carcinoma<br />
patients [7] . Furthermore, many studies have revealed<br />
infiltration of renal cell carcinoma tissue with T<br />
lymphocytes and dendritic cells [8] . These findings<br />
suggest that immune system plays an important role in<br />
controlling renal cell carcinoma growth. Therefore, the<br />
present treatment strategy for renal cell carcinoma is to<br />
stimulate the patient’s immune system to increase antitumor<br />
immune response by using immunostimulatory<br />
cytokines, such as interferon-α and interleukin-2 [9] .<br />
Clinical trials have shown that cytokine therapy with<br />
interferon-α and interleukin-2 can produce objective<br />
Address correspondence to:<br />
Si-Ming Wei, MD, PhD, Department of Surgery, Zhejiang Medical College, Hangzhou City, Zhejiang Province, 310053, China. Tel: +86 571 81710893,<br />
E-mail: wsm1971@hotmail.com
309<br />
Synergy between Dendritic Cell-Based Vaccine and Anti-CD137 Monoclonal ...<br />
<strong>December</strong> <strong>2012</strong><br />
responses in 10 - 15% of patients, but is associated with<br />
severe toxicity [4,10] . Hence, new immunotherapeutic<br />
approaches with more effective anti-tumor activity<br />
and less toxicity are urgently required.<br />
The recent trend in cancer immunotherapy has been<br />
directed toward dendritic cell-based vaccine. It can<br />
induce anti-tumor immune response by activation of<br />
tumor-specific T lymphocytes [11] . In 14 clinical studies,<br />
197 patients with metastatic renal cell carcinoma<br />
underwent therapy with dendritic cell-based vaccine [12] .<br />
According to the World Health Organization criteria,<br />
clinical responses to vaccine are defined as follows [13] .<br />
Complete response means complete disappearance<br />
of tumor; partial response means ≥ 50% decrease in<br />
tumor size without the appearance of new metastases;<br />
stable disease means < 50% decrease or < 25% increase<br />
in tumor size; and progressive disease means ≥ 25%<br />
increase in tumor size or the appearance of new<br />
metastases. Out of the 197 patients, 73 (37%) had clinical<br />
response with four complete responses, eight partial<br />
responses and 61 disease stabilizations [12] . Only mild<br />
side-effects, such as low-grade fever, fatigue, diarrhea,<br />
flulike symptoms, and local reactions around the<br />
injection site, were observed in these patients. Though<br />
dendritic cell-based vaccine had encouraging results<br />
in the treatment of metastatic renal cell carcinoma,<br />
clinical response rate remained limited. Dendritic cellbased<br />
vaccine was administered in combination with<br />
interleukin-2 to treat patients with metastatic renal<br />
cell carcinoma in order to improve vaccine efficacy [14] .<br />
However, clinical response rate was 40%, similar to<br />
single treatment with dendritic cell vaccine. Therefore,<br />
new approaches to significantly increase vaccine effect<br />
are needed.<br />
The CD137 (4-1BB), a member of tumor necrosis<br />
factor receptor (TNFR) superfamily, is an inducible costimulatory<br />
molecule expressed primarily on activated<br />
T cells [15] . Ligation of CD137 by anti-CD137 monoclonal<br />
antibody delivers a potent co-stimulatory signal to T<br />
cells, and enhances proliferation and activity of T cells,<br />
which have the ability to kill tumor cells [16] . Previous<br />
study has demonstrated that treatment of tumorbearing<br />
mice with anti-CD137 antibody can result in<br />
T cell-mediated tumor rejection [17] . We hypothesized<br />
that anti-CD137 antibody may potentiate anti-tumor<br />
effect of dendritic cell-based vaccine. The reason is as<br />
follows. Treatment with dendritic cell-based vaccine<br />
induces up-regulation of CD137 expression on T cells<br />
by activating T cells. Subsequent administration of anti-<br />
CD137 antibody further increases T cell proliferation<br />
and activity through ligation of CD137 on T cells,<br />
thereby strengthening anti-tumor effect. To confirm<br />
this hypothesis, we investigated the combined effect of<br />
dendritic cell-based vaccine with anti-CD137 antibody<br />
in renal cell carcinoma mouse model.<br />
MATERIALS AND METHODS<br />
Animals<br />
Balb/c mice, 8 - 10 weeks of age, were obtained<br />
from Shanghai Laboratory Animal Center (Shanghai<br />
City, China) and maintained under specific pathogenfree<br />
conditions. They were provided with sterilized<br />
food and water ad libitum. All animal experiments<br />
were conducted in accordance with the US National<br />
Institutes of Health guidelines for appropriate use<br />
of experimental animals and approved by Animal<br />
Research and Care Committee at our university.<br />
Preparation of dendritic cell-based vaccine<br />
Dendritic cell-based vaccine was prepared as<br />
described by Lim et al [18] . In brief, bone marrow cells<br />
of Balb/c mice were cultured in complete medium<br />
supplemented with 10 ng/ml recombinant mouse<br />
granulocyte macrophage colony-stimulating factor<br />
(R & D Systems, Minneapolis, MN, USA) and 10 ng/ml<br />
recombinant mouse interleukin-4 (R&D Systems,<br />
Minneapolis, MN, USA). Complete medium consisted<br />
of RPMI-1640 containing 10% heated-inactivated fetal<br />
bovine serum, 2 mmol/l L-glutamine, 100 units/ml<br />
penicillin and 100 μg/ml streptomycin (all from Life<br />
Technologies, Grand Island, NY, USA). On day two,<br />
suspended cells were removed and adherent cells<br />
were cultured in fresh complete medium containing<br />
cytokines. Half of the medium was replaced with<br />
fresh medium containing cytokines every other day.<br />
On day seven, nonadherent and loosely adherent cells<br />
(i.e., immature dendritic cells) were harvested. The<br />
Balb/c-derived renal cell carcinoma cell line (Renca)<br />
was obtained from American Type Culture Collection<br />
(Manassas, VA, USA) and suspended in phosphatebuffered<br />
saline. Renca tumor cell lysate was prepared<br />
by four rapid freeze-thaw cycles (liquid nitrogen,<br />
37 °C water bath). In order to induce dendritic cell<br />
maturation, immature dendritic cells were incubated<br />
with Renca tumor cell lysate at the ratio of three tumor<br />
cells lysate to one dendritic cell in complete medium.<br />
After 8 hours, 10 ng/ml recombinant mouse tumor<br />
necrosis factor-α (R & D Systems, Minneapolis, MN,<br />
USA) and 10 ng/ml recombinant mouse interferon-γ (R<br />
& D Systems, Minneapolis, MN, USA) were added<br />
to induce dendritic cell further maturation. After<br />
incubation for 16 hours, Renca tumor lysate-pulsed<br />
dendritic cells (i.e., mature dendritic cells) were<br />
harvested and used as dendritic cell-based vaccine in<br />
our study. Dendritic cells were evidenced by phenotype<br />
analysis.<br />
Phenotype analysis of dendritic cells<br />
Immature and mature dendritic cells were<br />
harvested, stained with fluorescein isothiocyanatelabeled<br />
anti-CD11c (dendritic cell marker) monoclonal
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 310<br />
antibody (BD PharMingen, San Diego, CA, USA)<br />
and phycoerythrin-labeled anti-CD83 (maturation<br />
marker of dendritic cells) monoclonal antibody (BD<br />
PharMingen, San Diego, CA, USA), and then analyzed<br />
by flow cytometry for expressions of CD11c and CD83<br />
on the cell surface.<br />
Analysis of CD137 expression on T cells<br />
Spleens from Balb/c mice were prepared as cell<br />
suspensions. T cells were isolated from splenocytes<br />
by the use of T cell separation reagents (Miltenyi<br />
Biotec,Auburn, CA, USA). Purified T cells (1 × 10 5 /<br />
well) were cultured alone or with Renca tumor lysatepulsed<br />
dendritic cells (1 × 10 4 /well) in round-bottom<br />
96-well plates, harvested at 24-hour intervals for 7 days,<br />
and stained with fluorescein isothiocyanate-labeled<br />
anti-CD3 (T-cell marker) monoclonal antibody (BD<br />
PharMingen, San Diego, CA, USA) and phycoerythrinlabeled<br />
anti-CD137 monoclonal antibody (BD<br />
PharMingen, San Diego, CA, USA). CD137 expression<br />
on T cells was analyzed by flow cytometry.<br />
Tumor implantation and treatment<br />
The Balb/c mice were inoculated subcutaneously<br />
in the right flank with 5 × 10 5 Renca tumor cells on day<br />
0. After three days, tumor-bearing mice were randomly<br />
divided into four groups. Control group received no<br />
treatment. In dendritic cell-treated group, mice were<br />
immunized subcutaneously in the left flank with<br />
Renca tumor lysate-pulsed dendritic cells (1 × 10 6 ) on<br />
days 3 and 10 [18] . Mice in antibody-treated group were<br />
injected intraperitoneally with anti-CD137 monoclonal<br />
antibody (100 μg; R & D Systems, Minneapolis, MN,<br />
USA) on days 3 and 10. Combination therapy group<br />
received both subcutaneous injection of Renca tumor<br />
lysate-pulsed dendritic cells (1 × 10 6 ) on days 3 and<br />
10, and intraperitoneal administration of anti-CD137<br />
monoclonal antibody (100 μg) on days 6 and 13. The<br />
maximal perpendicular diameters of tumor were<br />
measured using a caliper twice a week, and tumor size<br />
was recorded as tumor area (mm 2 ).<br />
Assessment of T cell proliferation<br />
Control and differently treated mice were killed<br />
20 days after tumor implantation, and spleens were<br />
harvested. T cells were isolated from splenocytes by<br />
the use of T cell separation reagents (Miltenyi Biotec,<br />
Auburn, CA, USA). Purified T cells (1 × 10 5 /well)<br />
were co-cultured with Renca tumor lysate-pulsed<br />
dendritic cells (1 × 10 4 /well) in 96-well plates. On day<br />
five, cultures were pulsed with 1 μCi [3H]thymidine<br />
(PerkinElmer, Waltham, MA, USA) per well for 16<br />
hours. The cells were collected on glass microfiber<br />
filters with a cell harvester. T cell proliferation was<br />
evaluated by measuring [3H]thymidine incorporation<br />
in a liquid scintillation counter. Results were expressed<br />
as counts per minute (cpm).<br />
Cytotoxicity assay<br />
A standard 51 Cr release assay was used to measure<br />
cell-mediated cytotoxicity [19] . In brief, Renca tumor cells<br />
were used as target cells. Target cells were labeled with<br />
51<br />
Cr (PerkinElmer, Waltham, MA, USA) for one hour<br />
at 37 °C and washed three times before use. Spleens<br />
were harvested from control and differently treated<br />
mice 20 days after tumor implantation. CD8 + T cells<br />
were isolated from splenocytes by the use of CD8 + T<br />
cell separation reagents (Miltenyi Biotec, Auburn, CA,<br />
USA), and stimulated in vitro with Renca tumor lysatepulsed<br />
dendritic cells at a 10:1 ratio. After five days,<br />
the primed CD8 + T cells (effector cells) were harvested,<br />
washed twice, and co-incubated with 51 Cr-labeled<br />
Renca tumor cells (target cells) at effector / target cell<br />
ratio of 100:1 in round-bottom 96-well plates. After<br />
four hours of incubation at 37 °C, culture supernatants<br />
were collected and 51 Cr release was measured using a<br />
gamma counter. The percentage of target cell specific<br />
lysis was calculated using the following formula:<br />
[(experimental 51 Cr release - spontaneous 51 Cr release)<br />
/ (maximal 51 Cr release - spontaneous 51 Cr release)] ×<br />
100 [20] . Spontaneous release of 51 Cr was determined by<br />
incubating target cells alone. Maximal 51 Cr release was<br />
obtained by incubating target cells with 1% Triton X-<br />
100 (Sigma-Aldrich, St. Louis, MO, USA).<br />
Measurement of interferon-γ production<br />
Twenty days after tumor implantation, spleens from<br />
control and differently treated mice were harvested.<br />
CD4 + T cells were isolated from splenocytes by the use<br />
of CD4 + T cell separation reagents (Miltenyi Biotec,<br />
Auburn, CA, USA), and stimulated with Renca tumor<br />
lysate-pulsed dendritic cells at a ratio of 10:1 in vitro.<br />
After 24 hours, culture supernatants were collected and<br />
determined for interferon-γ content by enzyme-linked<br />
immunosorbent assay (ELISA) kit (BD PharMingen,<br />
San Diego, CA, USA).<br />
Statistical analysis<br />
The data were presented as mean ± standard<br />
deviation (SD). Two-tailed Student’s t-test was used<br />
for data analysis. A p-value of less than 0.05 was<br />
considered statistically significant. GraphPad Prism<br />
software (GraphPad Software Inc, San Diego, CA,<br />
USA) was used for all statistical analysis.<br />
RESULTS<br />
Characteristics of dendritic cells<br />
As shown in Fig. 1, cultured cells highly expressed<br />
CD11c (dendritic cell marker), suggesting that these<br />
cells were dendritic cells. Renca tumor lysate-pulsed
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Synergy between Dendritic Cell-Based Vaccine and Anti-CD137 Monoclonal ...<br />
<strong>December</strong> <strong>2012</strong><br />
Fig. 1: Phenotype of dendritic cells. The dendritic cells were cultured as described in the methods. Immature and mature dendritic cells<br />
were harvested, stained with fluorescein isothiocyanate-labeled anti-CD11c (dendritic cell marker) monoclonal antibody and phycoerythrinlabeled<br />
anti-CD83 (maturation marker of dendritic cells) monoclonal antibody, and then analyzed by flow cytometry. Expression rates of<br />
CD11c and CD83 in unpulsed dendritic cells (i.e., immature dendritic cells) and Renca tumor lysate-pulsed dendritic cells (i.e., mature<br />
dendritic cells) were 85.9% (i.e., 3.6% + 82.3%) and 3.6%, and 87.1% (i.e., 71.5% + 15.6 %) and 71.5%, respectively.<br />
dendritic cells (i.e., mature dendritic cells) expressed<br />
higher level of CD83 (maturation marker of dendritic<br />
cells), compared with unpulsed dendritic cells (i.e.,<br />
immature dendritic cells).<br />
Tumor lysate-pulsed dendritic cells up-regulate<br />
CD137 expression on T cells<br />
CD137 expression on T cells was measured before<br />
and after stimulation of T cells with Renca tumor<br />
lysate-pulsed dendritic cells. As shown in Fig. 2,<br />
unstimulated T cells showed low expression of CD137.<br />
At three days after stimulation with Renca tumor<br />
lysate-pulsed dendritic cells, T cells increased the<br />
expression of CD137.<br />
Anti-CD137 antibody potentiates the anti-tumor<br />
efficacy of tumor lysate-pulsed dendritic cells<br />
We tested the anticancer effect of tumor lysatepulsed<br />
dendritic cells and anti-CD137 antibody, alone<br />
or in combination, in the subcutaneous Renca tumor<br />
mouse model. As shown in Fig. 3, tumor lysate-pulsed<br />
dendritic cells or anti-CD137 antibody treatment<br />
significantly suppressed tumor growth compared<br />
with control (untreated) group (p < 0.05). However,<br />
the combination therapy with tumor lysate-pulsed<br />
dendritic cells and anti-CD137 antibody resulted in<br />
the greatest inhibition of tumor growth (p < 0.05),<br />
indicating a synergistic anticancer effect of the<br />
combined treatment.<br />
Combination of tumor lysate-pulsed dendritic<br />
cells with anti-CD137 antibody augments T-cell<br />
proliferation<br />
T cells isolated from splenocytes of control<br />
and differently treated mice were assayed for cell<br />
proliferation in response to Renca tumor lysate-pulsed<br />
dendritic cells. As shown in Fig. 4, mice treated with<br />
tumor lysate-pulsed dendritic cells or anti-CD137<br />
antibody alone showed a significant increase in T-cell<br />
proliferation, compared with control group (p < 0.05).<br />
However, co-administration of tumor lysate-pulsed<br />
dendritic cells with anti-CD137 antibody resulted in<br />
stronger cell proliferation than any other groups (p <<br />
0.05).<br />
Combination therapy improves cytotoxic T-<br />
lymphocyte activity<br />
CD8 + T cells isolated from splenocytes of control<br />
and differently treated mice were stimulated in vitro by<br />
co-culture with Renca tumor lysate-pulsed dendritic<br />
cells and analyzed for cytotoxic T-lymphocyte activity.<br />
The cytotoxic T-lymphocyte activity in tumor lysatepulsed<br />
dendritic cells or anti-CD137 antibody-onlytreated<br />
mice was significantly increased in comparison<br />
with control (untreated) mice (p < 0.05) (Fig. 5). The<br />
combination treatment with tumor lysate-pulsed<br />
dendritic cells and anti-CD137 antibody caused a<br />
much higher cytotoxic T-lymphocyte activity than<br />
either monotherapy (p < 0.05) (Fig. 5).
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KUWAIT MEDICAL JOURNAL 312<br />
Fig. 2 A: Up-regulation of CD137 expression on T cells induced by Renca tumor lysate-pulsed dendritic cells. T cells isolated from splenocytes<br />
of Balb/c mice were cultured alone or with Renca tumor lysate-pulsed dendritic cells. At 24-hour intervals for seven days after culture, T cells<br />
were harvested, stained with fluorescein isothiocyanate-labeled anti-CD3 (T-cell marker) monoclonal antibody and phycoerythrin-labeled<br />
anti-CD137 monoclonal antibody, and then analyzed by flow cytometry for expression of CD137. (A) CD137 expression on T cells three days<br />
after culture. Approximately 0.9% of unstimulated T cells expressed CD137. However, 35.2% of T cells expressed CD137 three days after<br />
stimulation with Renca tumor lysate-pulsed dendritic cells. Data were representative of three independent experiments.<br />
Fig. 2 B: Expression kinetics of CD137 on T cells. CD137 expression<br />
peaked on T cells 3 days after stimulation of T cells with Renca<br />
tumor lysate-pulsed dendritic cells.<br />
Tumor lysate-pulsed dendritic cells and anti-CD137<br />
antibody synergistically enhance interferon-γ<br />
production<br />
CD4 + T cells isolated from splenocytes of<br />
control and differently treated mice were assayed<br />
for interferon-γ production in response to Renca<br />
tumor lysate-pulsed dendritic cells. Interferon-γ<br />
production is shown in Fig. 6. Therapy with tumor<br />
lysate-pulsed dendritic cells or anti-CD137 antibody<br />
significantly increased interferon-γ production (p <<br />
0.05), with the highest increase in the combination<br />
treatment (p < 0.05).<br />
Fig. 3: Renca tumor growth in mice treated with tumor lysatepulsed<br />
dendritic cells and anti-CD137 antibody. Balb/c mice<br />
were challenged with a subcutaneous injection of 5 × 10 5 Renca<br />
tumor cells. After three days, tumor-bearing mice were randomly<br />
divided into 4 groups. Each group contained 10 mice. Control<br />
group received no treatment. In dendritic cell-treated group,<br />
mice were immunized subcutaneously with tumor lysate-pulsed<br />
dendritic cells on days 3 and 10. Mice in antibody-treated group<br />
were injected intraperitoneally with anti-CD137 antibody on days<br />
3 and 10. Combination therapy group received both subcutaneous<br />
injection of tumor lysate-pulsed dendritic cells on days 3 and 10,<br />
and intraperitoneal administration of anti-CD137 antibody on days<br />
6 and 13. After tumor cell injection, tumor size was measured twice<br />
a week and recorded as tumor area (mm 2 ). *p < 0.05 versus control<br />
group; **p < 0.05 versus all other groups.
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<strong>December</strong> <strong>2012</strong><br />
Fig. 4: Effect of tumor lysate-pulsed dendritic cells and anti-CD137<br />
antibody on T-cell proliferation. T cells isolated from splenocytes of<br />
Renca tumor-bearing mice (10 per group), which were not treated<br />
or treated with tumor lysate-pulsed dendritic cells, anti-CD137<br />
antibody, or combination of tumor lysate-pulsed dendritic cells with<br />
anti-CD137 antibody, were stimulated in vitro with Renca tumor<br />
lysate-pulsed dendritic cells for five days. These cells were pulsed<br />
with [3H]thymidine for additional 16 hours. T-cell proliferation<br />
was evaluated by measuring [3H]thymidine incorporation. Results<br />
were expressed as counts per minute (cpm). *p < 0.05 versus control<br />
group; **p < 0.05 versus all other groups.<br />
Fig. 6: Enhancement of interferon-γ production by treatment with<br />
tumor lysate-pulsed dendritic cells and anti-CD137 antibody. CD4 +<br />
T cells isolated from splenocytes of Renca tumor-bearing mice (10<br />
per group), which were not treated or treated with tumor lysatepulsed<br />
dendritic cells, anti-CD137 antibody, or combination of<br />
tumor lysate-pulsed dendritic cells with anti-CD137 antibody, were<br />
stimulated in vitro with Renca tumor lysate-pulsed dendritic cells<br />
for 24 hours. Culture supernatants were collected and determined<br />
for interferon-γ content by enzyme-linked immunosorbent assay. *p<br />
< 0.05 versus control group; **p < 0.05 versus all other groups<br />
DISCUSSION<br />
Dendritic cells, the most potent antigen-presenting<br />
cells, have the ability to process and present tumor<br />
antigen to both CD4 + and CD8 + T cells [21] . The<br />
interaction between dendritic cells and T cells induces<br />
Fig. 5: Evaluation of cytotoxic T-lymphocyte activity in tumor lysatepulsed<br />
dendritic cells + anti-CD137 antibody-treated mice. Renca<br />
tumor-bearing mice (10 per group) were not treated or treated with<br />
tumor lysate-pulsed dendritic cells, anti-CD137 antibody, or tumor<br />
lysate-pulsed dendritic cells plus anti-CD137 antibody. CD8 + T cells<br />
(effector cells) isolated from splenocytes of untreated and differently<br />
treated mice were stimulated in vitro with Renca tumor lysatepulsed<br />
dendritic cells for five days, and reacted with 51 Cr-labeled<br />
Renca tumor cells (target cells) at effector/target cell ratio of 100 : 1<br />
for 4 hours at 37°C. Cytotoxic T-lymphocyte activity against Renca<br />
tumor cells was measured by a standard 51 Cr release assay. Results<br />
were expressed as the percentage of target cell lysis. *p < 0.05 versus<br />
control group; **p < 0.05 versus all other groups<br />
proliferation and activation of T cells [11] . Activated<br />
CD8 + T cells become cytotoxic T lymphocyte with<br />
the ability to kill tumor cells [22] . Activated CD4 + T<br />
cells have been shown to provide help for CD8 + T cell<br />
activation by releasing cytokines, such as interferon-γ<br />
and interleukin-2 [23] . Dendritic cell-based vaccines have<br />
been applied clinically for the treatment of metastatic<br />
renal cell carcinoma [12, 24] . However, a number of clinical<br />
studies have displayed limited success [12, 24] . The<br />
CD137 is expressed predominantly on activated CD4 +<br />
and CD8 + T cells [15] . Ligation of CD137 by anti-CD137<br />
monoclonal antibody increases T-cell proliferation<br />
and activation [16] , and prevents activation-induced<br />
death of T cells [25] . It has been reported that treatment<br />
with anti-CD137 antibody leads to regression of wellestablished<br />
tumors in animal models [17, 26] . On the<br />
basis of the reason as mentioned in the introduction,<br />
we postulated that anti-CD137 antibody may enhance<br />
the anti-tumor effect induced by dendritic cell-based<br />
vaccine. Our study showed that T cells up-regulated<br />
CD137 expression after stimulation by tumor lysatepulsed<br />
dendritic cells (i.e., dendritic cell-based<br />
vaccine) (Fig. 2). The result provided scientific basis<br />
for subsequent application of anti-CD137 antibody.<br />
In the present study, we found that combination<br />
therapy with tumor lysate-pulsed dendritic cells and
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KUWAIT MEDICAL JOURNAL 314<br />
anti-CD137 antibody significantly inhibited tumor<br />
growth, compared with a single treatment with tumor<br />
lysate-pulsed dendritic cells or anti-CD137 antibody<br />
(Fig. 3). These data suggest that anti-CD137 antibody<br />
administration improves anti-tumor efficacy of tumor<br />
lysate-pulsed dendritic cells. In addition, we have not<br />
observed apparent side effects in mice treated with<br />
tumor lysate-pulsed dendritic cells and anti-CD137<br />
antibody. The result suggests that combination therapy<br />
is safe.<br />
The anti-tumor immune responses can be<br />
monitored by T-cell proliferation assay, cytotoxicity<br />
test, and cytokine secretion assay [13] . In the present<br />
study, mice immunized with tumor lysate-pulsed<br />
dendritic cells plus anti-CD137 antibody showed<br />
a stronger T-cell proliferation compared with mice<br />
immunized with tumor lysate-pulsed dendritic cells<br />
or anti-CD137 antibody alone (Fig. 4). These findings<br />
indicate that combination treatment promotes T-<br />
cell proliferation. Moreover, cytotoxic T-lymphocyte<br />
activity was higher in mice receiving combination<br />
treatment than in mice treated with tumor lysatepulsed<br />
dendritic cells or anti-CD137 antibody alone<br />
(Fig. 5), suggesting that combination therapy increases<br />
CD8 + T cell activity to kill tumor cells. In cytokine<br />
secretion assay, significantly higher interferon-γ levels<br />
were observed in mice that received combination<br />
therapy than those treated with tumor lysate-pulsed<br />
dendritic cells or anti-CD137 antibody alone (Fig. 6),<br />
implying that combination therapy enhances CD4 + T<br />
cell activity to secrete interferon-γ. The interferon-γ has<br />
been demonstrated to activate CD8 + T cells [23] . After<br />
considering all these results, we think that combination<br />
therapy may augment anti-tumor effect by enhancing<br />
T-cell proliferation and activity.<br />
Tumor cells are known to secrete transforming<br />
growth factor-β (TGF-β), vascular endothelial growth<br />
factor (VEGF), and interleukin-10 (IL-10) [18] . These<br />
tumor-related cytokines can suppress maturation of<br />
dendritic cells in vivo, leading to impaired antigen<br />
presentation and T-cell stimulation, and finally failure<br />
to induce a full anti-tumor immune responses [18, 27, 28] .<br />
As a result, we used in vitro cultured dendritic cells in<br />
the present study. The immature dendritic cells can be<br />
produced in vitro by differentiation of bone marrow<br />
cells by addition of granulocyte macrophage colonystimulating<br />
factor and interleukin-4 for six days [18] .<br />
They can be further differentiated into mature dendritic<br />
cells by addition of maturation stimuli such as tumor<br />
lysate, tumor necrosis factor-α, and interferon-γ [18,29] .<br />
In our study, cultured cells were characterized as<br />
dendritic cells based on high expression of CD11c,<br />
which is a typical dendritic cell marker (Fig. 1). In<br />
clinical trials, immature or mature dendritic cells have<br />
been used for the treatment of renal cell carcinoma [12] .<br />
Recent clinical studies have showed that the use of<br />
mature dendritic cells can generate a better antitumor<br />
efficacy [12] . Thus, we used mature dendritic<br />
cells (i.e., Renca tumor lysate-pulsed dendritic cells)<br />
in our experiment. The mature dendritic cells were<br />
characterized by high expression of CD83 (maturation<br />
marker of dendritic cells) (Fig. 1).<br />
Dendritic cells pulsed with tumor antigens, such<br />
as tumor lysate, defined tumor-associated peptides,<br />
apoptotic or necrotic tumor cells, and tumor RNA<br />
or DNA, are able to induce specific T-cell responses<br />
against tumor cells [30] . The most commonly used tumor<br />
antigen in the clinical studies is tumor lysate [12] . We also<br />
used tumor lysate as tumor antigen in our study. The<br />
use of tumor lysate has unique advantages. It provides<br />
entire repertoire of tumor-associated antigens, thereby<br />
decreasing possibility of tumor escape. In addition,<br />
it also removes the requirement to identify tumorassociated<br />
antigens.<br />
We found that CD137 expression on T cells<br />
reached a peak three days after stimulation of T<br />
cells with tumor lysate-pulsed dendritic cells (Fig.<br />
2B). For this reason, in combination therapy group,<br />
we injected anti-CD137 antibody three days after<br />
treatment with tumor lysate-pulsed dendritic cells.<br />
Some studies have shown that anti-CD137 antibody<br />
at a dose of 100 μg is effective in treating tumors in<br />
mice, such as breast cancer, melanoma, mastocytoma<br />
and myeloma [31, 32] . Consequently, we chose this dose<br />
in renal cell carcinoma mouse model.<br />
CONCLUSION<br />
Our findings present the first evidence that<br />
dendritic cell-based vaccine in combination with anti-<br />
CD137 antibody can enhance anti-tumor effect in<br />
mice bearing renal cell carcinoma by increasing T-cell<br />
proliferation and activity. We propose that combination<br />
therapy may have the clinical applicability in patients<br />
with renal cell carcinoma. Additional clinical trials will<br />
be required to address this issue.<br />
ACKNOWLEDGMENT<br />
This work was supported by grants from the<br />
Qianjiang Talent Project Foundation of Zhejiang<br />
Province (2009-194), and the Scientific Foundation<br />
of Education Department of Zhejiang Province<br />
(Y200805942), China.<br />
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14. Wierecky J, Müller MR, Wirths S, et al. Immunologic<br />
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15. Pollok KE, Kim YJ, Zhou Z, et al. Inducible T cell antigen<br />
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KUWAIT MEDICAL JOURNAL 316<br />
Original Article<br />
The Effect of Gene Polymorphisms (ENOS G894T, PON1<br />
and Catalase -262C→T) on Fertility and Sperm Parameters<br />
in Turkish Men with Clinical Varicocele: A Pilot Study<br />
Cavit Ceylan 1 , Gülay G Ceylan 2 , Hakan Artas 3 , Erdogan Aglamıs 4 , Can Ates 5 , Huseyin Yuce 6<br />
1<br />
3 rd Clinic of Urology, Türkiye Yüksek Ihtisas Training and Research Hospital, Ankara, Turkey<br />
2<br />
Clinic of Genetics, Ankara Atatürk Training and Research Hospital, Ankara, Turkey<br />
3<br />
3 rd Clinic of Radıology, Elazığ Training and Research Hospital, Elazığ, Turkey<br />
4<br />
3 rd Clinic of Urology, Elazığ Training and Research Hospital, Elazığ, Turkey<br />
5<br />
Department of Biostatistics, Faculty of Medicine, University of Ankara, Ankara, Turkey<br />
6<br />
Department of Genetics, Faculty of Medicine, University of Elazığ, Elazığ, Turkey<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 316 - 321<br />
ABSTRACT<br />
Objective: Scrotal varicocele is found to be associated with<br />
increased spermatozoal reactive oxygen species (ROS)<br />
production and decreased seminal plasma antioxidant<br />
activity. Our objective was to search for an association<br />
between male infertility and gene polymorphisms (PON1,<br />
ENOS G894T and Catalase -262C→T).<br />
Design: Controlled prospective study<br />
Setting: Ataturk and Yuksek Ihtisas Education and Training<br />
Hospitals, Ankara, Turkey<br />
Subjects: Forty primary infertile men and forty healthy men<br />
were included in the study. Patients with clinical varicocele<br />
in the study group had no endocrinopathy, no surgery for<br />
varicocele / inguinal hernia, and / or no leukospermia. They<br />
were non-smokers.<br />
Intervention: Doppler ultrasonography (USG) was<br />
performed for the patients. For genetic analysis, 5 ml of<br />
venous blood was drawn into tubes containing EDTA from<br />
each patient.<br />
Main Outcome Measures: Gene polymorphism, progressive<br />
sperm motion and vein diameter<br />
Results: Existence of gene polymorphisms was statistically<br />
important in patients who had clinical varicocele with affected<br />
progressive forward motion. We determined statistically<br />
significant rate of gene polymorphisms in enzymatic<br />
antioxidant defence systems in patients with clinical varicocele,<br />
with a diameter of spermatic vein above 2.2 mm and forward<br />
progressive sperm motion below 32% (p < 0.001).<br />
Conclusions: These polymorphisms might represent risk<br />
factors for Turkish men with clinical varicocele and forward<br />
progressive sperm motion defect. This is a pilot study. We<br />
intend to continue these studies with larger sample sizes to<br />
confirm these findings.<br />
Key words: gene polymorphism, male infertility, oxidative stress, varicocele<br />
INTRODUCTION<br />
Varicocele is an abnormal dilatation of the<br />
spermatic vein, and it is observed in around 30 - 50%<br />
of men in infertile couples [1] . A considerable number<br />
of infertile men have no known mechanism for their<br />
infertility [2] . Several mechanisms which involve the<br />
pathophysiology of testicular dysfunction in the<br />
population with varicocele have been defined. The<br />
other pathophysiological mechanisms of varicocele are<br />
Leydig cell and germinal cell dysfunction due to small<br />
vessel occlusion, testicular hypoxia due to venous stasis,<br />
retrograde flow of adrenal and renal metabolites from<br />
the renal vein into the spermatic vein, increased scrotal<br />
and testicular temperature and decreased secretion of<br />
gonadotropins and androgens [3] . In addition to these,<br />
varicocele also reduces both the seminal and blood<br />
plasma antioxidant defenses [4] . Scrotal varicocele is<br />
found to be associated with increased spermatozoal<br />
reactive oxygen species (ROS) production and<br />
decreased seminal plasma antioxidant activity [5] . Excess<br />
ROS leads to DNA damage and oxidation of lipoprotein<br />
components at the cellular and subcellular level.<br />
Oxidative stress (OS) adversely affects sperm function<br />
by changing membrane fluidity and permeability, and<br />
Address correspondence to:<br />
Gulay G.Ceylan, MD, Department of Medical Genetics, Ankara Atatürk Training and Research Hospital, Ankara, Turkey. Tel: +90 0532 377 87<br />
18, Fax: +90 0312 2912728, E-mail: nil_cey@yahoo.com
317<br />
The Effect of Gene Polymorphisms (ENOS G894T, PON1 and Catalase -262C→T) ...<br />
<strong>December</strong> <strong>2012</strong><br />
impairs sperm functional competence [6] . We searched<br />
for an association between polymorphisms of different<br />
plasma enzymatic antioxidants (PON1, ENOS G894T<br />
and Catalase -262C→T gene polymorphisms) in a<br />
Turkish male population with fertility and varicocele,<br />
based on the impairment of spermatozoa functions<br />
related with increased ROS. This study also aims to<br />
examine, if there is an association between different<br />
plasma enzymatic antioxidants (PON1, ENOS G894T<br />
and Catalase -262C→T gene polymorphisms) and<br />
idiopathic male infertility.<br />
SUBJECTS AND METHODS<br />
Population of the Study<br />
Forty male patients with primary infertility with a<br />
mean age of 36.8 ± 6.91 years and forty healthy men<br />
with a mean age of 41.2 ± 7.63 years were included<br />
in the study. The patients were included in the study<br />
after physical examination by an urologist. Patients,<br />
in whom left-sided grade 2 varicocele was detected,<br />
were evaluated radiologically with scrotal coloured<br />
doppler ultrasonography (USG). After evaluation<br />
with scrotal doppler [7] , patients with clinical varicocele<br />
who had varicose vein with reflux and diameter above<br />
2.2 mm were included in the study group. Patients<br />
were included in the study after 3 - 5 days of sexual<br />
abstinence. Two different laboratory examinations<br />
were performed, at least 15 days apart, and the<br />
sperm parameters were evaluated according to WHO<br />
guidelines [8] . Fertile men were included in the study as<br />
control group. The patients had sperm profiles with a<br />
count of 5 - 55 million/ml, a viscosity with a volume of<br />
2 – 5 ml, normal pH values, and no leukospermia. The<br />
motility was classified as motile a (rapid progressive<br />
motion), motile b (slow progressive motion), motile c<br />
(non-progressive motion), motile d (non-motile sperm<br />
percentiles), motile a + b (32%; progressive sperm<br />
motion) and motile a + b + c (40%; total motion) [8] . The<br />
patients with clinical left-sided varicocele in study<br />
group had no endocrinopathy, no previous surgery<br />
for varicocele or inguinal hernia and no leukospermia.<br />
They were also non-smokers. The study group<br />
consisted of patients who had no child despite regular<br />
sexual intercourse for at least a year. Fertile men were<br />
included in the control group. Informed consent forms,<br />
compatible with the Helsinki declaration, were taken<br />
from the patients and the Institutional Review Board<br />
approved the study.<br />
Genotyping For eNOS G894T Polymorphism<br />
For genetic analysis, 5 ml of blood was drawn into<br />
tubes containing EDTA from each patient. DNA was<br />
extracted using a commercial kit (QIAamp DNA mini<br />
kit; Qiagen, Hilden, Germany). In this study, for the<br />
detection of G894T polymorphism on ENOS gene, we<br />
used primer pairs to amplify a part of the ENOS gene<br />
containing exon 7, by polymerase chain reaction (PCR)<br />
with the following flanking intronic primers: sense<br />
5’CATGAGGCTCAGCCCCAGAAC-3’ and antisense<br />
5’AGTCAATCCCTTTGGTGCTCAC-3’, followed by<br />
Mbo I restriction endonuclease digestion for 16h at 37 °C<br />
and resolution by electrophoresis on 3% agarose gel.<br />
The resulting 206 bp PCR product was cleaved into<br />
two smaller fragments of 119 and 87 bp in the presence<br />
of a T nucleotide at 894 (corresponding to Asp 298) but<br />
not in its absence. Digested fragments were visualized<br />
after ethidium bromide staining under UV light.<br />
Genotyping For Paraoxonase 192 Polymorphism<br />
PON1 genotypes were determined by PCR<br />
according to previously published protocols [9,10] .<br />
For paraoxonase 192 polymorphism, a sense primer<br />
5’TATTGTTGCTGTGGGACCTGAG3’ and antisense<br />
primer 5’ CACGCTAAACCCAAATACATCTC 3’,<br />
which encompasse the 192 polymorphic region of<br />
the human PON1 gene, were used. The PCR reaction<br />
mixture contained 100 ng DNA template, 0.5 M of<br />
each primer, 1.5 mM MgCl2, 200 mM dNTPs and<br />
1 U Taq DNA polymerase (MBI Fermentas). After<br />
denaturing the DNA for 5 min at 94 °C, the reaction<br />
mixture was subjected to 35 cycles of denaturation<br />
for one min at 95 °C, one min annealing at 60 °C and<br />
one min extension at 72 °C, for the 192 genotype.<br />
The 99 bp PCR product was digested with 8U BspI<br />
restriction endonuclease (MBI Fermentas, Lithuania)<br />
overnight at 55 °C, the digested products separated<br />
by electrophoresis on a 4% metaphore agarose gel and<br />
visualized using ethidium bromide. The B-genotype<br />
(arginine) contains a unique BspI restriction site which<br />
results in 66- and 33-bp products and the A genotype<br />
(glutamine) cannot be cut, allowing the PON1 192<br />
genotype to be determined.<br />
Genotyping for catalase - 262C→T polymorphism<br />
Genotyping for the CAT - 262C→T polymorphism<br />
was conducted according to the method described<br />
by Forsberg et al with modifications [11] . PCR<br />
amplification of the associated region of the CAT<br />
gene promotor site was performed using the primers<br />
5’-AGAGCCTCGCCCCGCCGGACCG-3’ (antisense)<br />
and 5’-TAAGAGCTGAGAAAGCATAGCT -3’ (sense)<br />
with a touch-down program designed as follows: 94°C<br />
for 30 s, 68 °C for 45 s, 72 °C for one min, -0.5 °C/cycle,<br />
19 times, then 94 °C for 30 s, 58 °C for 45 s, 72°C for<br />
one min, 25 times. The final elongation step was 10<br />
min at 72 °C. Each reaction mixture (25 ml) contained<br />
approximately 50 ng of DNA template, five units of<br />
Taq DNA polymerase, 1 mM of each primer, 200 mM<br />
dNTPs, 20 mM Tris–HCl (pH 8.4), 50 mM KCl and 1.5<br />
mM MgCl2. For restriction digestion with SmaI, 15 ml<br />
were withdrawn from the amplification mixture and<br />
incubated with five units of the enzyme in the presence
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 318<br />
Table 1: Distribution as per age, sperm motility and varicose vein diameter in study and control groups<br />
Demographic features Patient (n = 40) Control (n = 40)<br />
M ± SD Median M ± SD Median p- value<br />
(Min - Max)<br />
(Min-Max)<br />
Age 36.8 ± 6.91 36 (22 - 49) 41.2 ± 7.63 42 (28 - 56) 0.006**<br />
motile a 16.3 ± 7.99 16 (2 - 35 ) 34.3 ± 16.58 31.5 (11 - 70)
319<br />
The Effect of Gene Polymorphisms (ENOS G894T, PON1 and Catalase -262C→T) ...<br />
<strong>December</strong> <strong>2012</strong><br />
Table 4: Distribution of PON1, ENOS G894T and Catalase -<br />
262C → T gene polymorphisms in fertile and infertile groups<br />
Polymorphism<br />
and group<br />
PON1 Polymorphism<br />
Infertile<br />
Fertile<br />
Normal<br />
n (%)<br />
23 (28.8)<br />
25 (31.2)<br />
ENOS G894T Polymorphism<br />
Infertile<br />
Fertile<br />
24 (30)<br />
29 (36.2)<br />
CATALASE -262C→T Polymorphism<br />
Infertile<br />
Fertile<br />
*p > 0.05<br />
21 (26.2)<br />
24 (30)<br />
Polymorphism<br />
n (%)<br />
17 (21.2)<br />
15 (18.8)<br />
16 (20)<br />
11 (13.8)<br />
19 (23.8)<br />
16 (20)<br />
p- value<br />
0.648 *<br />
0.237 *<br />
0.499 *<br />
of spermatic vein between the infertile and fertile<br />
groups included in the study (p < 0.05, Table 1). The<br />
rates of sperm motility in the patients were 16.32<br />
± 7.99% at a motile sperm, 25.65 ± 6.21% at b motile<br />
sperm, 41.97 ± 10.88% at a + b motile sperm, 17.12 ±<br />
9.21% at c motile sperm and 41.40 ± 12.48% at d motile<br />
sperm. The diameter of scrotal doppler varicose vein<br />
for the patients in study group was 2.81 ± 0.39 mm, it<br />
was 2.1 ± 0.60 mm in the control group (Table 1). The<br />
incidence of PON1, ENOS G894T and Catalase -262C→<br />
T gene polymorphisms were studied in peripheral<br />
blood from all the study participants. PON1 gene<br />
polymorphism was detected in 27 of 80 participants<br />
(33.7%). 16 of them were infertile, 11 of them were<br />
fertile. ENOS gene polymorphism was detected in 32<br />
participants (40%) (17 infertile and 15 fertile). Catalase<br />
- 262C → T gene polymorphism was detected in 35<br />
participants (43.7%). 19 of them were infertile and 16<br />
were fertile (Table 2). The study group consisted of<br />
40 infertile patients with varicocele and the control<br />
group consisted 40 fertile patients. All of the study<br />
group patients had varicocele, but only 12 patients in<br />
control group had varicocele. The distribution of gene<br />
polymorphism in infertile and fertile participants with<br />
varicocele is shown in Table 3. There was no statistically<br />
significant difference in terms of gene polymorphism<br />
(PON1, ENOS G894T and Catalase - 262C → T gene<br />
polymorphisms) between the infertile and fertile<br />
groups (p > 0.05, p-value was 0.648, 0.237 and 0.499<br />
respectively) (Table 4). Similarly, total sperm motion<br />
in all the patients between above 40% and below<br />
40% were compared and no statistically significant<br />
difference was found in terms of gene polymorphisms<br />
(p-value was 0.920, 0.901 and 0.641 respectively)<br />
(Table 5). But, when progressive sperm motion with a<br />
motility above 32% and below 32% were compared in<br />
all of the patients, there was a statistically significant<br />
difference in terms of the three gene polymorphisms<br />
(p-value was 0.001, 0.001 and 0.020 respectively)(Table<br />
5). Spermatic vein diameters of all of the patients<br />
were classified and evaluated. According to this<br />
evaluation, when spermatic vein diameters above 2.20<br />
mm and below 2.20 mm were compared, there was a<br />
statistically significant difference in terms of the gene<br />
polymorphisms (p-value was 0.001, 0.001 and 0.003,<br />
respectively) (Table 5).<br />
DISCUSSION<br />
Oxidative stress results from an imbalance between<br />
production and removal of ROS, leading to both a<br />
steady state concentration of reactive intermediates<br />
higher than normal and to increased cellular<br />
damage. Several studies have shown that there is a<br />
correlation between oxidative stress and impaired<br />
sperm function [12-15] . Although ROS play important<br />
roles in the promotion of spermatozoa capacitation,<br />
hyperactivation, and fusion [16-19] , they must be<br />
controlled to avoid harmful effects [20] . To accomplish<br />
this control, seminal plasma possesses an array of<br />
enzymatic and non-enzymatic defense mechanisms.<br />
Increased ROS generation was reported in 40% of<br />
the general infertile population, compared to 80% in<br />
the infertile varicocele population [21-25] . Despite these<br />
results in the literature, in our study, we determined<br />
that antioxidant gene polymorphisms are associated<br />
with varicose vein diameter and forward progressive<br />
sperm motion rather than fertility (Table 4 and 5). A<br />
relationship has also been detected between oxidative<br />
Table 5: Distribution of gene polymorphisms on progressive sperm motion (32%), total sperm motion (40%) and varicose vein diameter<br />
(> 2.20 mm)<br />
Varicose<br />
vein<br />
diameter<br />
≤ 32<br />
> 32<br />
≤ 40<br />
> 40<br />
≤ 2.20<br />
> 2.20<br />
PON 1 Polymorphism<br />
n (%)<br />
ENOS Polymorphism<br />
n (%)<br />
Catalase Polymorphism<br />
n (%)<br />
Normal Polymorphism p-value Normal Polymorphism p-value Normal Polymorphism p-value<br />
28 (35)<br />
20 (25)<br />
14 (17.5)<br />
34 (42.5)<br />
25 (31.2)<br />
23 (28.8)<br />
30 (37.5)<br />
2 (2.5)<br />
9 (11.2)<br />
23 (28.8)<br />
9 (11.2)<br />
29 (36.2)<br />
0.001<br />
0.920<br />
<strong>December</strong> <strong>2012</strong><br />
stress, semen characteristics and clinical diagnosis in<br />
investigated infertile patients. It is reported that the<br />
total antioxidant levels in patients with idiopathic<br />
infertility, varicocele, vasectomy reversal and infection<br />
with varicocele were significantly less than those in<br />
the fertile control group [26] . The association between<br />
varicocele and infertility is well-known. Frequently,<br />
men with varicocele have an abnormal spermiogram<br />
that usually improves after repair [27,28] . ROS production<br />
is usually high in those with a varicocele and improves<br />
after varicocelectomy [26,29] . In addition, exposure to<br />
cigarette smoke, a source of free radicals, contributes<br />
to a deterioration of the spermiogram in patients with<br />
a varicocele [30] . The total antioxidant capacity might<br />
also contribute strongly to the pathophysiology of<br />
male infertility, irrespective of the clinical diagnosis.<br />
Many findings support that male infertility associated<br />
with scrotal varicocele is at least in part related to<br />
oxidative stress. Varicocele patients were detected to<br />
have decreased antioxidant defenses both at the local<br />
(seminal plasma) and systemic (blood plasma) levels [21] .<br />
Barbieri et al measured the total antioxidant potential<br />
defenses, not individually, of varicocele patients in both<br />
seminal plasma and in systemic circulation. They report<br />
that the antioxidant defenses decrease in both of them.<br />
They conclude that varicocele-associated oxidative<br />
stress is evident not only at the local site but also at the<br />
systemic levels [21] . According to Ichioka et al, individual<br />
susceptibility to varicocele-induced ROS may depend<br />
on one or more of these genetic polymorphisms and<br />
that the outcome of varicocelectomy may be influenced<br />
by an individual’s genetic susceptibility to ROS [31] .<br />
In our study, there was no statistically significant<br />
difference for gene polymorphisms between study<br />
and control group (Table 4), but it was significant in<br />
patients with varicocele who had a vein diameter of<br />
above 2.2 mm and forward progressive sperm motion<br />
below 32% (Table 5). Increased ROS production can<br />
deplete the defenses present in the testes and in<br />
seminal plasma. For example, it has been reported<br />
that total reactive antioxidant potential (TRAP) in the<br />
internal spermatic vein (measured during surgery)<br />
is significantly lower than in a peripheral vein [32] .<br />
Varicocele reduces both the seminal and blood<br />
plasma antioxidant defenses. In order to further<br />
stress the relationship between local and systemic<br />
defenses depletion, average values are plotted for the<br />
different groups. One study shows that there is a good<br />
correlation between both sets of values. This is the<br />
first instance in which it is established that a systemic<br />
decrease in antioxidant defenses is present in those<br />
with a varicocele [33] . It is difficult to determine if the<br />
systemic decrease is reflected in the seminal levels or<br />
in systemic circulation [33,34] . Increased reactive oxygen<br />
radicals in systematic circulation cause negative<br />
effects on sperm function. This implies that significant<br />
KUWAIT MEDICAL JOURNAL 320<br />
antioxidant consumption at the testis level can be<br />
related to the increased ROS production [21] . The results<br />
discussed above suggest that antioxidant defenses<br />
could be depleted both locally and systemically in<br />
varicocele patients. In particular, it was considered<br />
important to establish if oxidative stress indicators<br />
are modified and non-enzymatic antioxidants are<br />
depleted in seminal and blood plasma of varicocele<br />
patients [32] . In our study, we used peripheral blood<br />
both in the study group (infertile patients) and the<br />
control group (fertile group), because using the<br />
specimen from the varicose vein of the control group<br />
was an ethical concern. We determined statistically<br />
significant rate of gene polymorphism in enzymatic<br />
antioxidant defence systems in patients with clinical<br />
varicocele, with a diameter of spermatic vein above 2.2<br />
mm and forward progressive sperm motion below 32%.<br />
But, we could not determine any significant difference<br />
in terms of gene polymorphisms in our infertile study<br />
group compared to fertile control group. There was<br />
also no statistically significant difference in patients<br />
with total sperm motion (below and above 40%). This<br />
is a controlled prospective study and it is also the<br />
first study which searches the association between<br />
infertility and gene polymorphism of enzymatic<br />
antioxidant defense system. Although our patient and<br />
control group is small, this is the first pilot study which<br />
includes patients with fertility and infertility, their<br />
sperm features (progressive and total sperm motion)<br />
and spermatic vein diameter (with and without<br />
varicocele) in literature. We want to continue the study<br />
with larger groups in future. Perhaps then, we will<br />
also find a relationship between infertility and gene<br />
polymorphism as the number of the patients increase.<br />
CONCLUSION<br />
Antioxidant gene polymorphisms can be detected<br />
in fertile and infertile men with varicocele. It would be<br />
important to investigate whether these polymorphisms<br />
can take place in fertile and / or infertile men with<br />
varicocele. These polymorphisms might represent<br />
a risk factor for Turkish men with clinical varicocele<br />
and forward progressive sperm motion. This is a pilot<br />
study. We intend to continue these studies with a larger<br />
sample size to confirm these findings.<br />
Declaration: The authors had no conflict of interest.<br />
REFERENCES<br />
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2. Safarinejad MR, Shafiei N, Safarinejad S. The role of<br />
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6. Shamsi MB, Venkatesh S, Kumar R, Gupta NP, Malhotra<br />
N, Singh N. Antioxidant levels in blood and seminal<br />
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7. Hamm B, Fobbe F, Sorensen R, Felsenberg D. Varicoceles:<br />
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8. World Health Organization (2010) Laboratory manual<br />
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9. Humbert R, Adler DA, Disteche CM, Hassett C,<br />
Omiecinski CJ, Furlong CE. The molecular basis of the<br />
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Nature Genet 1993; 3:73-76.<br />
10. Adkins S, Gan KN, Mody M, La Du BN. Molecular<br />
basis for the polymorphic forms of human serum<br />
paraoxonase/arylesterase glutamine or arginine at<br />
position 191, for the respective A or B allozymes. Am J<br />
Hum Genet 1993; 52:598-608.<br />
11. Forsberg L, Lyrenas, L, de Faire U, M<strong>org</strong>enstern R. A<br />
common functional C-T substitution polymorphism<br />
in the promoter region of the human catalase gene<br />
influences transcription factor binding, reporter gene<br />
transcription and is correlated to blood catalase levels,<br />
Free Radic Biol Med 2001; 30:500-505.<br />
12. Mazzilli F, Rossi T. Marchesini M. Superoxide anion<br />
in human semen related to seminal parameters and<br />
clinical aspects. Fertil Steril 1994; 62:862-868.<br />
13. Zini A, de Lamirande E. Gagnon C. Reactive oxygen<br />
species in semen of infertile patients: levels of superoxide<br />
dismutase-and catalase-like activities in seminal plasma<br />
and spermatozoa. Int J Androl 1993; l6:183-188.<br />
14. Agarwal A, Ikemoto Y, Loughlin KR. Relationship of<br />
sperm parameters with levels of reactive oxygen species<br />
in semen specimens. J Urol 1994;152:107-110.<br />
15. Aitken J. A free radical theory of male infertility. J<br />
Reprod Fertil Rev 1994; 6:19-24.<br />
16. Aitken I, Fisher H. Reactive oxygen species generation<br />
and human spermatozoa: the balance of benefit and<br />
risk. BioEssays 1994; 16:259-267.<br />
17. Griveau JF, Renard P, LeLannou D. An in vitro<br />
promoting role for hydrogen peroxide in human sperm<br />
capacitation. Int J Androl 1994; 17:300-307.<br />
18. de Lamirande E, Gagnon C. Capacitation-associated<br />
production of superoxide anion by human spermatozoa.<br />
Free Rad Biol Med 1995; 18:4871-4895.<br />
19. de Lamirande E, Gagnon C. Paradoxical effect of<br />
reagents for suifflydryl and disulfide groups on human<br />
sperm capacitation and superoxide production. Free<br />
Rad Biol Med 1998; 25:803-817.<br />
20. Pasqualotto FF, Sharma RK, Nelson DR, Thomas AJ,<br />
Agarwal A. Relationship between oxidative stress,<br />
semen characteristics, and clinical diagnosis in men<br />
undergoing infertility investigation. Fertil Steril 2000;<br />
73:459-464.<br />
21. Barbieri ER, Hidalgo ME, Venegas A, Smith R, Lissi<br />
EA. Varicocele- associated decrease in antioxidant<br />
defenses. J Androl 1999; 20:713-717.<br />
22. Lewis SE, Boyle PM, McKinney KA, Young IS,<br />
Thompson W. Total antioxidant capacity of seminal<br />
plasma is different in fertile and infertile men. Fertil<br />
Steril 1995; 64:868-870.<br />
23. Thiele JJ, Freisleben Hi, Fuchs I, Ochsendorf FR. Ascorbic<br />
acid and urate in human seminal plasma: determination<br />
and interrelationships with chemiluminescence in<br />
washed semen. Hum Reprod 1995; 10:110-115.<br />
24. Smith R, Vantman D, Ponce J, Escobar J, Lissi E. Total<br />
antioxidant capacity of human seminal plasma. Hum<br />
Reprod 1996; 11:1655-1660.<br />
25. Mancini A, Conte G, Milardi D, De Marinis L, Littarru<br />
GP. Relationship between sperm cell ubiquinone<br />
and seminal parameters in subject with and without<br />
varicocele. Andrologia 1998; 30:1-4.<br />
26. Schlesinger MH, Wilts IE, Nagler HM. Treatment<br />
outcome after varicocelectomy. A critical analysis. Urol<br />
Clin N Am 1994; 21:517-529.<br />
27. Vazquez-Levin MH, Friedmann F, Goldberg SI, Medley<br />
NE, Nagler HM. Response of routine semen analysis<br />
and critical assessment of sperm morphology by<br />
Kruger classification to therapeutic varicocelectomy. J<br />
Urol 1997; 158:1804-1807.<br />
28,. Weese DL, Peaster ML, Kyle KH, Leach GE, Lad PM,<br />
Zimmern PE. Stimulated reactive oxygen species<br />
generation by the spermatozoa of infertile men. J Urol<br />
1993; l49:64-67.<br />
29. Chia SE. Xu B. Ong CN, Tsakok FHM, Lee ST. Effect<br />
of cadmium and cigarette smoking on human semen<br />
quality. Int J Fertil Menopausal Stud 1994; 39:292-298.<br />
30. Hendin BN, Kolettis PN, Sharma RK, Thomas AJ Jr,<br />
Agarwal A. Varicocele is associated with elevated<br />
spermatozoal reactive oxygen species production and<br />
diminished seminal plasma antioxidant capacity. J Urol<br />
1999; 161:1831-1834.<br />
31. Ichioka K, Nagahama K, Okubo K, Soda T, Ogawa O,<br />
Nishiyama H. Genetic polymorphisms in glutathione<br />
S-transferase T1 affect the surgical outcome of<br />
varicocelectomies in infertile patients. Asian J Androl<br />
2009; 11:333-341.<br />
32. Lissi EA, Salim-Hanna M, Pascual C, del Castillo MD.<br />
Evaluation of total antioxidant potential (TRAP) and<br />
total antioxidant reactivity from luminol enhanced<br />
chemiluminescence measurements. Free Rad Biol Med<br />
1995; 2:153-158.<br />
33. Brichta M, Lutz H, Ploese J, Kappus H. Beneke R.<br />
Behn C. Lipid peroxide- related hemodilution during<br />
repetitive hyperbaric oxygenation. Adv Exp Med Biol<br />
1994; 345:189-194.<br />
34. Mulholland CW, Strain JJ. Total radical-trapping<br />
antioxidant potential (TRAP) of plasma. effects of<br />
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Vitam Nutr Res 1993; 63:27-32.
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 322<br />
Insight<br />
Ward Mechanical Ventilation (WMV) Audit<br />
Sulaiman Khadadah 1 , Maryam Al-Ali 1 , Mohamed Bahzad 2<br />
1<br />
Department of Medicine, Mubarak Hospital, Ministry of Health, Kuwait<br />
2<br />
Department of Anesthesia and Intensive care, Mubarak Hospital, Ministry of Health, Kuwait<br />
ABSTRACT<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 322 - 325<br />
Objective: To look at the characteristics and mortality of<br />
mechanically ventilated patients on a general medical ward.<br />
The purpose of this audit is to evaluate this practice and<br />
also help clarify the need for “do not resuscitate” orders in<br />
Kuwait.<br />
Design: Prospective, observational audit<br />
Setting: Mubarak Al-Kabeer Hospital, Ministry of Health,<br />
Kuwait<br />
Subjects: Mechanically ventilated patients on medical wards<br />
in Mubarak Al-Kabeer Hospital over a six-month period<br />
Intervention: Mechanical ventilation<br />
Main Outcome Measures: Primary outcome was death and<br />
secondary outcome was extubation<br />
Results: Eighty-one patients met the inclusion criteria. Most<br />
patients had over three medical problems with a high number<br />
of patients having brain dysfunction, cancer and end-stage<br />
diseases. The mortality rate was 95%.<br />
Conclusion: There is great need to further look into this<br />
practice which appears to be highly fatal. There is evidence<br />
for the need to introduce a “do not resuscitate” policy in<br />
Kuwait, which is an ethical necessity in the practice of<br />
medicine.<br />
KEY WORDS: mechanical ventilation, medical ward, resuscitation<br />
INTRODUCTION<br />
Ever since the creation of the first positive pressure<br />
mechanical ventilator in the 19 th century there has been<br />
a constant demand for it in hospitals around the world.<br />
The number of patients requiring such devices has also<br />
grown exponentially since that time. The outcome of<br />
patients on mechanical ventilation even in specialized<br />
centers, like the Intensive Care Unit (ICU) has been<br />
inconsistent due to a variety of causes [1] .<br />
Due to limited resources and the increasing demand<br />
for ICU beds with no “do not resuscitate (DNR)” policy,<br />
for the past 10 years in Kuwait, we have selectively<br />
placed some patients on mechanical ventilators in<br />
the general medical wards. Most of these patients<br />
are usually those on medical grounds “should not<br />
have been resuscitated or intubated” due to predicted<br />
poor prognosis. The aim of this audit was to look at<br />
the mortality of these patients who are mechanically<br />
ventilated in the medical wards in Mubarak Al-Kabeer<br />
Hospital, Kuwait (MKH).<br />
MKH is a secondary referral hospital servicing<br />
approximately one third of the population of Kuwait<br />
(1 million inhabitants). It has a total of 450 beds of<br />
which 186 are allocated to adult medical patients. To<br />
the best of our knowledge, there are very few countries<br />
in the world that do not have a DNR policy and<br />
selectively place poor prognosis patients on invasive<br />
mechanical ventilation in the general medical ward.<br />
This is the first time in Kuwait that the mortality and<br />
characteristics of such patients has been reviewed<br />
systematically.<br />
SUBJECTS AND METHODS<br />
We collected data from the general medical wards<br />
in MKH over a six-month period starting from 1 st May<br />
to 31 st October, 2010. The need for written consent<br />
and ethical approval was waived by the local hospital<br />
administration due to the observational nature of the<br />
study. Mechanical ventilation (MV) was either through<br />
a tracheostomy or an endotracheal tube.<br />
We included all patients that were placed on<br />
mechanical ventilation in the medical wards that<br />
survived at least two hours from onset of MV. Since all<br />
patients unselectively receive CPR and are intubated<br />
during the process, we chose two hours as the minimal<br />
survival time post MV. This is to ensure that we are<br />
measuring the mortality of patients on MV in the ward<br />
rather than the mortality of cardiac arrest patients<br />
in the hospital, who are usually intubated during<br />
resuscitation.<br />
Address correspondence to:<br />
Sulaiman Khadadah, MB Bch, BAO, Department of Medicine, Mubarak Al-Kabeer Hospital, Kuwait. P O Box 15081 Al-Daeyah, Kuwait.<br />
Tel: +1 514 880 7484, E-mail: Khadadas@tcd.ie
323<br />
Ward Mechanical Ventilation (WMV) Audit<br />
<strong>December</strong> <strong>2012</strong><br />
The following exclusion criteria were used:<br />
1. Patient on home mechanical ventilator admitted to<br />
hospital<br />
2. Patients on MV in the ward prior to 1 st May 2010<br />
3. Patients transferred to ICU or CCU (coronary care<br />
unit) within 48 hours<br />
The decision to transfer a patient to the ICU or<br />
keep him in the ward was made by the ICU doctors<br />
on call for that evening, and was based on the patient's<br />
previous medical history and the perceived benefit<br />
from MV, resuscitation or further ICU management.<br />
By visiting the wards every 48 hours and reviewing<br />
the patient’s charts, we collected data about the age,<br />
reason for MV and admission, number of days on<br />
MV and number of days to onset of MV, past medical<br />
history, and location of patients. The reason for<br />
admission was recorded as per the admission sheet.<br />
The reason for MV was recorded as the reason written<br />
at the time of intubation. If the reason for MV was<br />
changed to a more specific one during follow-up, the<br />
reason for MV was changed accordingly. The primary<br />
outcome was death. The secondary outcome was<br />
extubation, which was defined as being disconnected<br />
from mechanical ventilation for a two-week period. If<br />
the patient was reconnected to a ventilator during the<br />
course of the same admission, the period of mechanical<br />
ventilation was considered as one prolonged period.<br />
Unfortunately the final cause of death was not recorded<br />
due to great uncertainty in the cause of death in<br />
many of these patients as well as lack of post-mortem<br />
examination. Therefore, this data was not collected.<br />
The investigators had no input regarding any aspect<br />
of management of the patients.<br />
RESULTS<br />
Over the six-month period, 81 patients were placed<br />
on MV in the ward that met the inclusion criteria.<br />
Complete data were collected for all patients. The<br />
background medical history was grouped into related<br />
diseases for ease of collection and to compare patient’s<br />
characteristics.<br />
Out of the 81 patients that were reviewed, only<br />
four had met the survival criteria achieving an overall<br />
survival of 5% and a mortality of 95% for patients on<br />
MV in the medical ward. Two of the survivors died<br />
during the course of the same admission. Twenty-five<br />
patients survived less than 48 hours (31% of patients),<br />
and 56 survived over 48 hours (69%).<br />
The patients were almost equally divided between<br />
the medical wards. The ratio of male to female patients<br />
was 1:1 (40 patients). The average age of patients was<br />
70.9 years with over 80% of patients being over 60<br />
years (age range 15 – 92 years). The mean number<br />
of medical co-morbidities between male and female<br />
patients was four (mode 5, median 4). 61% of patients<br />
had four or more medical conditions (Fig. 1). All the<br />
Fig. 1: Percentage of patients and associated number of medical<br />
conditions. This bar chart shows the percentage of patients and<br />
their associated number of diseases. Most patients had four or more<br />
diseases.<br />
survivors had three or less medical conditions. The<br />
commonest diseases were hypertension (68%) and<br />
diabetes (60%), both present in over 60% of patients.<br />
Chronic kidney disease (CKD), ischemic heart disease<br />
(IHD), chronic obstructive pulmonary disease (COPD),<br />
interstial lung disease (ILD), stroke, and cancer were<br />
also found to be present in many of the patients (Fig.<br />
2). The commonest reason for MV was cardiac arrest<br />
followed by decreased level of consciousness and then<br />
desaturation (Table 1).<br />
Table 1: Indication for mechanical ventilation<br />
Indication for MV Patients %<br />
Cardiac arrest 24 29.6<br />
Decreased level of consciousness 19 23.5<br />
Desaturation 14 17.3<br />
Pneumonia 8 10.0<br />
Septic shock 6 7.4<br />
Left ventricular failure 3 3.7<br />
Dyspnea 1 1.2<br />
Pulmonary embolus 1 1.2<br />
Myocardial infarction 1 1.2<br />
Gastrointestinal bleed 1 1.2<br />
Fit 1 1.2<br />
Surgery 1 1.2<br />
Unknown 1 1.2<br />
The mean length of MV was 20 days and the mean<br />
time to onset of MV from admission was 18 days.<br />
There were 61 (75%) patients in cubicles (a four-bed<br />
room with no door and glass windows on either side<br />
that lets the nurses see the patient from the corridor)<br />
and 30 (25%) patients in private rooms.<br />
Cost analysis for the 81 patients for one year<br />
was estimated at over a quarter of a million Kuwaiti
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 324<br />
Fig. 2: Prevalence of medical conditions excluding HTN and DM.<br />
This bar chart shows the prevalence of each disease among the<br />
study population.<br />
dinars / year. Average cost of running a mechanical<br />
ventilation bed on the general medical floor was<br />
calculated to be approximately 85 KD / day which<br />
is only 5 KD over the average cost of normal general<br />
medical bed. Also included into the calculation was<br />
the average cost of expected laboratory and imaging<br />
investigations over that period. This is considered to<br />
be a large underestimate, given the fact that cost of<br />
manpower, medication and the cost of redirection and<br />
utilization of other resources for other patients that<br />
need medical beds was not taken into account in this<br />
estimation.<br />
DISCUSSION<br />
There is very little literature that evaluates the<br />
mortality of patients on mechanical ventilation outside<br />
specialized units like the ICU and CCU. This is mainly<br />
due to the rarity of this clinical scenario in the world<br />
and the general consensus that mechanically ventilated<br />
patients need a higher degree of specialized care.<br />
The mortality rate obtained in this audit was<br />
staggering. At first glance, it seems that mechanically<br />
ventilating a patient on the ward is almost a sure death<br />
sentence for the patient, especially when compared<br />
to the mortality of medical patients that received<br />
mechanical ventilation in the ICU (30%, obtained form<br />
the ICU, MKH mortality census for May to October of<br />
the same year). Looking at the number of the medical<br />
conditions the ventilated patients in the ward had, it<br />
was found that over 84% of them had three or more<br />
medical conditions with a high percentage having<br />
brain dysfunction (dementia, mental retardation or<br />
stroke), cancer and end-stage diseases. These figures<br />
raise many questions and concerns. Why is the<br />
mortality rate of these patients so high? Could it be<br />
due to suboptimal quality of care received by these<br />
patients, our very aggressive resuscitation efforts,<br />
lack of a DNR policy or any selection bias by ICU not<br />
admitting patients they thought will not survive.<br />
Through literature search, we found two articles<br />
that examined at similar problems [2,3] . In both studies,<br />
the authors compared the mortality rate of patients<br />
on invasive MV in the ICU and in the general medical<br />
ward. They showed significant difference in mortality<br />
/ survival of ICU to non-ICU ventilated patients in<br />
favor of ventilation in the ICU.<br />
We compared the care that our patients received<br />
to the care received in the study by Lieberman et al [2] .<br />
The patients in the general medical ward in MKH are<br />
generally examined three times per day. Only one time<br />
a day are they seen by the ICU personnel, who are<br />
trained to deal with mechanically ventilated patients<br />
and can adjust the ventilator to meet the patient’s<br />
needs. The rest of the visits, if any, are done by medical<br />
personnel who have limited experience in dealing with<br />
mechanical ventilators. With regard to nursing care,<br />
the nurse assigned to each patient is looking after 3<br />
- 4 other patients at the same time. They have minimal<br />
expertise in dealing with mechanically ventilated<br />
patients. The patients were also placed in different<br />
rooms including private rooms that are isolated<br />
from the nurse’s station. Lieberman and colleagues [2]<br />
reported a mortality of 68% in patients who were<br />
ventilated in the ward. Their patients were seen five to<br />
six times per day including a visit at night by personnel<br />
who were skilled in managing ventilator patients and<br />
the patients were cared for in one room with a nurse<br />
skilled in their management. Therefore, it seems that<br />
care might have contributed to our higher mortality<br />
outcome and although our audit was observational<br />
and not designed specifically to detect difference in<br />
the outcome based on care, it seems unlikely that this<br />
difference in mortality can be explained by quality of<br />
care alone especially when looking at Lieberman [2] ,<br />
and Hersch [3] patient exclusion criteria.<br />
In contrast to our audit, both studies of Lieberman [2] ,<br />
and Hersch [3] excluded DNR patients and those who<br />
are unlikely to survive over six months. On the other<br />
hand, our study sample was almost entirely made up<br />
of patients who on medical grounds, as judged by ICU<br />
doctors, should not have been resuscitated. Examples<br />
are stroke patients, patients with metastatic cancers,<br />
end-stage heart and lung diseases, which contributed<br />
to our much higher mortality rate. Currently in<br />
Kuwait, we have no DNR orders and when these<br />
patients deteriorate, they are resuscitated for purely<br />
medico-legal or religious purposes. This we deem as a<br />
highly unethical practice.<br />
One could also argue that there is obvious selection<br />
bias of leaving patients that were perceived “will do<br />
worst” to the ward, therefore increasing the mortality<br />
rate in the ward, which is true especially because
325<br />
Ward Mechanical Ventilation (WMV) Audit<br />
<strong>December</strong> <strong>2012</strong><br />
the method of selection was not standardized in the<br />
hospital and was left to the discretion of the ICU<br />
doctor. The counter argument to that is, selection was<br />
based on medical judgment of futility and not only on<br />
resource allocation, and therefore, ICU doctors were<br />
correct 95% of the time in selecting patients that were<br />
judged not to benefit from initial resuscitation and<br />
transfer to the ICU.<br />
It is likely that both suboptimal care and aggressive<br />
resuscitation contributed to the high mortality rate<br />
obtained in this audit. The results of this audit cannot<br />
with certainty determine the exact cause of this high<br />
mortality, because our data was very heterogeneous<br />
and will not allow firm conclusions to be made.<br />
However, the data obtained in this audit is a very<br />
strong proof that we are not benefiting these patients by<br />
resuscitating them and leaving them on the ward. On<br />
the contrary, we are simply prolonging the inevitable<br />
and causing the patient a great deal of harm through the<br />
process of ventilation. Also, it results with a negative<br />
psychological impact on the family by allowing them to<br />
see their relatives in this situation while they are being<br />
falsely reassured that their relative will become better.<br />
There are also obvious massive economic implications<br />
associated with this practice.<br />
Through the decades, physicians have come to<br />
recognize their limitations. They look at the quality of<br />
life of patients that have end-stage disease rather than<br />
simply ensuring that patients have a heart beat and<br />
a recordable blood pressure. Around the world, the<br />
laws have adopted these changes, but unfortunately<br />
in Kuwait, we are still lagging behind in this very<br />
crucial matter due to medical, social and especially<br />
religious misconceptions. Religion has been a powerful<br />
driving force influencing enactment of many polices<br />
in Kuwait. Although it is not in our ability to make<br />
recommendations about religious aspects of ‘end<br />
of life’ policies, it would make sense that the role of<br />
religion is to empower doctors to make a decision for<br />
or against DNR and we have found that, contrary to<br />
popular societal beliefs, Islam does indeed support<br />
the practice of DNR [4] . Patients family and doctors<br />
are paying the price, not only through spending our<br />
limited resources, but also by patient's losing faith in<br />
local medical practice. This loss in faith has resulted<br />
in large number of people looking for medical care<br />
outside Kuwait.<br />
CONCLUSION<br />
It is clear from this audit that ventilating a patient<br />
out of the ICU in our hospital is fatal. Although the<br />
exact reasons for this high mortality rate cannot be<br />
determined from our data, there is overwhelming<br />
evidence that we need to update our laws regarding<br />
DNR (medical, legal, and religious cooperation). Lastly,<br />
we need to further study the characteristics of these<br />
patients who end up ventilated on the general medical<br />
ward in order to make the proper recommendations on<br />
how to improve their survival.<br />
REFERENCES<br />
1. Task Force of the American College of Critical Care<br />
Medicine, Society of Critical Care Medicine. Guidelines<br />
for intensive care unit admission, discharge, and triage.<br />
Crit Care Med 1999; 27:633-638.<br />
2. David Lieberman, Liat Nachshon, Oleg Miloslavsky, et<br />
al. Elderly patients undergoing mechanical ventilation<br />
in and out of intensive care units: a comparative,<br />
prospective study of 579 ventilations. Critical Care<br />
Forum 2010.<br />
3. Moshe Hersch, Moshe Sonnenblick, Alexander Karlic,<br />
et al. Mechanical ventilation of patients hospitalized<br />
in medical wards Vs the intensive care unit - an<br />
observational, comparative study. J Crit Care 2007;<br />
22:13-17.<br />
4. Fatwa # (12086) the Saudi Committee for Fatwa &<br />
Islamic Affairs 2000, http://www.ispub.com/journal/<br />
the_internet_journal_of_health/volume_7_number_1_<br />
5/article/an_islamic_medical_and_legal_prospective_<br />
of_do_not_resuscitate_order_in_critical_care_<br />
medicine.html
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 326<br />
Case Report<br />
Unusual Presentation of Duplex Collecting<br />
System: A Case Report<br />
Mukesh Kumar Vijay, Preeti Vijay, Pramod Kumar Sharma<br />
Department of Urology, IPGME & R, 242 AJC Bose Road, Kolkata, West Bengal, India<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 326 - 328<br />
ABSTRACT<br />
Duplex collecting systems (also known as duplicated<br />
collecting systems) can be defined as renal units containing<br />
two pyelo-caliceal systems that are associated with a single<br />
ureter or double ureters. The two ureters empty separately<br />
into the bladder or fuse to form a single ureteral orifice. We<br />
came across a case in which the diagnosis was in dilemma<br />
until actual surgery when it was finally diagnosed as a case<br />
of duplex collecting system.<br />
KEY WORDS: duplicated collecting system, reterograde pyelogram<br />
INTRODUCTION<br />
Complete duplication of ureters occurs in 0.2% of<br />
live births; the chance of occurrence is 12% in firstdegree<br />
relatives of persons with this condition. The<br />
prevalence of partial duplication found on urograms is<br />
0.6% [1] . We encountered such a case that was initially<br />
diagnosed as infection of the upper urinary tract.<br />
However, subsequent investigation diagnosed it as a<br />
case of complex renal cyst. Finally, intra-operatively the<br />
case could be correctly diagnosed as a case of duplex<br />
collecting system.<br />
CASE HISTORY<br />
A 40-year-old patient presented to our outpatient<br />
department with complaints of dull aching<br />
pain occurring in the right flank region since the<br />
last six months. There was no history of hematuria.<br />
On examination the right kidney was palpable. An<br />
ultrasound examination of the patient revealed a<br />
single, irregular shaped cyst of size 104.2 x 66.1 mm<br />
with echogenic fluid in the lumen, in upper cortex<br />
of the right kidney. Intravenous urography showed<br />
the upper and middle calyx of the right kidney to be<br />
displaced in an arc-like fashion, suggestive of a cyst / mass<br />
lesion of the right kidney (Fig. 1). Keeping a provisional<br />
diagnosis of renal cyst in mind the patient was advised<br />
a contrast enhanced CT scan of the abdomen and pelvis<br />
which showed a thick walled, lobulated cystic lesion<br />
with thin peripheral calcification and few internal<br />
septa, measuring 82.5 x 64.77 x 100 mm arising from<br />
the anterior aspect of the right kidney (Fig. 2). The<br />
wall of the cyst and the internal septa were seen to<br />
enhance post- contrast. With the diagnosis of complex<br />
renal cyst (Bosnaick’s type 3) the patient was posted<br />
for partial / radical nephrectomy. A reterograde<br />
pyelogram done during the operation showed upper<br />
calyx of the right kidney to be arc-like, besides a<br />
faintly opacified grossly dilated pelvi-calyceal system<br />
inferior to the arched upper calyx (Fig. 3). It was at<br />
this time that the possibility of a duplex renal system<br />
occurred to us. On exploration the patient was found<br />
to have a duplicated pelvi-calyceal system with<br />
duplex upper ureter (Fig. 4). The lower system had a<br />
very short ureter along with obstruction of the pelviureteric<br />
junction. The lower pelvi- calyceal system<br />
was grossly dilated. However, the upper system was<br />
not dilated. The narrowed pelvi-ureteric junction and<br />
the short lower ureter were excised and the pelvis of<br />
the lower system was anastomosed in an end to side<br />
fashion to the ureter of the upper system. Postoperative<br />
recovery was uneventful and the patient was found<br />
to be progressing well during follow-up.<br />
Differential diagnoses considered in this case<br />
were:<br />
Complex renal cyst (Bosnaick’s type 3)<br />
Infected cyst ( abcess or antibioma)<br />
Duplex kidney with non-functioning lower pole<br />
Address correspondence to:<br />
Dr Mukesh kumar Vijay, M ch, Asst. Professor, IPGMER & SSKM Hospital, 242 AJC Bose Road, Kolkata, India 700020. E-mail:<br />
drmukeshpreeti@gmail.com, drmukeshpreeti@rediffmail.com
327<br />
Unusual Presentation of Duplex Collecting System: A Case Report<br />
<strong>December</strong> <strong>2012</strong><br />
Fig. 1: Intravenous urography showing the upper and middle calyx<br />
of the right kidney displaced in an arc-like fashion, suggestive of a<br />
cyst / mass lesion<br />
Fig. 3: Reterograde pyelogram showing upper calyx of the right<br />
kidney to be arc-like. This is besides a faintly opacified grossly<br />
dilated pelvi-calyceal system inferior to the arched upper calyx.<br />
Fig. 2: NCCT scan showing a thick walled, lobulated cystic lesion<br />
with thin peripheral calcification and few internal septa in right<br />
kidney<br />
DISCUSSION<br />
Duplicated collecting systems (also known as<br />
duplex collecting systems) can be defined as renal<br />
units containing two pyelo-caliceal systems that are<br />
associated with a single ureter or double ureters. The<br />
prevalence of partial duplication found is 0.6% [2] .<br />
When a single ureteral bud bifurcates before the<br />
ampulla bifurcates, a duplex kidney with a bifid renal<br />
pelvis or bifid ureter results [1] .<br />
Fig. 4: Intra-operative image showing the lower system having<br />
a very short ureter along with obstruction of the pelvi-ureteric<br />
junction
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 328<br />
Most patients are asymptomatic, with genitourinary<br />
tract abnormalities being detected incidentally on<br />
imaging studies performed for other reasons. Urinary<br />
tract infection and parenchymal scarring is increased<br />
in patients with a duplex collecting system; patients<br />
can present with pyrexia, pain and dysuria. Ureteropelvic<br />
junction obstruction is more common when a<br />
duplex kidney exists [2] . Giant hydronephrosis in a<br />
duplex kidney can manifest as an extremely large<br />
abdominal and retroperitoneal mass; in rare cases, it<br />
can cause hypertension.<br />
During ultrasonography, the duplex kidney appears<br />
as two central echo complexes with intervening renal<br />
parenchyma. Hydronephrosis at one pole is suggestive<br />
of a duplex kidney [3] . Although hydronephrosis can<br />
occur at either pole, it is more common in the upper<br />
one. The ultrasonographic appearance of a duplex<br />
kidney is specific but not sensitive. Differentiating<br />
an atrophied lower pole moiety of a duplex kidney<br />
(nubbin) from other renal masses is difficult [4] .<br />
With excretory urography, duplex kidney is<br />
usually longer than the non-duplex kidney. Calyces<br />
are asymmetric. Ectopic, upper pole ureteric insertion<br />
can produce a non-opacified segment. This mass effect<br />
results in the “drooping lily” sign with the depression<br />
of the lower pole pelvi-caliceal system. If the lower<br />
pole of the duplex kidney is functioning poorly or<br />
not at all, the lower pole collecting system may not<br />
opacify, and no discernible parenchyma will surround<br />
it (Nubbin sign). The appearance of the kidney may<br />
consequently resemble that of a non-duplex kidney<br />
with a lower polar mass or renal infarct.<br />
In computed tomography, the intervening renal<br />
parenchyma in a duplex kidney lacks a collecting<br />
system and major vessels. It is described as having a<br />
“faceless kidney” appearance, the collecting system in<br />
the nubbin or the mass effect of tissue at the pole [4] .<br />
Additional relevant findings include focal infarcts,<br />
cortical scars and atrophic scarred kidney. CT scan is<br />
superior to ultrasonography and excretory urography<br />
in diagnosing the lower pole nubbin [5] . In addition, the<br />
modality is helpful when function is poor or absent.<br />
CONCLUSION<br />
Careful history, examination and investigation may<br />
not rule out congenital abnormality of the kidneys like<br />
duplex collecting system. It may require a high index<br />
of suspicion as well as some invasive investigation<br />
to reach a final diagnosis. However, intra-operative<br />
findings can still surprise us with an entirely different<br />
diagnosis.<br />
REFERENCES<br />
1. Bruno D, Delvecchio FC, Preminger GM. Successful<br />
management of lower-pole moiety ureteropelvic<br />
junction obstruction in a partially duplicated collecting<br />
system using minimally invasive retrograde endoscopic<br />
techniques. J Endourol 2000; 14:727-730.<br />
2. Glassberg KI, Braren V, Duckett JW, et al. Suggested<br />
terminology for duplex systems, ectopic ureters and<br />
ureteroceles. J Urol 1984; 132:1153-1154.<br />
3. Horst M, Smith GH. Pelvi-ureteric junction obstruction<br />
in duplex kidneys. BJU Int 2008; 101:1580-1584<br />
4. M<strong>org</strong>an CL, Grossman H, Trought WS, et al. Ultrasonic<br />
diagnosis of obstructed renal duplication and<br />
ureterocele. South Med J 980; 73:1016-1019.<br />
5. Blair D, Rigsby C, Rosenfield AT. The nubbin sign on<br />
computed tomography and sonography. Urol Radiol<br />
1987; 9:149-151.
329<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Case Report<br />
Double Appendix: Report of a Case<br />
Naorem Gopendro Singh 1 , Hisham Kantoush 2 , Mirza Kahvic 1<br />
1<br />
Department of Pathology and 2 Surgery, Al-Jahra Hospital, Kuwait<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 329 - 331<br />
ABSTRACT<br />
A 30-year-old female presented to the surgery outpatient<br />
department with complaint of pain in right iliac fossa of<br />
one day duration. The pain was associated with nausea and<br />
vomiting. On examination, there was localized tenderness<br />
and rigidity in the right iliac fossa with positive rebound<br />
tenderness. Multiple pigmentation of skin in the abdomen,<br />
accessory nipple and scoliosis were also noted. Laboratory<br />
investigation revealed neutrophilic leukocytosis. Ultrasound<br />
abdomen showed an appendix measuring 4 cm in length and<br />
a fibroid uterus. Diagnostic laparoscopy revealed an inflamed<br />
appendix with a small blind structure in continuity with the<br />
cecum. Operative diagnosis of double appendix was made.<br />
Microscopic examination confirmed double appendix with<br />
features of appendicitis and periappendicitis in the bigger<br />
appendix. We report this case because of it rarity. The surgical<br />
resident should be aware of this rare congenital anomaly<br />
to avoid missing the other appendix in appendectomy<br />
procedures and avoid its medico-legal consequences.<br />
KEY WORDS: appendicitis, congenital anomaly, double appendix<br />
INTRODUCTION<br />
Despite the notorious range of variation in<br />
character and position natural to the human vermiform<br />
appendix, the extremes of variation (absence or<br />
duplication) affect this <strong>org</strong>an so very rarely that they<br />
are worth mentioning and recording. Duplication of<br />
vermiform appendix is rare with reported incidence of<br />
0.004% [1] and may be associated with other congenital<br />
duplications or other anomalies [2] . Doubled appendix<br />
is usually asymptomatic. When symptomatic, they are<br />
usually the result of obstruction and inflammation.<br />
Majority of the cases are diagnosed at surgery or on<br />
postmortem examination. Some of them can be picked<br />
up preoperatively on barium enema. The clinical<br />
presentation can vary according to the location of the<br />
appendices [3] . Here we report a case of double appendix<br />
because of its extreme rarity and discuss its etiology<br />
and different types of anatomic presentation.<br />
CASE REPORT<br />
A 30-year-old female patient presented with<br />
right lower abdominal pain of one day duration<br />
with associated nausea and vomiting. She gave no<br />
history of change in bowel habits, urinary symptoms,<br />
menstrual disturbance or similar previous attacks.<br />
On examination she was afebrile. There was localized<br />
tenderness and rigidity with positive rebound<br />
tenderness in right iliac fossa. Multiple pigmentation<br />
of skin especially in the abdomen, accessory nipple<br />
(polythelia) and scoliosis were noted. No mass could<br />
be felt. Her pelvic examination did not reveal any<br />
positive findings. Laboratory investigations revealed a<br />
total white blood count of 24.8 x 10 9 cells per liter with<br />
neutrophilia (72%). Other laboratory investigations<br />
including blood urea, creatinine and liver function<br />
test were unremarkable. Ultrasound abdomen showed<br />
an appendix measuring 4 cm in length and a fibroid<br />
uterus with minimal localized collection of fluid, in the<br />
right iliac fossa.<br />
With a presumptive diagnosis of acute appendicitis,<br />
diagnostic laparoscopy was performed on the day of<br />
admission with insufflation of CO 2 gas and insertion<br />
of three trocars, two 10 mm ports and one 5 mm<br />
port. There was minimal fluid in the pelvis with an<br />
inflamed appendix, which could be easily identified.<br />
No evidence of perforation or mass formation was<br />
noted. However, another blind structure was seen<br />
in continuity with the cecum and was incidentally<br />
discovered during dissection of mesoappendix (Fig. 1).<br />
An operative diagnosis of double appendix was made.<br />
The operation was terminated after retrieval of the<br />
appendices with endopouch and exploration of rest<br />
Adress correspondence to:<br />
Naorem Gopendro Singh, MD, Department of Pathology, Al-Jahra Hospital, P O Box 62276, Jahra 02153, Kuwait. Tel: + 965-97128990, Fax: +<br />
965-24582628, E-mail: gopen71@yahoo.co.in
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 330<br />
Fig. 1: Laparoscopic photograph showing the base of double<br />
appendix (arrows) and attached mesoappendix in-between<br />
Fig. 3: Photomicrograph showing the two separate mucosas (arrows)<br />
of the double appendix with two separate muscle coats and both<br />
muscular walls separated by meso-appendicular fibroadipose tissue<br />
( H & E stain X20)<br />
of small and large bowels, which ruled out any other<br />
associated congenital anomaly. Her postoperative<br />
course was uneventful and she was discharged on<br />
postoperative day five.<br />
Gross pathological examination of the specimen<br />
showed duplex vermiform appendix (Fig. 2). The<br />
bigger appendix measured 5.1 cm and the small one<br />
measured 1.5 in length. Both the appendices were<br />
attached to mesoappendix in close proximity. The<br />
specimen displayed focal congestion in the serosal<br />
aspect of the bigger appendix. Microscopic examination<br />
revealed two lumina of appendices having two separate<br />
muscle coats and lymphoid follicles in the mucosa<br />
(Fig. 3). The bigger and longer appendix revealed<br />
mixed acute and chronic inflammatory infiltrate in<br />
the mucosa as well as in the muscle coat showing<br />
features of acute appendicitis with periappendicitis.<br />
The small one showed regular morphology without<br />
any inflammation. Thus the operative diagnosis of<br />
Fig. 2: Gross photograph of the double appendix. Arrow pointing<br />
the small appendix<br />
double appendix was microscopically confirmed with<br />
one appendix showing features of acute appendicitis.<br />
DISCUSSION<br />
Duplication of the vermiform appendix, originally<br />
described in 1930, is rare with a reported incidence of<br />
0.004% [1] . The etiology of double appendix is unknown,<br />
but the most rational explanation was offered by Kelly<br />
and Hurdon who examined 54 human embryos to<br />
explain the origin and development of the appendix [4] .<br />
They described a minute budding “transient<br />
appendix” on the tip of the cecum in a 6-week-old<br />
embryo [4] . This small “transient appendix” usually<br />
atrophied or disappeared in the 8-week-old embryo [4] .<br />
Hence “transient appendix” is a definite potential<br />
for the embryological origin for the development of<br />
a supernumerary appendix and the most plausible<br />
explanation of the appendix duplex. Cave [5] classified<br />
three types of appendicular duplication as:<br />
Type A: Single cecum with one appendix exhibiting<br />
partial duplication<br />
Type B: Single cecum with two obviously separate<br />
appendices (complete duplicity)<br />
Type C: Duplication of cecum with each cecum bearing<br />
its proper appendix<br />
The simplest illustrations of the first type are those<br />
curious specimens of ‘double-barrelled’ appendix<br />
wherein the single <strong>org</strong>an presents two distinct<br />
lumina throughout either length or throughout only<br />
a part thereof [5] . The second type was first recorded by<br />
Paterson and Emrys-Robert (1906) wherein a full-term<br />
fetus, the subject of ectopia viscerum, spina bifida and<br />
other congenital anomalies showed a small ‘sacculated<br />
and curved appendix’ lying on each side of the ileocecal<br />
junction [5] . Type C was first reported by Greig<br />
(1934) in which the whole bowel duplicates distal to<br />
the site of Meckel’s diverticulum; two separate ceca<br />
were present, each bearing its proper vermiform<br />
appendix [5] .
331<br />
Double Appendix: Report of a Case<br />
<strong>December</strong> <strong>2012</strong><br />
Wallbridge [6] modified Cave’s [5] original<br />
classification of duplicated vermiform appendix into<br />
three types as follows:<br />
A: Partial duplication of the appendix on a single<br />
cecum<br />
B: Single cecum with two completely separate<br />
appendices<br />
B1: “Bird-like appendix” called so because of its<br />
resemblance to the normal arrangement in birds,<br />
where there are two appendices symmetrically<br />
placed on either side of the ileo-cecal valve<br />
B2: One appendix arises from the usual site on the<br />
cecum, with another rudimentary appendix arising<br />
from the cecum along the line of the tenia at varying<br />
distance from the first<br />
C: Two ceca, each bearing its own appendix<br />
Though majority of the cases are diagnosed at<br />
surgery or on postmortem examination, some of the<br />
cases can be picked up preoperatively on barium enema.<br />
Peddu et al reported an incidental finding of Type B1<br />
double appendix by barium enema in a 73-year-old<br />
man who was investigated for the rectal bleeding [7] .<br />
In such cases the patient may be informed about the<br />
abnormality; however the role of conventional /<br />
laparoscopic appendectomy for the removal of the<br />
asymptomatic double appendix has not been welldefined.<br />
Although preoperative diagnosis could be<br />
made with the aid of radiological studies such as a<br />
barium enema, in cases associated with duplication<br />
of colon, the majority of cases have been diagnosed at<br />
surgery or upon pathological examination [8] .<br />
The present case represents type B2 of appendicular<br />
duplication, thought to represent the persistence of the<br />
“transient appendix”. Duplication of the vermiform<br />
appendix must be distinguished from a solitary<br />
diverticulum of the cecum [5,6] . True double appendices<br />
have lymphoid tissue and muscular walls, but a cecal<br />
diverticulum does not contain lymphoid tissue and is<br />
merely an out-pouching of mucosa and submucosa<br />
through a muscular defect [5,6] . In the current case, there<br />
were two separate appendices which were proved<br />
microscopically.<br />
Some cases of double appendix are associated with<br />
intestinal, genitor-urinary or vertebral malformation [8,9] .<br />
We should be aware of these possible malformations<br />
and the patient should be explored for the same at<br />
time of operation. The risk of associated malformation<br />
seems to be greater in young children, especially those<br />
with type B1 and C malformations [9] . In our present<br />
case, double appendix was incidentally found while<br />
performing laparoscopic appendectomy and we did<br />
not find any other gastrointestinal congenital anomalies<br />
like intestinal duplications that were commonly<br />
associated with double appendix. But she had other<br />
anomalies like scoliosis and skin lesions which were<br />
recorded for further notification with double appendix<br />
in the future. Kothari et al [3] reported duplex appendix<br />
in association with imperforate anus [3] .<br />
In patients with double appendix, when only a<br />
single appendix is found to be inflamed on exploration<br />
or laparoscopy, both the appendices should be<br />
removed so as to avoid diagnostic confusion that may<br />
arise on removal of a single appendix [10] . To the best of<br />
our knowledge, surgical management for the double<br />
appendix is same as the conventional / laproscopic<br />
appendectomy. No literature describes any unique<br />
technique for double appendix differently. However,<br />
one should explore for the possible associated<br />
malformation. In the current case, only the bigger and<br />
longer appendix was inflamed, however we removed<br />
both the appendices including the smaller noninflamed<br />
one.<br />
CONCLUSION<br />
Double appendix is extremely rare. Surgical<br />
residents should be aware of the possibility of<br />
duplication of appendix to avoid missing double<br />
appendix and its medico-legal consequences.<br />
REFERENCES<br />
1. Chew DK, Borromeo JR, Gabriel YA, Holgersen LO.<br />
Duplication of the vermiform appendix. J Pediatr Surg<br />
2000; 35:617-618.<br />
2. McNeill SA, Rance CH, Stewart RJ. Fecolith impaction in<br />
a duplex vermiform appendix: An unusual presentation<br />
of colonic duplication. J Pediatr Surg 1996; 31:1435-<br />
1437.<br />
3. Kothari AA, Yagnik KR, Hathila VP. Duplication of<br />
vermiform appendix. J Postgrad Med 2004; 50:285-286.<br />
4. Kelly HA, Hurdon E. Anatomy: The vermiform appendix<br />
and its diseases. Philadelphia: WB Saunders 1905:55-74.<br />
5. Cave AJ. Appendix vermiformis duplex. J Anat 1936;<br />
70:283-292.<br />
6. Wallbridge PH. Double appendix. Br J Surg 1962; 50:346-<br />
347.<br />
7. Peddu P, Sidhu PS. Appearance of a Type B duplex<br />
appendix on barium enema. Br J Radiol 2004; 77:248-<br />
249.<br />
8. Kabay S, Yucel M, Yaylak F, et al. Combined duplication<br />
of the colon and vermiform appendix in an adult patient.<br />
World J Gastroenterol 2008; 14:641-643.<br />
9. Gilchrist BF, Scriven R, Nguyen M, Nguyen V, Klotz<br />
D, Ramenofsky ML. Duplication of the vermiform<br />
appendix in gastroschisis. J Am Coll Surg1999; 189:426.<br />
10. Lin BC, Chen RJ, Fang JF, Lo TH, Kuo TT. Duplication of<br />
the vermiform appendix. Eur J Surg 1996; 162:589-591.
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 332<br />
Case Report<br />
Oncocytic and Clear Cell Areas in a Solid Pseudopapillary<br />
Tumor of the Pancreas: A Case Report<br />
Anuradha C K Rao, Manna Valiathan, Padmapriya Jaiprakash<br />
Department of Pathology, Kasturba Medical College, Manipal, Karnataka, India<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 332 - 334<br />
ABSTRACT<br />
Solid pseudopapillary tumor (SPT) of pancreas is a rare,<br />
distinct, low-grade malignant neoplasm. Variable areas<br />
like clear cell foci can exist in this tumor, which can easily<br />
mislead the pathologist. Diagnosis of the same is important<br />
to distinguish from other clear cell lesions in the pancreas.<br />
Oncocytoid differentiation is rarer still and can raise doubts<br />
about the diagnosis, especially on trucut biopsies. Herein,<br />
we discuss a case of SPT of the pancreas exhibiting variable<br />
cellular morphology, of which very few cases have been<br />
reported in world literature.<br />
KEY WORDS: oncocytic, pancreas, solid pseudopapillary tumor<br />
INTRODUCTION<br />
Solid pseudopapillary tumor (SPT) is an uncommon,<br />
low-grade malignant neoplasm accounting for 1% of<br />
all exocrine pancreatic tumors. Exact histogenesis of<br />
this tumor remains uncertain [1] . As the various names<br />
for the tumor suggest, it is a solid and cystic pancreatic<br />
neoplasm with characteristic pseudopapillae and sheets<br />
of intermediate and small sized polygonal cells with<br />
minimal morphological deviation. Herein, we report a<br />
case of oncocytic variant of this tumor on account of its<br />
rarity and the few cases reported till date.<br />
CASE HISTORY<br />
A 29-year-old lady presented to the surgical outpatient<br />
department, with a history of swelling in the<br />
upper abdomen of one month duration, which was not<br />
associated with pain, vomiting or abdominal distention.<br />
Patient had a past history of exploratory laparotomy<br />
10 years ago, for palliative gastrojejunostomy and<br />
enterostomy in view of biopsy reported as suspected<br />
neuroendocrine tumor of pancreas, which, however,<br />
was not removed. On examination, a firm to hard mass<br />
of 10 x 7 cm, moving with respiration was palpated<br />
in the left hypochondrial region. All routine laboratory<br />
investigations were within normal range except an ESR<br />
of 40. Ultrasound abdomen was normal and upper GI<br />
endoscopy revealed extraluminal compression on<br />
stomach. A CT-scan revealed a cystic neoplasm arising<br />
from the head of pancreas and a clinical diagnosis<br />
of cystic neoplasm of mucinous origin of pancreas<br />
was made, in view of which the patient underwent<br />
Whipple’s pancreatectomy. Post-operative period<br />
was uneventful and the patient was discharged on<br />
the tenth post-operative day. The patient had no fresh<br />
complaints on follow-up after two months. However,<br />
she presented with amenorrhea after four months,<br />
post-operatively. On ultrasonography, polycystic<br />
ovaries were detected and she was advised for weight<br />
reduction. The patient was lost to follow-up after that.<br />
Pathological findings<br />
Gross: The tumor was well-demarcated, nodular and<br />
unencapsulated, weighing 911 grams and measuring<br />
16 x 11 x 10 cm. Cut section showed a multiloculated<br />
cystic tumor with variegated appearance comprising<br />
grey-white, friable irregular solid areas, yellow areas<br />
and hemorrhagic foci and peripheral rim of pancreatic<br />
tissue.<br />
Microscopy: Sections showed a well demarcated<br />
but unencapsulated tumor composed of sheets and<br />
trabeculae of loosely cohesive polygonal cells with<br />
central ovoid nuclei, few with eccentrically placed<br />
nuclei and finely stippled or granular chromatin.<br />
Focal clear cell areas (Fig. 1) were identified with<br />
abundant cytoplasmic, PAS and mucicarmine negative<br />
vacuoles and rare mitotic figures, separated by bands<br />
of hyalinised fibrous tissue with myxoid changes.<br />
Areas showing solid nests of polygonal cells with<br />
abundant eosinophilic granular cytoplasm and central<br />
vesicular nucleus with prominent nucleolus were<br />
Address correspondence to:<br />
Dr Padma Priya J, Assistant Professor, Department of Pathology, Basic Sciences Block, Kasturba Medical College, Manipal 576104, Karnataka,<br />
India. E-mail: padmapriya.j@gmail.com
333<br />
Oncocytic and Clear Cell Areas in a Solid Pseudopapillary Tumor of the Pancreas...<br />
<strong>December</strong> <strong>2012</strong><br />
Fig. 1: Clear cell areas (H&E, x100)<br />
Fig. 2: Sheets and solid nests of polygonal cells with abundant<br />
eosinophilic granular cytoplasm and central vesicular nucleus with<br />
prominent nucleous (H & E, x 100, inset: H & E, x 400)<br />
cyclin D1, all of which were positive, thus confirming<br />
our diagnosis (Fig. 4).<br />
Fig. 3: Classical areas composed of pseudopapillae lined by loosely<br />
cohesive polygonal cells with central ovoid nuclei, few with<br />
eccentrically placed nuclei and finely stippled or granular chromatin<br />
(H & E, x 100)<br />
seen (Fig. 2). Extensive cystic degeneration with<br />
classical pseudopapillae were seen, which helped<br />
clinch the diagnosis (Fig. 3). Immunohistochemistry<br />
(IHC) performed revealed tumor cells to be positive<br />
for vimentin, and negative for endocrine markers<br />
(synaptophysin, chromogranin) and the epithelial<br />
marker, cytokeratin. Further immunohistochemical<br />
markers were later done, including CD117, CD10 and<br />
DISCUSSION<br />
The first cases of SPT of the pancreas were<br />
described by Frantz [2] . Various synonyms include solid<br />
and papillary neoplasm, solid and papillary epithelial<br />
neoplasm, papillary-cystic carcinoma, solid and cystic<br />
acinar cell tumor of the pancreas relating to gross<br />
features and most obvious histological pattern. WHO,<br />
in 1996, proposed the name ‘solid-pseudopapillary<br />
neoplasm to encompass the two most conspicuous<br />
histological features [3] . They account for < 1% of all<br />
pancreatic neoplasms [4] . It is most common in women<br />
(82%) about 30 years of age but, occasionally, the tumor<br />
occurs in older women, men or children [5] .<br />
Although the pathogenesis is so far unknown,<br />
studies have thrown new insights regarding the same,<br />
the most acceptable being of pancreatic duct origin<br />
due to the related strong expression of galectin-3 by<br />
the neoplastic cells [6] .<br />
SPT on fine needle aspiration (FNA) and trucut<br />
biopsy samples can often mimic neuroendocrine<br />
Fig. 4a: Immunohistochemisty showing<br />
strong nuclear Cyclin D1 positivity<br />
Fig. 4b: Immunohistochemisty showing<br />
membrane positivity with CD10<br />
Fig. 4c: Immunohistochemisty showing<br />
CD117: cytoplasmic granules
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 334<br />
tumors [7] , especially if the classical areas have not been<br />
sampled, as may have been the case in this patient,<br />
who was earlier misdiagnosed.<br />
Microscopically, classical areas are characterized by<br />
pseudopapillae and solid sheets of medium to small<br />
sized polygonal cells with vesicular nucleus and rare<br />
mitotic figures. This case was distinguished by the<br />
presence of focal areas with large polygonal cells with<br />
abundant eosinophilic granular cytoplasm and few<br />
with prominent nucleoli, along with areas showing<br />
multiple cytoplasmic vacuoles of varying sizes in many<br />
neoplastic cells. The vacuoles did not contain glycogen<br />
or mucin. Clear cells with cytoplasmic vacuoles are<br />
seen as a focal change in the classical form of SPT. They<br />
are formed by dilatation of the smooth endoplasmic<br />
reticulum and mitochondria [1] . Another source of clear<br />
cells is foamy macrophages. The differential diagnosis<br />
included clear cell endocrine pancreatic neoplasms<br />
with small lipid droplets and chromogranin positive<br />
neurosecretory granules [7] . Clear cell variant of<br />
ductal carcinoma of pancreas is distinguished by the<br />
presence of malignant cells with stromal desmoplasia,<br />
cytologic atypia, increased mitotic activity and areas<br />
of mucin-producing ductal carcinoma. Although<br />
serous cystadenoma is composed of clear cells, they<br />
contain glycogen and line small or large cystic spaces.<br />
Metastatic renal cell carcinoma should be considered<br />
in older individuals with cells showing lipid.<br />
Oncocytic areas in SPT have been recently described.<br />
Oncocytic changes may mean a favorable prognosis<br />
in neoplasms. It is seen in pancreatic neoplasms,<br />
and has been reported in acinar cell carcinoma,<br />
pancreatoblastoma, and intraductal oncocytic papillary<br />
neoplasm of the pancreas [8] . Oncocytic acinar cell<br />
carcinomas are usually solid, do not have a papillary<br />
and / or glandular component and are clinically<br />
aggressive [8] . Intraductal oncocytic papillary neoplasm<br />
of the pancreas is composed of cystically dilated ducts<br />
with long, thick papillae with fibrovascular cores,<br />
lined by cells with eosinophilic granular cytoplasm,<br />
and single eccentric nuclei [8] . Other unusual cell types<br />
described in SPT include pleomorphic spindle cells<br />
and cells with melanocytic differentiation [1] .<br />
IHC shows strong vimentin and CD10 positivity<br />
of SPT tumor cells, negativity for chromogranin, and<br />
weak or focal positivity for epithelial markers. Of late,<br />
SPT has been found to be positive for CD117 and cyclin<br />
D1 [9] . The clinical features, gross characteristics and<br />
immunoprofile of all the variants are similar to those<br />
of the classical SPT.<br />
CONCLUSION<br />
This is an interesting case of SPT of the pancreas<br />
with oncocytoid and clear cell areas posing<br />
diagnostic difficulty, especially on trucut biopsies.<br />
Clinicopathological correlation, microscopic pattern,<br />
extensive search for classical, non-oncocytic areas of<br />
the tumor with immunohistochemical stains help to<br />
arrive at an accurate diagnosis in this scenario.<br />
REFERENCES<br />
1. Albores-Saavendra J, Slimpson KW, Bilello SJ. The clear<br />
cell variant of solid pseudopapillary tumor of pancreas:<br />
A previously unrecognized pancreatic neoplasm. Am J<br />
Surg Pathol 2006; 30:1237-1242.<br />
2. Frantz VK. Tumors of the Pancreas. In: Anonymous<br />
Atlas of Tumor Pathology, Section 7, Fascicles 27 and<br />
28. Washington DC, USA: Armed Forces Institute of<br />
Pathology, 1959; 32-33.<br />
3. Kloppel G. Luttges J, Kllimstra D, Hruban R, Kern S,<br />
Adler G. Tumours of the exocrine pancreas. In: Hamilton<br />
SR, Aaltonen LA, editors. World Health Organization<br />
Classification of Tumours. Pathology and Genetics of<br />
Tumours of the Digestive System. IARC Press: Lyon<br />
2000.<br />
4. Martin RC, Klimstra DS, Brennan MF, et al. Solid<br />
pseudopapillary tumor of the pancreas: a surgical<br />
enigma? Ann Surg Oncol 2002; 9:35-40.<br />
5. Santini D, Poli F, Lega S. Solid-Papillary Tumors of the<br />
Pancreas: Histopathology. J Pancreas (Online) 2006;<br />
7:131-136.<br />
6. Geers C, Pierre M, Jean-Fancois G, et al. Solid and<br />
pseudopapillary tumor of the pancreas - review and<br />
new insights into pathogenesis. Am J Surg Pathol 2006;<br />
30:1243-1249.<br />
7. Hoang MP, Hruban RH, Albores-Saavendra J. Clear<br />
cell endocrine pancreatic tumor mimicking renal cell<br />
carcqinoma. Am J Surg Pathol 2001; 25:602-609.<br />
8. Liszka L, Pajak J, Zielinska-Pajak E, et al. Intraductal<br />
oncocytic papillary neoplasms of the pancreas and bile<br />
ducts: a description of five new cases and review based<br />
on a systematic survey of the literature. J Hepatobiliary<br />
Pancreat Sci 2010; 17:246-261.<br />
9. Adsay NV. Cystic lesions of the pancreas. Modern<br />
Pathology 2007; 20: S71–S93.
335<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Case Report<br />
Celiac Disease as Uncommon Cause of Death in<br />
Type 1 Diabetes Mellitus: A Case Study<br />
Yasser Mohamed Abd Elraouf Ibrahim<br />
Department of Internal Medicine, Al Sabah Hospital, Ministry of Health, Kuwait<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 335 - 337<br />
ABSTRACT<br />
Celiac disease (CD) is one of the most common immune<br />
mediated diseases. This disease is triggered by ingestion of<br />
wheat gluten and related other cereal proteins, particularly<br />
those in rye and barley. The prevalence of CD in type 1<br />
diabetes in children is 1:6 to 1:103 and in adults 1:16 to<br />
1:76. In-spite of that, there is no current clinical evidence<br />
supporting routine screening of adult type 1 diabetic patients<br />
for CD. Most patients who have diabetes and CD have nonclassic<br />
forms of CD, with various presentations such as short<br />
stature, sideropenic anemia, or hypertransaminasemia; in<br />
many cases, patients are totally symptom free. CD elevates<br />
the mortality risks of a wide array of diseases in CD patients.<br />
This case had an atypical presentation of CD, and died<br />
unexpectedly because of the disease. We report this case to<br />
emphasize on the value of high index of suspicion of CD in<br />
type 1 diabetes mellitus.<br />
KEY WORDS: diet, gluten free, immune-mediated diseases, tissue, transglutaminase<br />
INTRODUCTION<br />
Celiac disease (CD) is one of the most common<br />
immune-mediated diseases [1] . Atypical asymptomatic<br />
form and absent gastrointestinal manifestations, are<br />
common, and a case may be discovered on duodenal<br />
biopsy for any other reason or immunology screening [2] .<br />
Studies in the United States and Europe show the<br />
prevalence of the disease approaching 1% [3,4] .<br />
Based on small bowel biopsy diagnosis, the<br />
prevalence of CD in type 1 diabetes in children is 1:6<br />
to 1:103 and in adults 1:16 to 1:76 [5] . CD is most often<br />
present before the onset of diabetes. Most patients who<br />
have both diabetes and CD have non-classic forms of<br />
CD, with various presentations such as short stature,<br />
sideropenic anemia, or hypertransaminasemia; in many<br />
cases, patients are totally symptom free [6] . In-spite of<br />
that, there is no current clinical evidence supporting<br />
routine screening of an adult type 1 diabetic patient for<br />
CD [7] .<br />
CASE HISTORY<br />
A twenty-two-year old Kuwaiti single female<br />
presented to us in the outpatient department with<br />
abdominal pain, bilateral lower limb edema and skin<br />
pigmentation of two months duration. She was known<br />
case of type 1 diabetes mellitus for 13 years on intensive<br />
insulin regimen, but non-compliant to her medication<br />
and with poor glycemic control. She had irregular<br />
menstruation and good scholastic performance. Her<br />
body weight was 42 kg, height was 158 cm and body<br />
mass index was 16.8 kg/m 2 . On clinical examination,<br />
she was conscious, alert and oriented. Her BP was<br />
110/70 mmHg, pulse rate was 75 bpm, temperature<br />
was 36.8 ºC and respiratory rate was 22/min. General<br />
examination revealed bilateral lower limb pitting<br />
edema with brownish, patchy and scaly pigmentation<br />
on the extremities but without pruritus. There was<br />
neither lymphadenopthy nor thyroid enlargement.<br />
Examination of the chest, heart, abdomen and CNS<br />
was unremarkable. Routine urine examination was<br />
unremarkable. Liver function tests showed an elevation<br />
of ALT ( 85 IU/l, normal up to 45 IU/l), AST ( 58 IU/<br />
l, normal up to 40 IU/l) and ALP (181 IU/l, normal<br />
up to 132 IU/l), with decreased plasma albumin to (18<br />
g/l, normal 35 - 50 g/l). Total bilirubin was 11 μmol/<br />
l (normal upto 17 μmol/l) and direct bilirubin was 3<br />
μmol/l (normal upto 5 μmol/l). INR was elevated to<br />
2.3. 24-hour urinary protein was normal (160 mg/day).<br />
Complete blood picture showed a hemoglobin level of<br />
123 g/l (normal female range 135 - 150 g/l), WBC count<br />
was 7400/mm 3 (normal range 4000 – 11,000/mm 3 ) and<br />
platelets were 230,000/mm 3 (normal range 150,000 –<br />
450,000/mm 3 ). Abdomen and pelvic ultrasonography<br />
was unremarkable, Investigations for hepatitis A, B<br />
Address correspondence to:<br />
Dr Yasser Mohamed Abd Elraouf Ibrahim, MD, Department of Internal Medicine, Tanta Faculty of Medicine, Tanta, Egypt. Tel: 0020409115886,<br />
Mob: 0020102717656, E-Mail: masyasser@yahoo.com
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 336<br />
and C, antinuclear antibodies and anti-double strand<br />
antibodies were negative. α -1 antitrypsin and serum<br />
ceruloplasmin were within normal limits. Serum<br />
protein electrophoresis was normal. Further enquiry<br />
into patient’s history, revealed that the patient had<br />
frequent attacks of diarrhea over the previous three<br />
months.<br />
The common association of CD with type 1 diabetes<br />
mellitus attracted our attention to the possibility of<br />
this disorder as a cause of the presenting picture of<br />
this patient. Anti-gliadin antibodies were evaluated<br />
together with anti-endomysial antibodies and tissue<br />
transglutaminase antibodies (tTGA). Anti-gliadin<br />
antibodies were elevated (IgA 62 u/l, normal < 5 u/l)<br />
IgG was 69 u/l (normal < 7 u/l), anti-endomysial<br />
antibodies were positive and tTGA were elevated (IgA<br />
was > 120 u/l, normal < 7 u/l). These findings were<br />
highly suggestive of CD. We proceeded for upper<br />
gastrointestinal endoscopy with duodenal biopsy for<br />
histopathology which showed nearly complete villous<br />
atrophy with intraepithelial lymphocytic infiltration.<br />
The patient was diagnosed to have CD with elevated<br />
liver enzymes as a result. Further investigations showed<br />
decreased level of vitamin D (41.45 nmol/l, normal<br />
50 - 80 nmol/l) and serum iron (3 μmol/l, normal 6<br />
– 7 μmol/l). A dietitian and gastroenterologist were<br />
consulted and gluten free diet (GFD) was started for the<br />
patient with multivitamin supplementation including<br />
vitamin D, K, folic acid, and iron.<br />
Four weeks later, although liver enzymes became<br />
normal, we were informed by the mother that her<br />
daughter was poorly compliant for GFD.<br />
Five weeks after diagnosis, the patient was admitted<br />
to the hospital because of urinary tract infection,<br />
diarrhea and increasing lower limb edema. Clinical<br />
examination was unremarkable except for bilateral<br />
lower limb pitting edema and brownish patchy scaly<br />
skin pigmentation on the extremities. Plasma albumin<br />
was as low as 15g/dl. Random blood sugar was 12.7<br />
mmol/l with no acetone in urine and blood pH was<br />
7.39. CBC showed Hb of 12.1g/dl WBCs 15,000/mm 3<br />
(85% were polymorhs) and platelets were 235,000/mm 3 .<br />
Urine culture and sensitivity were sent. Empirical<br />
antibiotic ciprofloxacin 500 mg BD was started and this<br />
choice was confirmed by the result of urine culture and<br />
sensitivity test. IV albumin 20 g twice daily was started<br />
with intensive insulin regimen.<br />
The patient became distressed after six days of<br />
admission with a temperature of 38.1 ºC and hypoxia.<br />
X-Ray chest showed bilateral bronchopneumonia.<br />
Patient was shifted to the ICU and ventilated as her<br />
respiratory rate had reached 35/min. Antibiotics<br />
were modified to Tazocin 4.5 g/6 hourly and IV<br />
clarithromycin 500 mg BD. Tracheal aspirate was<br />
sent for culture and sensitivity test along with blood<br />
culture and sensitivity. The patient did not respond<br />
well to antibiotics, and deteriorated within two days<br />
and died. Result of tracheal aspirate and blood culture<br />
showed Klebsiella pneumoniae.<br />
DISCUSSION<br />
CD is triggered by ingestion of wheat gluten<br />
and related other cereal proteins, particularly<br />
those in rye and barley. These molecules induce an<br />
inflammatory response in the small intestine, resulting<br />
in villous atrophy, crypt hyperplasia and lymphocytic<br />
infiltration [1] . CD is sometimes divided into clinical<br />
subtypes. The terms classic apply to cases which<br />
meet the classic features of CD, which include chronic<br />
diarrhea, abdominal distension and pain, weakness<br />
and sometimes malabsorption. In contrast in atypical<br />
asymptomatic form, no gastrointestinal manifestations<br />
are present, but features such as anemia, osteoporosis,<br />
short stature, infertility and neurological problems are<br />
common, and a case may be discovered on duodenal<br />
biopsy for any other reason or immunology screening.<br />
Nevertheless, the disease remains widely underrecognized<br />
[2] .<br />
Studies in the United States and Europe show the<br />
prevalence of the disease approaching 1% [3,4] . Based<br />
on small bowel biopsy diagnosis, the prevalence of<br />
CD in type 1 diabetes in children is 1:6 to 1:103 and in<br />
adults is 1:16 to 1:76 [5] . CD is most often present before<br />
the onset of diabetes [6] . The association between the<br />
development of both diseases may be explained by<br />
the inheritance of common major histocompatibility<br />
complex immunogenotypes that influence the<br />
presentation of auto antigens to CD4 + T-Cells [7] .<br />
In adults with CD, hypertransaminasemia is<br />
frequent and normalizes with gluten free diet. If not,<br />
liver biopsy should be done to rule out autoimmune<br />
hepatitis and primary billiary cirrhosis [8] . Isolated<br />
elevation of ALP (alkaline phosphatase) is less<br />
common and may reflect presence of secondary<br />
hyperparathyroidism (bone-specific form).<br />
Hypoalbuminemia and prolonged prothrombin time<br />
may indicate severe form of malabsorption [9] .<br />
The American Gastroenterological Association<br />
(AGA) Institute recommended that testing for CD<br />
should be considered in symptomatic patients who are<br />
at particular risk. These include those with unexplained<br />
iron deficiency anemia, premature osteoporosis, Down<br />
syndrome, unexplained hypertransaminasemia,<br />
autoimmune hepatitis and primary billiary cirrhosis.<br />
The diagnostic tests for CD widely used now<br />
include IgA antiendomysial antibodies and IgA tTGA<br />
(sensitivity - 90% and specificity - 95%), but distal<br />
duodenal biopsy remains the gold standard diagnostic<br />
method (showing total or partial villous atrophy,<br />
crypt lengthening and increased lymphocytes in<br />
lamina propria and intraepithelial region). Biopsy is<br />
indicated even if serology is negative and CD is still
337<br />
Celiac Disease as Uncommon Cause of Death in Type 1 Diabetes Mellitus: A Case Study<br />
<strong>December</strong> <strong>2012</strong><br />
highly suspected. Compliance with GFD is likely to<br />
be protective against development of non-Hodgkin<br />
lymphoma and dermatitis herpitiformis in CD. It<br />
can improve nutritional status, body mass index,<br />
increase insulin requirement in type 1 diabetes, but no<br />
convincing change in diabetes control [10] .<br />
CD patients have overall, two-fold increased<br />
mortality risk compared with the general population.<br />
CD elevates the mortality risks of a wide array of<br />
diseases in CD patients, including non-Hodgkin<br />
lymphoma (SMR 11.4), small intestinal cancer (SMR<br />
m 17.3), autoimmune diseases as rheumatoid arthritis<br />
(SMR 7.3) and diffuse disease of connective tissue (SMR<br />
17.0), allergic disorders such as bronchial asthma (SMR<br />
2.8), inflammatory bowel disease including ulcerative<br />
colitis and Crohn’s disease (SMR 70.9), diabetes<br />
mellitus (SMR 3.0), disorders of immune-deficiency<br />
(SMR 20.9), tuberculosis (SMR 5.9), pneumonia (SMR<br />
2.9) and nephritis (SMR 5.4) [11] .<br />
CONCLUSION<br />
It is important to have a high index of suspicion<br />
for CD in adult patients with type 1 diabetes mellitus,<br />
in view of the common association between these two<br />
diseases and the elevated mortality risks for a wide<br />
array of diseases in CD patients.<br />
REFERENCES<br />
1. Green PH, Jabri B. Coeliac disease. Lancet 2003; 362:383-<br />
391.<br />
2. Armin A, Peter HR. Narrative review: Celiac Disease:<br />
Understanding a complex autoimmune disorder. Ann<br />
Intern Med 2005; 142: 289-298.<br />
3. Fasano A, Berti I, Gerarduzzi T, et al. Prevalence of celiac<br />
disease in at-risk and not-at-risk groups in the United<br />
States: a large multicenter study. Arch Intern Med 2003;<br />
163:286-292<br />
4. Tommasini A, Not T, Kiren V, et al. Mass screening<br />
for coeliac disease using antihuman transglutaminase<br />
antibody assay. Arch Dis Child 2004; 89:512-515<br />
5. Holmes GK. Coeliac disease and type 1 diabetes mellitus<br />
- the case for screening. Diabet Med 2001; 18:169-177.<br />
6. Noel P, Françoise B, Charlotte B, et al. The temporal<br />
relationship between the onset of type 1 diabetes and<br />
celiac disease: A study based on immunoglobulin A<br />
antitransglutaminase screening. Pediatrics 2004; 113:<br />
e418-e422.<br />
7. Frank W, Aonghus O, Fidelma D. Gluten and glucose<br />
management in type 1 diabetes. B J Diab Vasc Dis 2008;<br />
8:67-71.<br />
8. Maria T, Mirella F, Maurizio Q, Nicoletta I, Paolo B,<br />
Dario C. Prevalence of hypertransaminasemia in adult<br />
celiac patients and effect of gluten-free diet. Hepatology<br />
1995; 22:833-836.<br />
9. Alberto Rub, Joseph A. The liver in celiac disease.<br />
Hepatology 2007; 46:1650-1658.<br />
10. Rostom A, Murray JA, Kagnoff MF. American<br />
Gastroenterological Association (AGA) Institute<br />
technical review on the diagnosis and management of<br />
celiac disease. Gastroenterology 2006; 131:1981-2002.<br />
11. Peters U, Askling J, Gridley G, Ekbom A, Linet M.<br />
Causes of death in patients with celiac disease in a<br />
population-based Swedish cohort. Arch Intern Med<br />
2003; 163:1566-1572.
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 338<br />
Case Report<br />
Squamous Cell Carcinoma of the Penis:<br />
Magnetic Resonance Imaging Findings<br />
Ibrahim Hamed, Hasan Almutairi, Muneera Al-Adwani<br />
Department of Clinical Radiology, Al-Jahra Hospital, Kuwait<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 338 - 340<br />
ABSTRACT<br />
Most primary penile malignancies are squamous cell<br />
carcinoma (SCC) and occur most often during the 6 th and 7 th<br />
decades of life. Uncircumcised men are more often affected,<br />
probably because of the chronic irritative effect of smegma. An<br />
association between human papilloma viruses 16 and 18 and<br />
SCC of the penis has also been reported. We describe a case of<br />
a 43-year-old uncircumcised Asian male patient who presented<br />
with an ulcerating penile mass. MRI images were helpful in<br />
making a preoperative diagnosis of penile cancer. MR imaging<br />
can play an important role in the evaluation of a penile mass.<br />
KEY WORDS: penile mass, penile SCC, MRI of penis<br />
INTRODUCTION<br />
Squamous cell carcinoma (SCC) of the penis usually<br />
begins on the glans as a focal epithelial thickening<br />
with or without ulceration [1] . The lesions are generally<br />
not painful, and affected patients often delay seeking<br />
medical attention [2] . After penectomy with 2 cm<br />
margins, patients with tumors that have not invaded<br />
the corpora cavernosa have a greater than 95% 3-year<br />
survival rate [3] . Survival decreases markedly with<br />
cavernosal invasion or with spread to regional lymph<br />
nodes [4] . Although not often performed in the acute<br />
setting, MR imaging can play an important role in the<br />
evaluation of penile mass [5] . Ultrasound (US) can help<br />
detect solid penile mass in the majority of patients [6] .<br />
CASE HISTORY<br />
An Indian uncircumcised male patient aged 43<br />
years presented with a painless penile mass of sixmonth<br />
duration. The clinical examination revealed<br />
a solid mass lesion underneath the foreskin and the<br />
patient was referred to our department for an MRI. MRI<br />
revealed a solid isointense to low signal intensity mass<br />
lesion both on T1-wieghted (Fig. 1) and T2-wieghted<br />
(Fig. 2) images, mainly located at the left lateral aspect<br />
of the glans of the penis extending to its dorsal aspect<br />
with a definite invasion of the hypointense adjacent<br />
tunica albuginea (Fig. 3). However, the urethra was not<br />
compromised (Fig. 3). After Gd-chelate agent injection,<br />
homogenous enhancement pattern was elicited with<br />
multiple signal void foci that were confirmed to be<br />
hypervascular on color Doppler study (Fig. 3 and<br />
Fig. 4). The clinical examination revealed a solid mass<br />
lesion underneath the foreskin (Fig. 5) with concealed<br />
external meatus and with discharge from cutaneous<br />
fistula from the foreskin.<br />
Diagnosis and Treatment: Circumcision with<br />
excisional biopsy was done and histopathological<br />
examination confirmed penile SCC. So the patient<br />
underwent partial penectomy with 2 cm safety margin.<br />
The patient was planned for bilateral ilio-inguinal<br />
lymph node dissection.<br />
DISCUSSION<br />
Carcinoma of the urethra and penis is extremely<br />
rare, accounting for less than 1% of genitourinary<br />
cancers in males [7] . Histological examination reveals<br />
SCC in more than 95% of cases of penile carcinoma [8] .<br />
At MR imaging, SCC is usually hypointense relative<br />
to the corpora on both T1- (Fig. 1) and T2- (Fig. 2)<br />
weighted images. At contrast-enhanced imaging, these<br />
lesions do increase in signal intensity but less so than<br />
the normal corporal bodies. Although neither MR nor<br />
other imaging is generally needed for diagnosis (the<br />
tumor is usually visible at physical examination), MR<br />
imaging may be performed for staging purposes. In the<br />
commonly used Jackson staging system, stage I lesions<br />
are confined to the glans or prepuce, stage II lesions<br />
Address correspondence to:<br />
Ibrahim Mohamed Ali Hamed, MD, Department of Clinical Radiology, Al-Jahra Hospital (MoH),Jahra Central, PO Box 1807, Jahra 01020, Kuwait.<br />
Fax: 24577198, 97341802 (M), E-mail: imah_77@hotmail.com, mun.adw@windowslive.com
339<br />
Squamous Cell Carcinoma of the Penis: Magnetic Resonance Imaging Findings<br />
<strong>December</strong> <strong>2012</strong><br />
Fig. 1: Coronal T1WI: Hypointense mass is seen relative to corpora<br />
Fig. 2: Axial T2WI : Hyperintense pattern of the mass, compared to<br />
the corpora<br />
Fig. 3: Post-contrast axial WI: Homogenously enhanced mass<br />
Fig. 4: Post-contrast coronal T1WI: Multiple signal void foci represent<br />
hypervascularity<br />
involve the penile shaft (Fig.3, and 4 post-contrast<br />
images), stage III extend to inguinal nodes, and stage<br />
IV involve deep pelvic nodes or distant metastases [9] .<br />
Both computed tomography (CT) and MR imaging<br />
depict pelvic lymphadenopathy, but MR imaging is<br />
superior for evaluation of the primary lesion [10] .<br />
Fig. 5: Exploration of the mass before operation<br />
CONCLUSION<br />
Regardless of the <strong>org</strong>an of origin, MRI aids in<br />
the delineation of the extent of tumor dissemination,<br />
enabling detection of invasion into the corpora<br />
cavernosa or tunica albuginea. As mentioned previously,<br />
surgical treatment of carcinoma of the penis consists of<br />
either partial or total penectomy. Follow-up physical<br />
examination to look for local recurrence is limited in<br />
allowing the detection of pelvic lymphadenopathy and
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 340<br />
deep recurrence. Therefore, cross-sectional imaging is<br />
often performed. In addition to identification of sites<br />
of tumor recurrence, MR imaging can be helpful in<br />
the identification of normal post-surgical findings.<br />
Complications of surgery of the lower urinary tract can<br />
also be shown clearly with MR imaging.<br />
REFERENCES<br />
1. Pretorius ES, Siegelman ES, Ramchandani P, Banner<br />
MP. MR imaging of the penis. Radiographics 2001;<br />
S283-S299.<br />
2. Mardi K, Sharma J, Gupta S. Gastric collision tumor:<br />
A rare case of an adenocarcinoma and carcinoid<br />
tumor. The Internet Journal of Gastroenterology 2009<br />
<strong>Vol</strong>ume 7 Number 2. DOI: 10.5580/1e0b Available at:<br />
http://www.ispub.com/journal/the-internet-journalof-gastroenterology/volume-7-number-2/gastriccollision-tumor-a-rare-case-of-an-adenocarcinomaand-carcinoid-tumor.html<br />
3. Burgers JK, Badalament RA, Drago JR. Penile cancer.<br />
Urol Clin North Am 1992; 19:247-256.<br />
4. Landis SH, Murray T, Bolden S, Wingo PA. Cancer<br />
statistics. Cancer J Clin 1999; 49:8-31.<br />
5. Oto A, Meyer J. MR appearance of penile epithelioid<br />
sarcoma. Am J Roentgenol 1999; 172:555-556.<br />
6. Sirikci A, Bayram M, Demirci M, Bakir K, Sarica K.<br />
Penile epithelioid sarcoma: MR imaging findings. Eur<br />
Radiol 1999; 9:1593-1595.<br />
7. Hricak H, Marotti M, Gilbert TJ. Normal penile<br />
anatomy and abnormal penile conditions: evaluation<br />
with magnetic resonance imaging. Radiology 1988;<br />
169:683-690.<br />
8. John H, Kacl GM, Lehmann K, Debatin JF, Hauri D.<br />
Clinical value of pelvic and penile magnetic resonance<br />
angiography in preoperative evaluation of penile<br />
revascularization. Int J Impotence Res 1999; 11:83-86.<br />
9. Sica GT, Teeger S. MR imaging of scrotal, testicular, and<br />
penile diseases. MRI Clin North Am 1996; 4:545-563.<br />
10. Kaneko K, De Mouy E H, Lee BE. Sequential contrastenhanced<br />
MR imaging of the penis. Radiology 1994;<br />
191:75-77.
341<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Case Report<br />
Unstable Carpometacarpal Dislocation of Ulnar<br />
Four Fingers – An Easily Overlooked Injury<br />
Kumar Ashok, Singh Pritish, Badole Chandrashekhar<br />
Department of Orthopedics and Traumatology, Mahatma Gandhi Institute of Medical Sciences, Sewagram, Maharashtra, India<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 341 - 343<br />
ABSTRACT<br />
Multiple carpometacarpal (CMC) joint dislocations are<br />
rare. These clinical entities require significant amount of<br />
force to produce dislocation at this inherently stable joint<br />
level. We present a case of unstable dorsal dislocation<br />
of ulnar four carpometacarpal joints without associated<br />
fractures which was fixed with multiple K-wires with good<br />
functional outcome. Although carpometacarpal dislocations<br />
are uncommon entities, the case is reported here not just by<br />
virtue of its rarity but also because of a tendency for such<br />
injuries to be overlooked by surgeons with resultant delay in<br />
diagnosis and treatment.<br />
KEY-WORDS: internal fixation, k-wire<br />
INTRODUCTION<br />
Carpometacarpal (CMC) dislocations other than<br />
thumb are uncommon injuries accounting for less<br />
than 1% of hand injuries. It is rare for multiple CMC<br />
dislocations to occur without associated fractures [1,2] .<br />
Disability is significantly severe in untreated cases and<br />
initially neglected cases. The dislocation of multiple<br />
joints at CMC junction is not an anticipated diagnosis<br />
in cases of polytrauma with hand swelling. The injury<br />
is often missed or overlooked owing to many factors,<br />
both on the surgeon’s side and patient’s side [3] .<br />
CASE HISTORY<br />
A 26-year-old male presented to the emergency<br />
department after riding his motorbike into a roadside<br />
vehicle with gross swelling on the dorsum of the<br />
right hand and inability to move the wrist. The<br />
wrist movements were grossly restricted but finger<br />
movements were elicitable with pain. Distal hand<br />
perfusion was adequate.<br />
After adequate first aid measures, an X-ray of<br />
the hand in antero-posterior and oblique plane<br />
was ordered. Hand radiographs primarily revealed<br />
no bony injury as screened by emergency medical<br />
officer against awaited metacarpal fracture. A dorsal<br />
splint was applied taking cognizance of severe hand<br />
contusion. Screening of radiographs by consultants<br />
gave a clue to missed diagnosis of CMC dislocation.<br />
There was overlapping of joint surface of metacarpal<br />
bases over carpals. The lateral view hand radiograph<br />
promptly clarified diagnosis of CMC dislocation of<br />
ulnar four fingers. Lateral radiograph revealed a<br />
significant dorsal offset of metacarpal complex over<br />
carpals. There was no associated fracture of adjacent<br />
CMC entities (Fig. 1A, B)<br />
An unsuccessful closed reduction with slab<br />
application was attempted with linear traction along<br />
line of fingers. The reduction could only be maintained<br />
with multiple trans-CMC Kirschner wires (K-wires)<br />
(Fig. 1C). Postoperatively, wrist was splinted on dorsal<br />
side for six weeks; K-wires were removed at the end of<br />
six weeks. Reduction was satisfactorily sustained after<br />
slab removal as confirmed by check radiographs. Full<br />
range of motion of hand was regained with support<br />
of active hand-specific physiotherapy in the early<br />
convalescent period showing excellent functional<br />
result (Fig. 2A, B).<br />
DISCUSSION<br />
Less commonly encountered injury of CMC<br />
dislocation gains importance in emergency scenarios<br />
by virtue of it getting overlooked and a resultant<br />
delayed diagnosis. The delayed diagnosis and<br />
consequent delayed treatment of this joint dislocation<br />
has implications in functional outcome of wrist [4] .<br />
Many factors play a role in such uninvited<br />
overlook. Occurrence in settings of polytrauma,<br />
primary management by junior ranks, customary less<br />
Address correspondence to:<br />
Dr. Ashok Kumar, MS, Associate Professor, Department of Orthopedics and Traumatology, Mahatma Gandhi Institute of Medical sciences, Sewagram<br />
<strong>44</strong>2102, Wardha, Maharashtra, India. Tel: 0919850394016, E-mail ID: drashokbagotia@gmail.com
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 342<br />
Fig. 1: (A) Initial X-rays showing dorsal dislocation of ulnar four metacarpal bases with overlapping of joint surfaces; (B) Lateral X-ray<br />
showing dorsal offset of metacarpal complex; (C) postoperative radiograph showing satisfactory reduction and stabilization of joint with<br />
multiple Kirschner wires<br />
Fig. 2: (A) Radiograph at four weeks post injury after removal of K-wire showing satisfactory healing and congruent reduction of joint<br />
surfaces; (B) Post-rehabilitation photographs showing gradual improvement in hand function from four weeks to eight weeks<br />
revealing antero-posterior and oblique radiographs of<br />
hand, gross swelling of hand are incriminating factors.<br />
Literature also suggests repeated mistakes with this<br />
diagnosis even by experts [3] .<br />
Multiple CMC dislocations are often a high energy<br />
trauma often occurring in motorcyclists and boxers.<br />
Deduced pathway of injury appears to be forceful<br />
impact on metacarpal bases with a closed fist [5] . The<br />
patient will often have a diffuse swelling of dorsum of<br />
hand and distal forearm. It may be fluctuant depicting<br />
a hematoma collection. The characteristic hump of<br />
dislocation at root of hand is often masked by swelling<br />
of hand and forearm.<br />
Routinely ordered X-rays in antero-posterior<br />
and oblique plane suggest the diagnosis. Lateral<br />
projection radiograph will confirm the multiple CMC<br />
dislocations in suspicious cases [6] . Often dislocation<br />
is dorsal. There can be associated fracture of adjacent<br />
carpal or metacarpal bones. The clues for such an<br />
obscure diagnosis are loss of parallelism between joint<br />
spaces at base of metacarpals and carpals. There will<br />
be an overlap of joint surfaces of base of metacarpals<br />
over carpus. There can be appreciable offset of fifth<br />
metacarpal base as in our case [3,7] . A lateral radiograph<br />
will affirm the misalignments of metacarpals over<br />
carpus.
343<br />
Unstable Carpometacarpal Dislocation of Ulnar Four Fingers – An Easily Overlooked Injury<br />
<strong>December</strong> <strong>2012</strong><br />
Dislocation at CMC level essentially needs emergent<br />
reduction as soon as it is diagnosed. Failure to do so<br />
may result in impaired functional ability of hand,<br />
impaired grip, loss of transverse and longitudinal<br />
arches of hand and stiffness of hand. Danger of ulnar<br />
nerve injury in proximity of 5 th CMC joint and reflex<br />
sympathetic dystrophy will always be there [3,8] .<br />
Closed reduction is successful in fresh dislocations<br />
less than 10 days old. It can be maintained in plaster<br />
cast in majority cases. Intraoperatively ascertained<br />
unstable dislocations can be supplemented with trans-<br />
CMC K-wires along with external immobilisation. Late<br />
presentations and irreducible dislocations will require<br />
open relocation [1,7,9] . Removal of external splint and<br />
K - wires can be done as early as six weeks. An early<br />
physiotherapy will hasten rehabilitation of hand. Good<br />
functional results can be expected in properly treated<br />
cases with anatomical reduction.<br />
CONCLUSION<br />
Diagnosis of CMC dislocation requires a high<br />
index of suspicion, careful examination and good<br />
radiography. Otherwise, the outcome will be inferior.<br />
The treatment will require a relocation of joint<br />
structures on emergency basis and its maintenance to<br />
ensure a favourable outcome.<br />
REFERENCES<br />
1. Hsu JD, Curtis RM. Carpometacarpal dislocations on<br />
the ulnar side of the hand. J Bone Joint Surg Am 1970;<br />
52:927-930.<br />
2. Bergfield TG, Dupuy TE, Aulicino PL. Fracture<br />
dislocations of all five carpometacarpal joints – a case<br />
report. J Hand Surg 1985; 10:76-78.<br />
3. Henderson JJ, Arafa MA. Carpometacarpal dislocation:<br />
An easily missed diagnosis. J Bone Joint Surg Br 1987;<br />
69:212-214.<br />
4. Imbriglia JE. Chronic dorsal carpometacarpal<br />
dislocation of the index, middle, ring, and little fingers:<br />
a case report. J Hand Surg 1979; 4:343-345.<br />
5. Kneife F. Simultaneous dislocations of the five<br />
carpometacarpal joints. Injury 2002; 33:846-848.<br />
6. Parkinson RW, Paton RW. Carpometacarpal dislocation:<br />
an aid to diagnosis. Injury 1992; 23:187-188.<br />
7. Pankaj A, Malhotra R, Bhan S. Isolated dislocation of<br />
the four ulnar carpometacarpal joints. Arch Orthop<br />
Trauma Surg 2005; 125:541-5<strong>44</strong>.<br />
8. Lawlis JF, Gunther SF. Carpometacarpal dislocations.<br />
Long-term follow-up. J Bone Joint Surg Am 1991; 73:52-<br />
59.<br />
9. Kumar R, Malhotra R. Divergent fracture dislocation of<br />
the second carpometacarpal joint and the three ulnar<br />
carpometacarpal joints. J Hand Surg 2001; 26:123-129.
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 3<strong>44</strong><br />
Case Report<br />
Prostatic Adenocarcinoma and Chronic<br />
Lymphocytic Leukemia: A Case Report<br />
Abdul-Razzaq A Wraikat 1 , Tariq N Aladily 2<br />
1<br />
Department of Hematopathology, Jordan University Hospital, Amman, Jordan<br />
2<br />
Department of Pathology, Jordan University Hospital, Amman, Jordan<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 3<strong>44</strong> - 346<br />
ABSTRACT<br />
We report a rare case of a collision tumor. Our patient was<br />
found to have prostatic adenocarcinoma colliding with<br />
chronic lymphocytic leukemia, with no previous risk factors<br />
or even a clinical suspicion. We review the literature for<br />
similar cases and make an attempt to address the possible<br />
shared risk factors.<br />
KEYWORDS: collision tumors, multiple primaries,<br />
INTRODUCTION<br />
Synchronous involvement of the same tissue by two<br />
different tumors is rare, but has been well-reported [1] .<br />
Many examples of collision tumors having either prostatic<br />
adenocarcinoma or chronic lymphocytic leukemia were<br />
described, but only very rarely showed both neoplasms<br />
colliding together. Being a curious phenomenon which<br />
causes confusion in the diagnosis and treatment for<br />
physicians, with an ominous effect on the patient, we<br />
report this case in order to look for possible common risk<br />
factors and a proposed way of treatment.<br />
CASE REPORT<br />
A 76-year-old man, presented to the Jordan<br />
University Hospital in <strong>December</strong>, 2008 complaining of<br />
fatigue and weight loss of two months duration. He was<br />
a known case of diabetes mellitus. Physical examination<br />
demonstrated hepatosplenomegaly, but no enlarged<br />
lymph nodes. No urological findings were evident in<br />
history or physical examination. The initial workup<br />
showed abnormal complete blood count numbers.<br />
Hemoglobin concentration was 8.5 g/dl and the packed<br />
cell volume (PCV) was 25%. The white blood count<br />
was 22,000, out of which 77% were lymphocytes, while<br />
neutrophils formed 21% of blood cells. Platelet count was<br />
normal. The peripheral blood film showed microcytic<br />
hypochromic anemia, abnormal lymphocytes and<br />
normal platelets. Kidney and liver function tests were<br />
normal, with the exception of mild hypoproteinemia.<br />
Guaiac stool hemoccult test was negative. Urinalysis<br />
was normal.<br />
The peripheral blood film showed diffuse<br />
lymphocytosis. The lymphocytes were small and<br />
mature with numerous smudge cells and minimal<br />
atypia. Astonishingly, a bone marrow trephine biopsy<br />
demonstrated the same neoplastic lymphocytes<br />
intermingling with aggregates of large epithelioid cells<br />
(Fig. 1). Immunohistochemical study revealed the latter to<br />
be of prostatic origin (Fig. 2). Flow cytometry confirmed<br />
the diagnosis of chronic lymphocytic leukemia (CLL)<br />
(Fig. 3).<br />
The patient was retrospectively investigated for<br />
prostatic carcinoma. Serum total prostate specific antigen<br />
(PSA) was highly elevated (100), and pelvic magnetic<br />
resonance image (MRI) scan detected a prostatic mass<br />
and liver metastasis.<br />
DISCUSSION<br />
A collision tumor is defined as the co-existence of<br />
two adjacent but histologically different malignant<br />
neoplasms occurring in the same <strong>org</strong>an without<br />
histological admixture or an intermediate cell<br />
population zone [1] . It is termed collision tumor when<br />
the components are present in the originating <strong>org</strong>an<br />
and collision metastasis when they collide in a distant<br />
site discontinuous from the original <strong>org</strong>an. When<br />
both tumors fuse and intermingle to the extent that it<br />
is difficult to distinguish between them, the process<br />
then is called a composite tumor [1,2] . Another similar<br />
phenomenon is the hybrid tumor, which is composed<br />
of two different tumor entities, each of which conforms<br />
with an exactly defined tumor category and has<br />
an identical origin within the same topographical<br />
area [3] . This is different from multiphasic tumor<br />
which corresponds to one tumor entity with different<br />
morphological patterns. Discordant tumors are two<br />
Address correspondence to:<br />
Tariq Aladily, MD, Department of Pathology, Jordan University Hospital, Amman, Jordan. PO Box 142725, Amman, Jordan 11814. Tel:<br />
+962798837525, Fax: + 9626 5353388 E-mail: Tariq_nb@yahoo.com
345<br />
Prostatic Adenocarcinoma and Chronic Lymphocytic Leukemia: A Case Report<br />
<strong>December</strong> <strong>2012</strong><br />
Fig. 1: The bone marrow is diffusely replaced by two populations of<br />
cells. Aggregates of large epithelioid cells with clear cytoplasm and<br />
vesicular nuclei (arrow) are fused with sheets of well-differentiated,<br />
small, round lymphocytes of minimal atypia (star).<br />
Fig. 2: Immunohistochemical stains for leukocyte common antigen<br />
(LCA) and Prostate Specific Antigen (PSA) are positive in the<br />
colliding tumor cells.<br />
different types of tumors occurring far from each<br />
other [4] . Examples are illustrated in Table 1.<br />
Inherited cancer syndromes are examples of<br />
conditions where patients develop multiple different<br />
tumors and might have collision or composite<br />
phenomena. However, in sporadic cases, the tumors<br />
are unpredictable and might be causatively unrelated.<br />
Being an interesting phenomenon, with a confusing<br />
Fig. 3: Flow cytometry of peripheral blood. The gated lymphocytes<br />
are positive for CD19, CD23, CD5, CD79B and negative for FMC7.<br />
They show Lambda surface immunoglobulin restriction.
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 346<br />
Table 1: The differences between collision tumor and other similar phenomena<br />
Phenomenon Example Explanation<br />
Collision tumor<br />
Collision metastasis<br />
Composite tumor<br />
Hybrid tumor<br />
Multiphasic tumor<br />
Endometrial carcinoma and adjacent endocervical<br />
carcinoma<br />
Axillary lymph node showing breast and ovarian<br />
carcinomas<br />
A lymph node containing classic Hodgkin’s lymphoma and<br />
T-cell lymphoma<br />
Concomitant basal cell adenoma and canalicular adenoma<br />
of the parotid<br />
Wilm’s tumor<br />
Two tumors with different cell origin arise<br />
proximal to each other<br />
The two tumors meet outside their primary<br />
<strong>org</strong>ans<br />
Two different tumors fuse and intermingle<br />
between each other<br />
Two tumor entities share a similar cellular origin<br />
A single tumor entity with different morphologic<br />
patterns<br />
impact on the diagnosis and modality of treatment,<br />
dozens of cases of collision tumors have been reported.<br />
Besides, an attempt to discover a relationship between<br />
the originating tumors is usually made.<br />
Our case does not fall under any definition, as<br />
it includes one primary and one metastatic tumor.<br />
However, as there is no strict definition for this situation<br />
in the literature, we prefer to consider it as collision<br />
tumor, and to restrict “collision metastasis” to cases<br />
when both tumors collide outside their primaries [4] .<br />
Prostatic carcinoma occurring together with CLL was<br />
reported in the literature [5-8] , but with different clinical<br />
scenarios. None of the previously reported cases showed<br />
a collision metastasis between prostatic carcinoma and<br />
CLL. We are unaware of a similar reported case where<br />
collision metastasis was the first hint for the presence of<br />
two hidden neoplasms.<br />
It was demonstrated that patients with CLL are<br />
susceptible to develop other primary malignancies. In<br />
the large study carried out by Hisada et al, 2% of patients<br />
with CLL developed prostate carcinoma, with a relative<br />
risk of 1.01 [9] . The study did not specify the relationship<br />
between the two neoplasms or the common risk factors<br />
between them. However, the relative increased incidence<br />
of both neoplasms in older ages, with the relative<br />
indolent course of CLL, may suggest this occurrence.<br />
The immune derangement status, believed to occur in<br />
CLL [7,9] would predispose to a second malignancy, though<br />
this relation is not well proved in prostatic carcinoma. A<br />
recent finding showed that deletion at 13q14 occurs in<br />
60% of prostatic carcinoma and more than 50% of CLL,<br />
suggesting a shared pathway at the molecular level [10] .<br />
Our patient received hormonal therapy for prostate<br />
carcinoma. He was unfit for chemotherapy for CLL.<br />
Unfortunately, the patient had tumor progression and<br />
died seven months later from extensive metastasis.<br />
CONCLUSION<br />
We conclude that a collision tumor of both CLL and<br />
prostate carcinoma exists, although rare. Physicians<br />
should be aware of the possible second malignancy in<br />
patients with CLL, and should not stop at peripheral<br />
blood smear findings alone.<br />
ACKNOWLEDGMENT<br />
Conflict of interest: none<br />
REFERENCES<br />
1. Brahmania M, Kanthan CS, Kanthan R. Collision tumor<br />
of the colonic adenocarcinoma and ovarian granulosa cell<br />
tumor. World J Surg Oncol 2007; 5:118.<br />
2. Mardi K, Sharma J, Gupta S. Gastric collision tumor: A<br />
rare case of an adenocarcinoma and carcinoid tumor.<br />
The Internet Journal of Gastroenterology 2009 <strong>Vol</strong>ume<br />
7 Number 2. DOI: 10.5580/1e0b Available at: http://<br />
www.ispub.com/journal/the-internet-journal-ofgastroenterology/volume-7-number-2/gastric-collisiontumor-a-rare-case-of-an-adenocarcinoma-and-carcinoidtumor.html<br />
3. Seifert G, Donath K. Hybrid tumours of salivary glands.<br />
Definition and classification of five rare cases. Eur J<br />
Cancer B Oral Oncol 1996; 32:251-259.<br />
4. Cossman J, Schnitzer B, Deegan MJ. Coexistence of two<br />
lymphomas with distinctive histologic, ultrastructural, and<br />
immunologic features. Am J Clin Pathol 1978; 70:409-415.<br />
5. Molero T, Lemes A, de la lglesia S, Gomez Casares MT, del<br />
Mar Perera M, Jimenez S. Acute promyelocytic leukemia<br />
developing after radiotherapy for prostate cancer in a<br />
patient with chronic lymphocytic leukemia. Cancer Genet<br />
Cytogenet 2001; 131:141-143.<br />
6. Fehr M, Templeton A, Cogliatti S, et al. Primary<br />
manifestation of small lymphocytic lymphoma in the<br />
prostate. Onkologie 2009; 32:586-588.<br />
7. Nestler U, Deinsberger W, Grumbrecht S, Kuchelmeister<br />
K, Böker DK. CLL cells in a brain metastasis of bronchial<br />
adenocarcinoma in a patient with three different<br />
neoplasms: case report. Zentralbl Neurochir 2001; 62:57-<br />
61.<br />
8. Ballario R, Beltrami P, Cavalleri S, Ruggera L, Zorzi<br />
MG, Artibani W. An unusual pathological finding of<br />
chronic lymphocytic leukemia and adenocarcinoma of<br />
the prostate after transurethral resection for complete<br />
urinary retention: case report. BMC Cancer 2004; 4:95.<br />
9. Hisada M, Biggar RJ, Greene MH, Fraumeni JF Jr, Travis<br />
LB. Solid tumors after chronic lymphocytic leukemia.<br />
Blood 2001; 98:1979-1981.<br />
10. Calin GA, Dumitru CD, Shimizu M, et al. Frequent<br />
deletions and down-regulation of micro- RNA genes<br />
miR15 and miR16 at 13q14 in chronic lymphocytic<br />
leukemia. Proc Natl Acad Sci USA 2002; 99:15524-15529,<br />
Epub 2002 Nov 14.
347<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Letter to the Editor<br />
Individual Cyclooxygenase-2 Inhibitors on the Risk of<br />
Peptic Ulcer Disease: A Population-Based Cohort in Taiwan<br />
Shih-Wei Lai 1,2 , Kuan-Fu Liao 3-5 , Hsueh-Chou Lai 6,7 , Chih-Hsin Muo 8,9 , Fung-Chang Sung 8,9 , Pei-Chun Chen 10<br />
1<br />
School of Medicine, 3 Graduate Institute of Integrated Medicine, 6 School of Chinese Medicine, and<br />
8<br />
Department of Public Health, China Medical University, Taichung, Taiwan<br />
2<br />
Department of Family Medicine, 7 Department of Internal Medicine, 9 Management Office for Health Data,<br />
China Medical University Hospital, Taichung, Taiwan<br />
4<br />
Department of Internal Medicine, Taichung Tzu Chi General Hospital, Taichung, Taiwan<br />
5<br />
Department of Health Care Administration, Central Taiwan University of Science and Technology, Taichung, Taiwan<br />
10<br />
Graduate Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University ,<br />
Taipei, Taiwan<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 347 - 348<br />
To date, little evidence is available about the<br />
association between peptic ulcer disease and<br />
commercially available cyclooxygenase-2 inhibitors<br />
(COX-2 inhibitors) in Taiwan. Therefore, we conducted<br />
this population-based cohort study from the National<br />
Health Insurance (NHI) program in Taiwan to directly<br />
compare the effects of individual COX-2 inhibitors on<br />
the risk of peptic ulcer disease. The details of insurance<br />
program can be found in previous studies [1-4] . This<br />
study consisted of 1388 patients aged 20 years or older<br />
who had ever used COX-2 inhibitors (770 men and<br />
618 women, mean age 51.4 years, standard deviation<br />
18.5 years), and 5403 subjects who never used COX-<br />
2 inhibitors (3080 men and 2323 women, mean age<br />
50.6 years, standard deviation 18.2 years), frequency<br />
matched with sex, age, and index year for comparison,<br />
from 2000 to 2006. The incidence of peptic ulcer disease<br />
(based on International Classification of Diseases<br />
9th Revision - Clinical Modification, ICD-9 531, 532,<br />
533, and 534) at the end of 2009 was determined. An<br />
index date for patients with peptic ulcer disease was<br />
defined as their date of diagnosis. Subjects diagnosed<br />
with peptic ulcer disease before the index date were<br />
excluded from the study. The subjects, who had ever<br />
used combination of COX-2 inhibitors, or ever used<br />
aspirin, or other non-steroidal anti-inflammatory<br />
drugs (NSAIDs), were excluded from this study. Other<br />
co-morbidities before the index date were defined as<br />
follows: Helicobacter pylori infection (ICD-9 041.86),<br />
tobacco use (ICD-9 305.1), and alcoholism (ICD-9 303,<br />
305.00, 305.01, 305.02, 305.03 and V11.3, and A-code<br />
A215). The potentially related medications included<br />
were as follows: proton pump inhibitor, histamine-2<br />
receptor antagonist, clopidogrel, ticlopidine, systemic<br />
corticosteroid, warfarin, and heparin.<br />
We found that the incidence of peptic ulcer disease<br />
was 3.26-fold higher in the COX-2 inhibitors group,<br />
compared with the non-COX-2 inhibitors group<br />
(19.28 per 1000 person-years Vs 5.91 per 1000 personyears,<br />
95% confidence interval - CI = 2.63 - 4.04). After<br />
controlling for variables that were significantly related<br />
to COX-2 inhibitors found in the Chi-square test, the<br />
multivariable Cox proportional hazard regression<br />
showed use of COX-2 inhibitors was substantially<br />
associated with increased risk of peptic ulcer disease<br />
(hazard ratio - HR = 3.23, 95% CI = 2.59 - 4.04). In<br />
sub-analysis, individual COX-2 inhibitors, including<br />
celecoxib (HR = 3.29, 95%CI = 2.00 - 5.39), meloxicam<br />
(HR = 3.19, 95%CI = 2.33 - 4.36), nabumetone (HR =<br />
3.19, 95% CI = 2.39 - 4.25), and nimesulide (HR = 2.21,<br />
95% CI = 1.08-4.52), would substantially increase the<br />
risk of peptic ulcer disease, respectively.<br />
Previous studies have reported that COX-2<br />
inhibitors can reduce the risk of upper gastrointestinal<br />
ulcers, compared with non-selective NSAIDs [5, 6] . In<br />
Rostom et al’s systematic review [7] , COX-2 inhibitors<br />
correlate with lower risk of upper gastrointestinal<br />
ulcers (relative risk, 0.26 - 0.39), compared with<br />
non-selective NSAIDs. An observational study by<br />
Hsiang et al in Taiwan [8] , the annual incidence of<br />
Address correspondence to:<br />
Pei-Chun Chen, Ph.D., MSPH, Projected-appointed Assistant Professor, Graduate of Epidemiology and Preventive Medicine, National Taiwan University<br />
College of Public Health, No.17, Xu-Zhou Road, Taipei, 10020, Taiwan. Tel: 886-2-33668021, E-mail: eliz0118@gmail.com
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 348<br />
upper gastrointestinal ulcers in patients using COX-2<br />
inhibitors was 4.6%. In this present study, the overall<br />
risk of peptic ulcer disease was 3.23-fold higher in<br />
patients using COX-2 inhibitors, compared with nonuse<br />
of COX-2 inhibitors. In sub-analysis, patients who<br />
used celecoxib, meloxicam, or nabumetone for less<br />
than three months were at higher risk of peptic ulcer<br />
disease. As reported in the literature, celecoxib is more<br />
selective and safe than the other non-specific NSAIDs [5] .<br />
However, this present study showed that use of<br />
celecoxib had the highest risk of peptic ulcer disease.<br />
Because this is an observational study, we do not have<br />
a plausible explanation for this phenomenon.<br />
It is widely established that COX-2 inhibitors are<br />
only relatively rather than absolutely safe. These<br />
findings further alert clinicians about the risk of peptic<br />
ulcer disease when prescribing COX-2 inhibitors.<br />
Funding<br />
This study was supported in part by grants from<br />
Taiwan Department of Health, Clinical Trial and<br />
Research Center of Excellence (DOH101-TD-B-111-<br />
004), the Cancer Research Center of Excellence (DOH<br />
101-TD-C-111-005), and the National Science Council<br />
(NSC 100-2621-M-039-001), and China Medical<br />
University Hospital (1MS1). The funding agencies did<br />
not influence the study design, data collection and<br />
analysis, decision to publish, or preparation of the<br />
manuscript.<br />
ACKNOWLEDGEMENT<br />
The authors thank the National Health Research<br />
Institute in Taiwan for providing the insurance claims<br />
data.<br />
Authorship: The first two authors contributed equally<br />
to this study.<br />
Conflict of Interest : The authors disclose no conflicts<br />
of interest.<br />
REFERENCES<br />
1. Lai SW, Muo CH, Liao KF, Sung FC, Chen PC. Risk of<br />
acute pancreatitis in type 2 diabetes and risk reduction<br />
on anti-diabetic drugs: a population-based cohort study<br />
in Taiwan. Am J Gastroenterol 2011; 106:1697-1704.<br />
2. Lai SW, Chen PC, Liao KF, Muo CH, Lin CC, Sung FC.<br />
Risk of hepatocellular carcinoma in diabetic patients<br />
and risk reduction associated with anti-diabetic therapy:<br />
a population-based cohort study. Am J Gastroenterol<br />
<strong>2012</strong>; 107:46-52.<br />
3. Lai SW, Liao KF, Chen PC, Tsai PY, Hsieh DP, Chen CC.<br />
Antidiabetes drugs correlate with decreased risk of<br />
lung cancer: a population-based observation in Taiwan.<br />
Clin Lung Cancer <strong>2012</strong>; 13:143-148.<br />
4. Liao KF, Lai SW, Li CI, Chen WC. Diabetes mellitus<br />
correlates with increased risk of pancreatic cancer:<br />
A population-based cohort study in Taiwan. J<br />
Gastroenterol Hepatol <strong>2012</strong>; 27:709-713.<br />
5. Goldstein JL, Silverstein FE, Agrawal NM, et al. Reduced<br />
risk of upper gastrointestinal ulcer complications with<br />
celecoxib, a novel COX-2 inhibitor. Am J Gastroenterol<br />
2000;95:1681-1690.<br />
6. Hunt RH, Harper S, Watson DJ, et al. The gastrointestinal<br />
safety of the COX-2 selective inhibitor etoricoxib<br />
assessed by both endoscopy and analysis of upper<br />
gastrointestinal events. Am J Gastroenterol 2003;<br />
98:1725-1733.<br />
7. Rostom A, Muir K, Dube C, et al. Gastrointestinal<br />
safety of cyclooxygenase-2 inhibitors: a Cochrane<br />
Collaboration systematic review. Clin Gastroenterol<br />
Hepatol 2007; 5:818-828, 828 e811-815; quiz 768.<br />
8. Hsiang KW, Chen TS, Lin HY, et al. Incidence and<br />
possible risk factors for clinical upper gastrointestinal<br />
events in patients taking selective cyclooxygenase-2<br />
inhibitors: A prospective, observational, cohort study<br />
in Taiwan. Clin Ther 2010; 32:1294-1303.
349<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Selected Abstracts of Articles Published<br />
Elsewhere by Authors in Kuwait<br />
Kuwait Medical Journal <strong>2012</strong>, <strong>44</strong> (4): 349 - 352<br />
Risk Factors for Multiple Sclerosis in Kuwait:<br />
A Population-Based Case-Control Study<br />
Hanan H Al-Afasy, Mohammed A Al-Obaidan, Yousef A Al-Ansari, Sarah A Al-Yatama, Mohammed S Al-Rukaibi,<br />
Nourah I Makki, Anita Suresh, Saeed Akhtar<br />
Department of Community Medicine and Behavioural Sciences, Faculty of Medicine, Kuwait University, Jabriya,<br />
Kuwait. E-mail: saeed.akhtar@hsc.edu.<strong>kw</strong><br />
Neuroepidemiology 2013; 40:30-35 (DOI: 10.1159/000341240)<br />
Multiple sclerosis (MS) is a chronic and progressively disabling inflammatory autoimmune disorder of<br />
the central nervous system. MS has a multifactorial etiology and is triggered by environmental factors<br />
in individuals with complex genetic risk profiles. The epidemiology of MS changes with the spatial and<br />
temporal distribution of these genetic and nongenetic risk factors. This population-based matched casecontrol<br />
study aimed to determine the risk factors for MS in Kuwait. From May 2 to 9, 2010, we enrolled 101<br />
confirmed MS cases using the list frame maintained by the Multiple Sclerosis Association of Kuwait. For<br />
each case, two population controls individually matched for age (± 2 years), gender and nationality were<br />
selected. Data on demographic, socioeconomic variables, potential genetic and environmental factors were<br />
collected using a structured questionnaire. For a case, the questions were directed to the period that preceded<br />
the recognition of the disease, while for each of the two matched controls, a date of ‘pseudodiagnosis’ of<br />
MS was established, i.e. the date on which the control subject was of the same age as his/her matched case<br />
was at MS diagnosis and accordingly questions were directed to the preceding period. The multivariable<br />
conditional logistic regression model showed that compared with controls, the cases were significantly more<br />
likely to have a family history of MS [matched odds ratio (OR) adj<br />
= 6.7; 95% confidence interval (95% CI): 2.5<br />
- 18.0; p < 0.001] or have suffered from a head trauma in the past before MS diagnosis (matched OR adj<br />
= 2.6;<br />
95% CI: 1.2 - 5.5; p = 0.014). Furthermore, compared with controls, cases were significantly more likely to<br />
have stayed in Kuwait during the Iraqi invasion of 1990 (matched OR adj<br />
= 1.8; 95% CI: 1.1 - 3.5; p = 0.022).<br />
This study showed that a family history of MS, a history of head injury, and presence in Kuwait at the time of<br />
the Iraqi invasion of 1990 were associated with a significantly increased MS risk. Future retrospective cohort<br />
studies by using existing biological and epidemiological databases may provide a clue to MS etiology.<br />
Rhizoremediation of Oil-Contaminated Sites: A Perspective on the Gulf<br />
War Environmental Catastrophe on the State of Kuwait<br />
Yateem A<br />
Biotechnology Department, Kuwait Institute for Scientific Research, P.O. Box 24885, 13109, Safat, Kuwait. E-mail:<br />
ayateem@kisr.edu.<strong>kw</strong><br />
Environ Sci Pollut Res Int. <strong>2012</strong> Sep 23. DOI 10.1007/s11356-012-1182-8<br />
The Gulf War brought about to the State of Kuwait some of the worst environmental pollution as a result of<br />
oil spill. Since 1995, research programs have been initiated to avoid further damage to the Kuwaiti desert<br />
and marine environment and to restore and rehabilitate the polluted land, water, and air ecosystems.<br />
During the following 15 years, different bioremediation methods both on laboratory and small field scales<br />
were tested and evaluated. The findings of these studies were implemented to establish a bio-park in<br />
which ornamental shrubs and trees were grown in bioremediated soil. This review will focus on Kuwait’s<br />
experience in rhizoremediation and its positive impacts on oil-contaminated sites.
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 350<br />
Some Epidemiological Measures of Cancer in Kuwait:<br />
National Cancer Registry Data from 2000 -2009<br />
El-Basmy A, Al-Mohannadi S, Al-Awadi A<br />
Cancer Epidemiology and Registration Unit, Ministry of Heath, State of Kuwait. E-mail: elbasmy@yahoo.com<br />
Asian Pac J Cancer Prev <strong>2012</strong>; 13:3113-3118<br />
Introduction: Cancer is the second cause of death in Kuwaiti people after cardiovascular diseases.<br />
This study is the first in the country to describe epidemiological measures related to cancer in this<br />
population.<br />
Methods: Data obtained from the Kuwait cancer registry included all Kuwaiti patients between years<br />
2000 - 2009. Analyses were conducted using age-specific rates, the age-standardization-direct method,<br />
95% confidence intervals (95% CI), cumulative risk by the age of 74 years, limited-duration prevalence,<br />
mortality and forecasting to year 2029.<br />
Results: It was noted that the commonest cancer sites were colorectal with an age standardized incidence<br />
rate (ASIR) of 16.1/100,000 in males and breast (49.4/100,000) in the female population. The trend of cancer<br />
incidence (1974 - 2009) showed no statistically significant change. First causes of death due to cancer were<br />
female breast 8(6.4 - 9.6)/100,000 and lung (males) 8.1/100,000 (6.6 - 10.0). The risk of developing cancer<br />
by the age of 74 was 13.4% (1/8) and 14.3% (1/7) in males and females respectively, and the risk of dying<br />
from cancer in the same age group was 1/17 and 1/23. By the end of 2009, prevalent cases represented<br />
0.52% of the Kuwaiti population. In the year 2029, the total number of cancer cases is expected to reach<br />
1200 cases compared to 889 cases in 2009.<br />
Conclusions and recommendations: The most common cancers in Kuwait (breast, colorectal and lung)<br />
are largely preventable. Prompt and effective interventional prevention programs that vigorously involve<br />
diet, anti-smoking and physical activity for both sexes are urgently required.<br />
Clinical Audits in a Postgraduate General Practice Training<br />
Program: An Evaluation of 8 Years’ Experience<br />
Al-Baho A, Serour M, Al-Weqayyn A, Alhilali M, Sadek AA<br />
Department of Health Promotion, Ministry of Health, Kuwait City, Al-Kuwait, Kuwait<br />
PLoS One <strong>2012</strong>; 7(9):e43895. Epub <strong>2012</strong> Sep 10<br />
Background: Clinical audit can be of valuable assistance to any program which aims to improve the<br />
quality of health care and its delivery. Yet without a coherent strategy aimed at evaluating audits’<br />
effectiveness, valuable opportunities will be overlooked. Clinical audit projects are required as a part of<br />
the formative assessment of trainees in the Family Medicine Residency Program (FMRP) in Kuwait. This<br />
study was undertaken to draw a picture of trainees’ understanding of the audit project with attention to<br />
the knowledge of audit theory and its educational significance and scrutinize the difficulties confronted<br />
during the experience.<br />
Methodology/Principal Findings: The materials included the records of 133 audits carried out by<br />
trainees and 165 post course questionnaires carried out between 2004 and 2011. They were reviewed and<br />
analyzed. The majority of audit projects were performed on diabetic (<strong>44</strong>.4%) and hypertensive (38.3%)<br />
care. Regarding audits done on diabetic care, they were carried out to assess doctors’ awareness about<br />
screening for smoking status (8.6%), microalbuminuria (19.3%), hemoglobin A1c (15.5%), retinopathy<br />
(10.3%), dyslipidemia (15.8%), peripheral neuropathy (8.8%), and other problems (21.7%). As for audits<br />
concerning hypertensive care, they were carried out to assess doctors’ awareness about screening for<br />
smoking status (38.0%), obesity (26.0%), dyslipidemia (12.0%), microalbuminuria (10.0%) and other<br />
problems (14.0%). More than half the participants (68.48%) who attended the audit course stated that they
351<br />
Selected Abstracts of Articles Published Elsewhere by Authors in Kuwait <strong>December</strong> <strong>2012</strong><br />
‘definitely agreed’ about understanding the meaning of clinical audit. Most of them (75.8%) ‘definitely<br />
agreed’ about realizing the importance of clinical audit in improving patients’ care. About half (49.7%) of<br />
them ‘agreed’ that they can distinguish between ‘criteria’ and ‘standards’.<br />
Conclusion: The eight years of experience were beneficial. Trainees showed a good understanding of the<br />
idea behind auditing the services provided. They demonstrated their ability to improve the care given in<br />
health centers in which these projects were undertaken.<br />
Hospitalization Patterns and Outcomes of<br />
Infants with Influenza A(H1N1) in Kuwait<br />
Husain EH, Alkhabaz A, Al-Qattan HY, Al-Shammari N, Owayed AF<br />
Faculty of Medicine, Kuwait University, Kuwait. E-mail: ehusain@hsc.edu.<strong>kw</strong><br />
J Infect Dev Ctries <strong>2012</strong>; 6:632-236. doi: 10.3855/jidc.2339<br />
Introduction: Infants represent an important risk group for influenza associated hospitalizations and<br />
mortality. This study evaluated the clinical presentations, hospitalization course and outcome of infants<br />
hospitalized with the pandemic influenza AH1N1 [Influenza A(H1N1)pdm09] in relation to their previous<br />
health status.<br />
Methodology: We conducted a retrospective chart review of hospitalized infants with laboratoryconfirmed<br />
Influenza A(H1N1)pdm09 infection in two hospitals in Kuwait. Demographic characteristics,<br />
pre-existing high-risk medical conditions, clinical presentations, complications and mortality were<br />
analyzed. Previously healthy infants’ data were compared with infants with pre-existing high-risk medical<br />
conditions for severity of the illness and outcome.<br />
Results: We identified 62 infants comprising 32% of all admissions with Influenza A(H1N1)pdm09.<br />
The median age ± SD was 7 ± 4 months. Nineteen (31%) had pre-existing high-risk medical conditions.<br />
Complications were documented in 53% of previously healthy infants compared to 47% in high-risk<br />
infants. Mean duration of hospitalization was 4.9 days in healthy infants and 6.7 for infants with highrisk<br />
medical conditions. Bacterial pneumonia complicated 7% of previously healthy infants compared to<br />
26% with high-risk conditions (P = 0.03). Four infants (6.5%) required admission to the intensive care unit<br />
(ICU), of whom three had high risk medical condition.<br />
Conclusion: The majority of hospitalized infants with Influenza A(H1N1)pdm09 were previously healthy.<br />
Prolonged hospitalization, ICU admission and mortality were more observed in infants with high-risk<br />
medical conditions. According to the latest Advisory Committee on Immunization Practices (ACIP)<br />
recommendations, annual influenza vaccination is recommended for any child six months of age and<br />
older, particularly those with risk factors.<br />
Pre-hypertension and Hypertension in College<br />
Students in Kuwait: A Neglected Issue<br />
Al-Majed HT, Sadek AA<br />
Department of Applied Medical Sciences, College of Health Sciences, Public Authority of Applied<br />
Education and Training, Kuwait. E-mail: almajed777@hotmail.com<br />
J Family Community Med <strong>2012</strong>; 19:105-112<br />
Objective: To determine the proportion of pre-hypertension and hypertension in college students in<br />
Kuwait and their related risk factors.
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 352<br />
Materials and Methods: A total of 803, randomly selected students aged 17 to 23 years (346 male, 457<br />
female) from different colleges in Kuwait, were included in the study between 2009 and 2010. Systolic and<br />
diastolic blood pressure measurements were taken by trained personnel. Pre-hypertension was defined as<br />
systolic pressure between 120 and 139 mm Hg or diastolic pressure between 80 and 89 mm Hg. Risk factor<br />
measurements that were determined, included smoking, body mass index (BMI), and family history of<br />
hypertension. Blood samples were collected and impaired glucose tolerance (IGT) and lipid profile levels<br />
were determined.<br />
Results: There were no hypotensive students. Normotensives constituted 53.5% (n = 430), pre-hypertensives<br />
formed 39.5% (n = 317), and hypertensive students comprised of 7% (n = 56). The overall proportions<br />
of hypertension and pre-hypertension were higher among male students (85.7 and 64.4%) than female<br />
students (14.3 and 35.6%), respectively. Hypertensive and pre-hypertensive students versus normotensive<br />
students had significantly higher levels of BMI-based obesity, smoking, glycated hemoglobin (HbA1c),<br />
and IGT. Also, hypertensive and pre-hypertensive, compared to normotensive students, had significantly<br />
higher proportions (21.4, 18.3, and 4.0%, respectively) of risky high-density lipoprotein (HDL) level<br />
(< 1 mg / dL), cholesterol (7.1, 3.8, and 1.4%, respectively), and triglycerides (TG) (17.9, 9.1, and 7.9%,<br />
respectively) where p was< 0.001, 0.016, and 0.051, respectively.<br />
Conclusion: Hypertensive and pre-hypertensive students showed elevated levels of lipids and BMIbased<br />
obesity more than normotensive students. TG, HDL, HbA1c, and cholesterol appeared to influence<br />
pre-hypertension.<br />
Closed Reduction and Percutaneous Cannulated Screws Fixation<br />
of Displaced Intra-Articular Calcaneus Fractures<br />
Foot Ankle Surg <strong>2012</strong>; 18:164-179<br />
Abdelgaid SM<br />
AL-Razi Orthopedic Hospital, Kuwait. E-mail: Sherifmaa@yahoo.com<br />
Background: Displaced intra-articular calcaneal fractures remain a therapeutic challenge due to fracture<br />
complexity and different treatment options. One of the adverse effects of operative treatment is secondary<br />
damage to soft tissues. To avoid soft tissue complications, several less invasive procedures have been<br />
introduced. The most frequently used minimally invasive technique is closed reduction of fracture and<br />
percutaneous cannulated screws fixation.<br />
Method: This study evaluates the medium-term outcome of a new technique of percutaneous treatment in<br />
60 cases operated in Al-Razi orthopedic hospital in Kuwait in the period from 2007 to 2009. The described<br />
technique applies the principle of closed manipulation with new reduction method using a medial<br />
subperiosteal tunnel to manipulate the fragments. The technique involves new method of distribution of<br />
screws required to fix the fracture.<br />
Results: According to the American Orthopedic Foot and Ankle Society Hind foot Score, 38.3% of all cases<br />
(22 cases) had excellent results, 41% good (25 cases), fair results in 15% (9 cases), and poor results in 5% (4<br />
cases). The overall satisfactory results (excellent and good) were 79.3%.<br />
Conclusion: The technique is suitable for most types of intra-articular fractures especially in patients with<br />
compromised soft tissues in which open reduction and internal fixation is contraindicated.
353<br />
KUWAIT MEDICAL JOURNAL<br />
<strong>December</strong> <strong>2012</strong><br />
Forthcoming Conferences and Meetings<br />
Compiled and edited by<br />
Babichan K Chandy<br />
Kuwait Medical Journal <strong>2012</strong>; <strong>44</strong> (4): 353 - 361<br />
Internal Medicine for Primary Care: Gastro/Endo/<br />
Neuro<br />
Dec 28 - 30, <strong>2012</strong><br />
United States / New York<br />
Contact: Medical Education Resources<br />
Tel: 303-798-9682; Fax: 303-798-5731<br />
Email: info@mer.<strong>org</strong><br />
Primary Care Guide to Emergencies<br />
Dec 28 - 29, <strong>2012</strong><br />
United Kingdom / London<br />
Contact: Anthone Nancy, Medical-Credits by MedCW<br />
Tel: 011-32-1-643-8402<br />
Email: nancy.anthone@medical-credits.com<br />
Medical CBT: Ten-Minute Techniques For Real Doctors<br />
(Cognitive Behavior Therapy)<br />
Jan 3 - 5, 2013<br />
British Columbia / Whistler<br />
Contact: Greg Dubord, MD, CME Director, CBT<br />
Canada<br />
Tel: 877-466-8228<br />
Email: registrar@cbt.ca<br />
Breast Imaging From A - Z<br />
Jan 4 - 6, 2013<br />
United States / California / Pebble Beach<br />
Contact: Wendy Ryals, Office Manager, IICME<br />
Tel: 205-467-0290; Fax: 205-467-0195<br />
Email: wryals@iicme.net<br />
13 th Annual Multi-Specialty Conference on Medical<br />
Negligence & Risk Management<br />
Jan 5 - 8, 2013<br />
United States / Hawaii / Kauai<br />
Contact: Boston University School of Medicine,<br />
Continuing Medical Education<br />
Tel: 800-688-2475; Fax: 617-638-4905<br />
Primary Care - Topics in Mental Health<br />
Jan 5 - 12, 2013<br />
United States / Florida / Fort Lauderdale<br />
Contact: Continuing Education, Inc., Meeting Planner,<br />
Continuing Education, Inc.<br />
Tel: 800-422-0711 or 727-526-1571; Fax: 727-522-8304<br />
Email: contactus@continuingeducation.net<br />
Drug Development, Pharmacokinetics and Imaging<br />
Jan 7 - 11, 2013<br />
United Kingdom / Oxford<br />
Contact: Sarah Kelly, Department for Continuing<br />
Education, University of Oxford<br />
Tel: 011-<strong>44</strong>-18-6528-6955<br />
Email: expther@conted.ox.ac.uk<br />
Core Skills in Hand Surgery<br />
Jan 8 - 10, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
Intermediate Cardiac Surgery<br />
Jan 8 - 9, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
8 th Medical Dermatology Conference<br />
Jan 10, 2013<br />
United Kingdom / London<br />
Contact: Chris Garrett, British Association of<br />
Dermatologists<br />
Email: conference@bad.<strong>org</strong>.uk<br />
Pathogenic Processes in Asthma And COPD<br />
Jan 10 - 15, 2013<br />
New Mexico / Santa Fe<br />
Contact: , Keystone Symposia on Molecular and<br />
Cellular Biology<br />
Tel: 800-253-0685 or 970-262-1230; Fax: 970-262-1525<br />
Email: info@keystonesymposia.<strong>org</strong><br />
6 th Imaging & Physiology Summit / 7 th Chronic Total<br />
Occlusion Live 2013<br />
Jan 11 - 12, 2013<br />
South Korea / Seoul<br />
Contact: Secretariat, CardioVascular Research<br />
Foundation (CVRF)<br />
Fax: 011-82-2-475-6898<br />
Email: cvrf@summitMD.com
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 354<br />
FRCS (Tr and Orth) Viva Course for Orthopaedic<br />
Surgeons<br />
Jan 11 - 12, 2013<br />
United Kingdom<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
6 th International Hokkaido Trauma Conference<br />
Jan 13 - 18, 2013<br />
Japan / Rusutsu<br />
Tel: 011-61-3-9342-7540<br />
Fax: 011-61-3-9342-8623<br />
Advances in Tropical Medicine<br />
Jan 13 - 15, 2013<br />
Tanzania / Moshi<br />
Contact: Meeting Department, American Academy of<br />
Dermatology<br />
Fax: 847-330-1090<br />
Email: moshi@aad.<strong>org</strong><br />
Hematopoiesis<br />
Jan 14 - 19, 2013<br />
United States / Colorado / Steamboat<br />
Contact: Keystone Symposia on Molecular and Cellular<br />
Biology<br />
Tel: 800-253-0685 or 970-262-1230<br />
Fax: 970-262-1525<br />
Email: info@keystonesymposia.<strong>org</strong><br />
Pediatric Infectious Diseases: An Evidence-Based<br />
Approach<br />
Jan 14 - 18, 2013<br />
United States / Florida / Sarasota<br />
Contact: Trish or Tara, American Medical Seminars,<br />
Inc.<br />
Tel: 866-267-4263 or 941-388-1766; Fax: 941-365-7073<br />
Email: tkeeton@ams4cme.com<br />
Amputations<br />
Jan 15 - 16, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
Intermediate Skills in ENT<br />
Jan 15 - 16, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
2 nd ESCMID Conference on Invasive Fungal<br />
Infections<br />
Jan 16 - 18, 2013<br />
Italy / Rome<br />
Contact: Marco Moschin, Conference Secretariat, ICO<br />
Tel: 011-39-41-526-2530; Fax: 011-39-41-527-1129<br />
Advanced Cognitive Therapy Studies - An Introduction<br />
to Service Development<br />
Jan 16 - Mar 20, 2013<br />
United Kingdom / Oxford<br />
Contact: Department for Continuing Education,<br />
University of Oxford<br />
Tel: 011-<strong>44</strong>-18-6527-0360<br />
Email: octc@oxfordhealth.nhs.uk<br />
2013 ICJR 5 th Annual Winter Hip & Knee Course<br />
Jan 17 - 20, 2013<br />
United States / Colorado / Vail<br />
Contact: ICJR<br />
Tel: 760-942-7859; Fax: 760-942-1140<br />
Email: info@icjr.net<br />
2013 National Conference of Urological Society Of<br />
India<br />
Jan 17 - 20, 2013<br />
India / Pune<br />
Contact: Dr. Jaydeep Date, Organising Secretary,<br />
Lokmanya Hospital<br />
Email: usicon2013@gmail.com<br />
5 th Breast Gynecological International Cancer<br />
Conference<br />
Jan 17 - 18, 2013<br />
Egypt / Cairo<br />
Contact: Prof. Hesham El Ghazaly, Professor of Clinical<br />
Oncology, Head of Oncology Department [GOTHI],<br />
BGICS President, BGICS<br />
Tel: 011-20-100-130-0236<br />
Email: bgicc2010@gmail.com<br />
Controversies and Updates in Vascular Surgery<br />
(CACVS) 2013<br />
Jan 17 - 19, 2013<br />
France / Paris<br />
Contact: Michèle Caboste, divine [id]<br />
Fax: 011-33-4-9157-1961<br />
Email: mcaboste@divine-id.com<br />
Current Topics in Anesthesia<br />
Jan 17 - 20, 2013<br />
United States / Florida / Duck Key<br />
Contact: Northwest Anesthesia Seminars, Conference/<br />
Meetings, Northwest Anesthesia Seminars, Inc.<br />
Tel: 800-222-6927; Fax: 509-547-1265<br />
Email: info@nwas.com
355<br />
Forthcoming Conferences and Meetings <strong>December</strong> <strong>2012</strong><br />
Advances in Thyroid Cancer Diagnosis and Therapy<br />
Jan 18 - 19, 2013<br />
United States / Arizona / Phoenix<br />
Contact: Beverly Hastings, American Association of<br />
Clinical Endocrinologists<br />
Tel: 904-404-4162<br />
Email: bhastings@aace.com<br />
Controversies & Updates in Venous Disease<br />
Jan 18 - 19, 2013<br />
France / Paris<br />
Contact: Michèle Caboste, divine [ID]<br />
Fax: 011-33-4-9157-1961<br />
Email: mcaboste@divine-id.com<br />
Essential Obstetric Ultrasound Course<br />
Jan 18, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Obstetricians and<br />
Gynaecologists<br />
Email: events@rcog.<strong>org</strong>.uk<br />
Cardiology, Endocrinology + Infectious Diseases:<br />
South East Asia CME Cruise<br />
Jan 20 - Feb 3, 2013<br />
Singapore / Singapore<br />
Contact: Sea Courses Cruises<br />
Tel: 888-647-7327; Fax: 888-547-7337<br />
Email: cruises@seacourses.com<br />
Malaria<br />
Jan 20 - 25, 2013<br />
United States / Louisiana / New Orleans<br />
Contact: Keystone Symposia on Molecular and Cellular<br />
Biology<br />
Tel: 800-253-0685 or 970-262-1230; Fax: 970-262-1525<br />
Email: info@keystonesymposia.<strong>org</strong><br />
22 nd Annual Musculoskeletal MR Course<br />
Jan 21 - 25, 2013<br />
United States / Florida / Palm Beach<br />
Contact: Wendy Ryals, Office Manager, IICME<br />
Tel: 205-467-0290 ext. 1; Fax: 205-467-0195<br />
Email: wryals@iicme.net<br />
Delayed Effects of Disease & Treatment on Individuals<br />
Who Have Had Head & Neck Cancer<br />
Jan 21, 2013<br />
United Kingdom / London<br />
Contact: Royal Marsden<br />
Tel: 011-<strong>44</strong>-20-7808-2921<br />
Email: conferencecentre@rmh.nhs.uk<br />
MRI of the Joints<br />
Jan 21 - 25, 2013<br />
Slovenia / Ljubljana<br />
Contact: Jana Schiro<br />
Tel: 011-386-1-522-8530; Fax: 011-386-1-522-2497<br />
Email: emricourse.lj@gmail.com<br />
4 th Advanced Course on Knee Surgery<br />
Jan 22 - 27, 2013<br />
France / Val D’isere<br />
Contact: Advanced Course on Knee Surgery<br />
Tel: 011-33-4-7906-2123; Fax: 011-33-4-7906-1904<br />
Email: knee<strong>2012</strong>@valdisere-congres.com<br />
Operative Skills in Urology: Modules 1 And 2<br />
Jan 22 - 23, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
Advanced Cardiovascular Intervention<br />
Jan 23 - 25, 2013<br />
United Kingdom / London<br />
Contact: Millbrook Medical Conferences<br />
Tel: 011-<strong>44</strong>-14-5555-2559; Fax: 011-<strong>44</strong>-14-5555-7377<br />
Email: ACI2013@millbrookconferences.co.uk<br />
Case Studies in Structural Heart Disease And<br />
Intervention<br />
Jan 24 - 27, 2013<br />
United States / Florida / Miami Beach<br />
Contact: Sheila Fick, Meeting Specialist, Mayo Clinic<br />
Tel: 507-284-0536; Fax: 507-266-7403<br />
Email: fick.sheila@mayo.edu<br />
20 th International Symposium on Pancreatic and<br />
Biliary Endoscopy<br />
Jan 25 - 27, 2013<br />
United States / California / Los Angeles<br />
Contact: Lalita Gupta, Continuing Medical Education,<br />
Cedars - Sinai Medical Center<br />
Tel: 310-423-5548; Fax: 310-423-8596<br />
Email: cme@cshs.<strong>org</strong><br />
Cardio/Pulmonary Medicine for Primary Care<br />
Jan 25 - 27, 2013<br />
United States / Nevada / Las Vegas<br />
Contact: Medical Education Resources<br />
Tel: 303-798-9682; Fax: 303-798-5731<br />
Email: info@mer.<strong>org</strong><br />
Fetal/Neonatal Imaging 2013<br />
Jan 25 - 27, 2013<br />
United States / Florida / Orlando<br />
Contact: Society for Pediatric Radiology<br />
Tel: 703-648-0680 ext. 4691; Fax: 703-648-1863<br />
Email: sprmeetings@acr.<strong>org</strong><br />
Advanced Suturing and Wound Repair<br />
Jan 26 - 27, 2013<br />
United States / Texas / San Antonio<br />
Contact: Julie Woods, Registration and Product<br />
Coordinator, National Procedures Institute<br />
Tel: 800-674-2631; Fax: 512-329-0<strong>44</strong>2<br />
Email: julie@npinstitute.com
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 356<br />
Melanoma 2013: 23 rd Annual Cutaneous Malignancy<br />
Update<br />
Jan 26 - 27, 2013<br />
United States / California / San Diego<br />
Contact: Scripps Health<br />
Tel: 858-652-5400; Fax: 858-652-5565<br />
Email: med.edu@scrippshealth.<strong>org</strong><br />
Society of Thoracic Surgeons 49 th Annual Meeting<br />
Jan 26 - 30, 2013<br />
United States / California / Los Angeles<br />
Contact: Society of Thoracic Surgeons<br />
Tel: 312-202-5800; Fax: 312-202-5801<br />
14 th International Colorectal Forum<br />
Jan 27 - 29, 2013<br />
Switzerland / Verbier<br />
Contact: M & S Event Services<br />
Tel: 011-41-27-771-8585; Fax: 011-41-27-771-8586<br />
Email: icf@ms-event.ch<br />
Cancer Immunology and Immunotherapy<br />
Jan 27 - Feb 1, 2013<br />
British Columbia / Vancouver<br />
Contact: Keystone Symposia on Molecular and Cellular<br />
Biology<br />
Tel: 800-253-0685 or 970-262-1230; Fax: 970-262-1525<br />
Email: info@keystonesymposia.<strong>org</strong><br />
Arrhythmias and the Heart: A Cardiology Update<br />
Jan 28 - Feb 1, 2013<br />
Hawaii / Maui<br />
Contact: Mayo Clinic in Rochester<br />
Tel: 507-284-2509<br />
Fax: 507-284-0532<br />
Geriatrics: A Primary Care Approach to the Aging<br />
Population<br />
Jan 28 - Feb 1, 2013<br />
United States / Florida / Sarasota<br />
Contact: Trish or Tara, American Medical Seminars,<br />
Inc.<br />
Tel: 866-267-4263 or 941-388-1766; Fax: 941-365-7073<br />
Email: tkeeton@ams4cme.com<br />
32 nd Annual Advanced Nephrology: Nephrology for<br />
the Consultant<br />
Jan 31 - Feb, 2013<br />
United States / California / San Diego<br />
Contact: Bermellyn Imamura, Continuing Medical<br />
Education, UC San Diego<br />
Tel: 619-543-7602<br />
Email: ocme@ucsd.edu<br />
School Mental Health: Treating Students K - 12<br />
Feb 1 - 2, 2013<br />
United States / Massachusetts / Boston<br />
Contact: Continuing Medical Education, Harvard<br />
Medical School<br />
Tel: 617-384-8600; Fax: 617-384-8686<br />
Email: hms-cme@hms.harvard.edu<br />
3 rd World Congress of Regional Anaesthesia and Pain<br />
Therapy<br />
Feb 3 - 7, 2013<br />
Australia / Sydney<br />
Contact: Secretariat, SAPMEA<br />
Tel: 011-61-8-8274-6048; Fax: 011-61-8-8274-6000<br />
Email: wcrapt@sapmea.asn.au<br />
Mitochondria, Metabolism & Myocardial Function<br />
– Basic Advances to Translational Studies<br />
Feb 3 - 8, 2013<br />
United States / Colorado / Keystone<br />
Contact: Keystone Symposia on Molecular and Cellular<br />
Biology<br />
Tel: 800-253-0685 or 970-262-1230; Fax: 970-262-1525<br />
Email: info@keystonesymposia.<strong>org</strong><br />
New Frontiers in Neurodegenerative Disease<br />
Research<br />
Feb 3 - 8, 2013<br />
New Mexico / Santa Fe<br />
Contact: Keystone Symposia on Molecular and Cellular<br />
Biology<br />
Tel: 800-253-0685 or 970-262-1230; Fax: 970-262-1525<br />
Email: info@keystonesymposia.<strong>org</strong><br />
Head and Neck Imaging<br />
Feb 4 - 8, 2013<br />
Austria / Vienna<br />
Contact: Ines Fischer<br />
Fax: 011-43-1-40400-4898<br />
Email: ines.fischer@meduniwien.ac.at<br />
24 th International Congress on Anti-Cancer Treatment:<br />
ICACT <strong>2012</strong><br />
Feb 5 - 7, 2013<br />
France / Paris<br />
Contact: Valérie Caillon, International Medical Events<br />
(IME)<br />
Tel: 011-33-1-4743-5084; Fax: 011-33-1-4743-2226<br />
Email: valerie.caillon@im-events.com<br />
2 nd World Congress of Cutaneous Lymphomas (Wccl)<br />
Feb 6 - 9, 2013<br />
Germany / Berlin<br />
Contact: Legal Organizer (PCO), MCI Deutschland<br />
GmbH<br />
Tel: 011-49-30-204-590; Fax: 011-49-30-204-5950<br />
Email: lymphomas2013@mci-group.com
357<br />
Forthcoming Conferences and Meetings <strong>December</strong> <strong>2012</strong><br />
Infant, Child, and Adolescent Medicine<br />
Feb 6 - 9, 2013<br />
United States / Florida / Orlando<br />
Contact: American Academy of Family Physicians<br />
Tel: 800-274-2237 or 913-906-6000; Fax: 913-906-6075<br />
Operative Skills in Neonatal and Paediatric Surgery<br />
Feb 6 - 7, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
AAOS Total Ankle Arthroplasty<br />
Feb 7 - 9, 2013<br />
United States / Illinois / Rosemont<br />
Contact: Customer Service Department, American<br />
Association of Orthopaedic Surgeons<br />
Tel: 800-626-6726 (US and Canada) or 847-823-7186<br />
Email: custserv@aaos.<strong>org</strong><br />
Emirates Surgical Pathology Conference 2013<br />
Feb 7 - 9, 2013<br />
United Arab Emirates / Abu Dhabi<br />
Contact: Sujatha Kristensen, Project Co-ordinator,<br />
Meeting Minds: Experts<br />
Tel: 011-97-14-427-0492; Fax: 011-97-14-427-0493<br />
Email: pco@espc2013.com<br />
Meniscus 2 nd International Meeting<br />
Feb 7 - 9, 2013<br />
France / Versailles Orthopedics<br />
Contact: Viviane Barbarisi, MCO Congres<br />
Fax: 011-33-4-9509-3801<br />
Email: viviane.barbarisi@mcocongres.com<br />
BRONCOCON 2013: 18 th Annual Conference of Indian<br />
Association for Bronchology<br />
Feb 8 - 10, 2013<br />
India / Vadodara<br />
Contact: Dr. Anand K. Patel, Conference Secretariat,<br />
Global Meridian Hospital<br />
Tel: 011-91-98-7977-1079<br />
Email: dranandkpatel@gmail.com<br />
Toronto Cataract Course 2013<br />
Feb 9, 2013<br />
Canada / Ontario / Toronto<br />
Contact: Continuing Education and Professional<br />
Development, University of Toronto<br />
Tel: 416-978-2719<br />
Email: info-opt1301@cepdtoronto.ca<br />
Cardiology Update 2013<br />
Feb 10 - 15, 2013<br />
Switzerland / Davos<br />
Contact: Zurich Heart House<br />
Tel: 011-41-<strong>44</strong>-250-4080; Fax: 011-41-<strong>44</strong>-250-4090<br />
Email: contact@zhh.ch<br />
33 rd Annual Meeting of The Society of Maternal-Fetal<br />
Medicine (SMFM): The Pregnancy Meeting<br />
Feb 11 - 16, 2013<br />
United States / California / San Francisco<br />
Contact: SMFM<br />
Tel: 202-863-2476; Fax: 202-554-1132<br />
Transcranial Doppler Course<br />
Feb 13 - 15, 2013<br />
United States / California / Los Angeles<br />
Contact: Karen Einstein, Office of Continuing Medical<br />
Education, UC Los Angeles<br />
Tel: 310-206-0626<br />
36 th Annual Advanced Ultrasound Seminar: Ob/Gyn<br />
Feb 14 - 16, 2013<br />
United States / Florida / Lake Buena Vista<br />
Contact: American Institute of Ultrasound in<br />
Medicine<br />
Tel: 800-638-5352 or 301-498-4100<br />
Fax: 301-498-<strong>44</strong>50<br />
Email: ddelanko@aium.<strong>org</strong><br />
Sclerotherapy<br />
Feb 15 - 16, 2013<br />
United States / Tennessee / Nashville<br />
Contact: Julie Woods, Registration and Product<br />
Coordinator, National Procedures Institute<br />
Tel: 800-674-2631; Fax: 512-329-0<strong>44</strong>2<br />
Email: julie@npinstitute.com<br />
2 nd American Society For Nutrition Middle East<br />
Congress <strong>2012</strong> (ASNME 2013)<br />
Feb 20 - 22, 2013<br />
United Arab Emirates / Dubai<br />
Contact: Pure Spot Congress and Event Organizers<br />
Tel: 011-20-2-267-21<strong>44</strong><br />
Email: Info@EGYPURE.<strong>org</strong><br />
8 th International Breast Cancer Congress<br />
Feb 20 - 22 , 2013<br />
Iran / Tehran<br />
Contact: Fatemeh Keshmir, Executive Manager, Cancer<br />
Research Center Shahid Beheshti University of Medical<br />
Sciences<br />
Tel: 011-98-21-2274-8001-2; Fax: 011-98-21-2274-8001-2<br />
Email: keshmirf@yahoo.com<br />
Asian Pacific Society of Cardiology 2013<br />
Feb 21 - 24 , 2013<br />
Thailand / Pataya<br />
Contact: Pattama Thuanchaisri, Project Manager,<br />
Kenes Asia<br />
Tel: 011-66-02-748-7881; Fax: 011-66-02-748-7880<br />
Email: apscoffice2013@apsc2013.<strong>org</strong>
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 358<br />
8 th International Breast Cancer Congress<br />
Feb 22 - 24<br />
Iran / Tehran<br />
Tel: 011-98-21-2274-8001 ext. 2; Fax: 011-98-21-2274-<br />
8001 ext. 2<br />
Email: drakbari.drakbari@gmail.com<br />
Obstetric Ultrasound: Setting the Standard for 2013<br />
Feb 22 - 24, 2013<br />
Canada / Ontario / Toronto<br />
Contact: Elizabeth Gan, CME Administrative Course<br />
Director, University of Toronto<br />
Tel: 416-586-4800 ext. 2489; Fax: 416-586-5958<br />
Email: egan@mtsinai.on.ca<br />
23 rd Annual Neuroscience Conference: Brain Plasticity<br />
& Neurorehabilitation<br />
Mar 4 - 6, 2013<br />
Canada / Ontario / Toronto<br />
Contact: Paula Ferreira, Baycrest<br />
Tel: 416-785-2500 ext. 2363<br />
Email: PFerreira@baycrest.<strong>org</strong><br />
11 th International Congress on Alzheimer’s And<br />
Parkinson’s Disease<br />
Mar 6 - 10<br />
Italy / Florence<br />
Contact: Kenes International, Media and Advertising ,<br />
Kenes International<br />
Tel: 011-41-22-908-0488<br />
Fax: 011-41-22-908-9140<br />
Email: adpd@kenes.com<br />
3 rd Emirates Haematology Conference<br />
Mar 7 - 9, 2013<br />
United Arab Emirates / Dubai<br />
Contact: Bahaa Eldin Okasha, Project Manager, Meeting<br />
Minds: Experts<br />
Tel: 011-97-1-<strong>44</strong>27-0492<br />
Email: pco@ehc2013.com<br />
6 th Dubai Anaesthesia 2013<br />
Mar 7 - 9, 2013<br />
United Arab Emirates / Dubai<br />
Contact: Hana Holy, Project Manager, INDEX<br />
Conferences and Exhibitions Org. Est<br />
Tel: 011-971-4-362-4717 ext. 120; Fax: 011-971-4-362-<br />
4718<br />
Email: hana.holy@index.ae<br />
6 th International Conference on Ocular Infections<br />
(ICOI)<br />
Mar 7 - 10, 2013<br />
United States / California / Santa Monica<br />
Contact: Shirley Dinenson, Conference secretariat,<br />
Paragon Conventions<br />
Tel: 011-41-22-533-0948; Fax: 011-41-22-580-2953<br />
Email: sdinenson@paragon-conventions.com<br />
International Conference on Cerebral Palsy &<br />
Developmental Medicine<br />
Mar 8 - 10, 2013<br />
India / Lucknow<br />
Contact: R. P. Shah Memorial Trust for Children with<br />
Disabilities<br />
Tel: 011-91-930-554-2233<br />
Vascular Ultrasound Course<br />
Mar 12 - 13, 2013<br />
United Kingdom / Birmingham<br />
Contact: Secretariat, Wessex Scientific<br />
Fax: 011-<strong>44</strong>-13-8435-0132<br />
Email: info@wessexscientific.com<br />
7 th International Dip Symposium on Diabetes,<br />
Hypertension, Metabolic Syndrome & Pregnancy<br />
Mar 14 - 16, 2013<br />
Italy / Florence<br />
Contact: Kenes International, Kenes International<br />
Tel: 011-41-22-908-0488; Fax: 011-41-22-906-9140<br />
Email: dip@kenes.com<br />
Essentials of Bronchoscopy<br />
Mar 14 - 15, 2013<br />
United States / Illinois / Northbrook<br />
Contact: American College of Chest Physicians<br />
Tel: 847-498-1400; Fax: 847-498-5460<br />
Neurology/Psychiatry for Primary Care Physicians<br />
Mar 15 - 17, 2013<br />
United States / Nevada / Las Vegas<br />
Contact: Medical Education Resources<br />
Tel: 303-798-9682; Fax: 303-798-5731<br />
Email: info@mer.<strong>org</strong><br />
Oncology<br />
Mar 15, 2013<br />
United Kingdom / Edinburgh<br />
Contact: Eileen Strawn, Symposium Co-ordinator,<br />
Royal College of Physicians of Edinburgh<br />
Tel: 011-<strong>44</strong>-13-1247-3619; Fax: 011-<strong>44</strong>-13-1220-4393<br />
Email: e.strawn@rcpe.ac.uk<br />
Endobronchial Ultrasound<br />
Mar 16 - 17, 2013<br />
United States / Illinois / Northbrook<br />
Contact: American College of Chest Physicians<br />
Tel: 847-498-1400; Fax: 847-498-5460<br />
Interdisciplinary Prostate Cancer Congress<br />
Mar 16, 2013<br />
United States / New York / New York<br />
Contact: Physicians’ Education Resource<br />
Tel: 609-451-0258; Fax: 609-257-0705<br />
Email: info@gotoper.com
359<br />
Forthcoming Conferences and Meetings <strong>December</strong> <strong>2012</strong><br />
2013 Neonatal Ultrasound Course. Why, How and<br />
When an Ultrasound Image?<br />
Mar 18 - 21, 2013<br />
Italy / Florence<br />
Contact: Organizing Secretariat, AIM Group<br />
International<br />
Tel: 011-39-55-23-388 ext.1; Fax: 011-39-55-248-0246<br />
Email: ultrasound2013@aimgroup.eu<br />
Epidemiology & Prevention | Nutrition, Physical<br />
Activity & Metabolism 2013 Scientific Sessions<br />
Mar 19 - 22, 2013<br />
United States / Louisiana / New Orleans<br />
Contact: American Heart Association<br />
Tel: 888-242-2453 or 214-570-5935<br />
Email: scientificconferences@heart.<strong>org</strong><br />
Specialty Skills in Coloproctology Stage 1 (ST3-5)<br />
Mar 19 - 20, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
Website: http://www.rcseng.ac.uk/courses/coursesearch/colorectal-surgery-stage-i<br />
11 th European Meeting on Hiv & Hepatitis: Treatment<br />
Strategies & Antiviral Drug Resistance<br />
Mar 20 - 22, 2013<br />
Italy / Rome<br />
Contact: Wilco Keulen, Virology Education B.V.<br />
Tel: 011-31-30-230-7140; Fax: 011-31-30-230-7148<br />
Email: wilco.keulen@vironet.com<br />
CIT 2013: China Interventional Therapeutics<br />
Mar 20 - 23<br />
China / Beijing<br />
Contact: Lifeng Dai, International Registration, Chinese<br />
Medical Association<br />
Tel: 011-86-10-8515-8473<br />
Email: lfdai@citmd.com<br />
Monitoring of Airway Diseases<br />
Mar 21 - 23, 2013<br />
Belgium / Liege<br />
Contact: European Respiratory Society<br />
Fax: 011-41-21-213-0100<br />
Email: school@ersnet.<strong>org</strong><br />
Specialty Skills in Coloproctology Stage 2 (St6-8)<br />
Mar 21 - 22, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
21 st National Association for Study of the Liver<br />
Mar 22 - 24, 2013<br />
India / Hyderabad<br />
Contact: Ritu Saigal, APM, Kenes India<br />
Tel: 011-91-11-4519-9100; Fax: 011-91-11-2551-3052<br />
Email: inasl2013@gmail.com<br />
Adult Infectious Diseases: Evidence Based Primary<br />
Prevention and Treatment<br />
Mar 25 - 27, 2013<br />
United States / California / Anaheim<br />
Contact: Orly Light, Director of MCE Conferences,<br />
MCE Conferences<br />
Tel: 888-533-9031; Fax: 858-777-5588<br />
Email: info@mceconferences.com<br />
Thyroid and Parathyroid Masterclass<br />
Mar 25, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
17 th Pan Arab Conference on Diabetes<br />
Mar 26 - 29, 2013<br />
Egypt / Cairo<br />
Contact: Conference Secretariat, Pure Spot Congress<br />
and Event Organizers<br />
Tel: 011-20-2-2672-19<strong>44</strong>; Fax: 011-20-2-2671-8421<br />
Email: pure@onlinediabetes.net<br />
Head and Neck Surgical Anatomy: ‘Hands On’<br />
Cadaver Workshop<br />
Mar 26, 2013<br />
United Kingdom / York<br />
Contact: Hull York Medical School<br />
Email: postgraduate@hyms.ac.uk<br />
7 th Middle East Cardiovascular Conference: MECC<br />
2013<br />
Mar 30 - Apr 2, 2013<br />
Turkey / Istanbul<br />
Website: http://www.mecc.ir/<br />
Nuclear Receptors & Friends: Roles in Energy<br />
Homeostasis & Metabolic Dysfunction<br />
Apr 3 - 8, 2013<br />
Austria / Alpbach<br />
Contact: Keystone Symposia on Molecular and Cellular<br />
Biology<br />
Tel: 800-253-0685 or 970-262-1230; Fax: 970-262-1525<br />
Email: info@keystonesymposia.<strong>org</strong><br />
Specialty Skills in Oncoplastic and Breast<br />
Reconstruction Surgery Level I<br />
Apr 3 - 4, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 360<br />
Controversies in Rheumatology & Autoimmunity<br />
2013<br />
Apr 4 - 6, 2013<br />
Hungary / Budapest<br />
Contact: Ronit Eisenbach, APM, Kenes International<br />
Tel: 011-41-22-908-0488; Fax: 011-41-22-906-9140<br />
Email: cora@kenes.com<br />
Society for Emergency Medicine In Singapore Annual<br />
Scientific Meeting 2013<br />
Apr 6 - 7, 2013<br />
Singapore / Singapore<br />
Contact: SEMS ASM 2013 , Society for Emergency<br />
Medicine in Singapore<br />
Email: semsasm2013@gmail.com<br />
Intermediate Skills In Laparoscopic Surgery<br />
Apr 9 - 10, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
7 th World Congress on Controversies in Neurology<br />
(CONY)<br />
Apr 11 - 14, 2013<br />
Turkey / Istanbul<br />
Contact: Congress Secretariat, ComtecMED<br />
Tel: 011-972-3-566-6166; Fax: 011-972-3-566-6177<br />
Email: cony@comtecmed.com<br />
Advances in Diabetes and Insulin Therapy - Adit 2013<br />
Apr 11 - 14, 2013<br />
Bulgaria / Sofia<br />
Contact: Rok Bolcina, Registration and Housing<br />
Manager, POTNIK d.o.o.<br />
Email: info@adit-conf.<strong>org</strong><br />
22 nd Biennial Congress of the South African<br />
Arthroplasty Society<br />
Apr 17 - 20, 2013<br />
South Africa / Winterton<br />
Contact: Congress Secretariat, ICE Solution<br />
Tel: 011-27-11-911-1921;Fax: 011-27-11-911-1939<br />
Email: tracey@icesolution.co.za<br />
Annual Paediatric Update Conference 2013: Operative<br />
Skills In Neurosurgery<br />
Apr 17 - 19, 2013<br />
United Kingdom / London<br />
Contact: Royal College of Surgeons of England<br />
Tel: 011-<strong>44</strong>-20-7869-6300<br />
Email: education@rcseng.ac.uk<br />
2013 World Congress on Osteoarthritis<br />
Apr 18 - 21, 2013<br />
United States / Pennsylvania / Philadelphia<br />
Contact: Annemarie Kehler, Meeting & Registration<br />
Coordinator, Osteoarthritis Research Society<br />
International<br />
Tel: 856-642-<strong>44</strong>29; Fax: 856-439-0525<br />
Email: akehler@oarsi.<strong>org</strong><br />
5 th Pan Arab Congress of Sexual Health<br />
Apr 18 - 20, 2013<br />
United Arab Emirates / Dubai<br />
Contact: Adel Zakaria, Congress Organizer, Charisma<br />
Travel<br />
Tel: 011-21-2-2216-3858; Fax: 011-20-2-2418-4645<br />
Email: mohamedtarekanis@gmail.com<br />
Comprehensive Colposcopy<br />
Apr 18 - 21, 2013<br />
United States / Ge<strong>org</strong>ia / Atlanta<br />
Contact: American Society for Colposcopy and Cervical<br />
Pathology<br />
Tel: 301-733-3640; Fax: 301-733-5775<br />
Update in General Surgery 2013<br />
Apr 18 - 20, 2013<br />
Ontario / Toronto<br />
Contact: Continuing Education and Professional<br />
Development, University of Toronto<br />
Tel: 416-978-2719<br />
Email: info-sur1304@cepdtoronto.ca<br />
Emergency Radiology in Burgundy<br />
Apr 20 - 26, 2013<br />
France / Beaune<br />
Contact: Joanne Porter, Joint Department of Medical<br />
Imaging, University of Toronto<br />
Tel: 416-340-4800 ext. 8921; Fax: 416-340-3900<br />
Email: joanne.porter@uhn.ca<br />
International Society for Neurochemistry / American<br />
Society for Neurochemistry 2013 Meeting<br />
Apr 20 - 24, 2013<br />
Mexico / Cancun<br />
Contact: Sheilah Jewart, ISN-ASN Cancun 2013<br />
Email: SJewart@isn-asncancun2013.<strong>org</strong><br />
Musculoskeletal Ultrasound Course for<br />
Rheumatologists - Fundamentals<br />
Apr 20 - 21, 2013<br />
United States / Illinois / Chicago<br />
Contact: American College of Rheumatology<br />
Tel: 800-636-4766 (US & Canada) or 415-979-2265; Fax:<br />
415-293-5231<br />
Email: ACRProfMtgs@cmrus.com
361<br />
Forthcoming Conferences and Meetings <strong>December</strong> <strong>2012</strong><br />
Nephrology 2013<br />
Apr 21 - 26, 2013<br />
United States / Massachusetts / Boston<br />
Contact: Harvard Medical School, Department of<br />
Continuing Education, Agri Meetings<br />
Tel: 617-384-8600<br />
Email: hms-cme@hms.harvard.edu<br />
14 th International Workshop on Clinical Pharmacology<br />
of HIV Therapy<br />
Apr 22 - 24, 2013<br />
United Kingdom / Liverpool<br />
Contact: Wilco Keulen, Virology Education B.V<br />
Tel: 011-31-30-230-7140; Fax: 011-31-30-230-7148<br />
Email: wilco.keulen@vironet.com<br />
1 st International Pediatric Psycho-Oncology Workshop<br />
Apr 22 - 25, 2013<br />
Egypt / Cairo<br />
Contact: Dr. Mohammad ElShami, Director of the<br />
psychiatric department, Children Cancer Hospital<br />
Egypt 57357<br />
Tel: 011-20-2-2535-1500<br />
Email: mohammad.elshami@57357.com<br />
Hot Topics In Anesthesia + ACLS + NRP + PALS<br />
Apr 22 - 25, 2013<br />
United States / Nevada / Las Vegas<br />
Contact: Northwest Anesthesia Seminars, Inc.<br />
Tel: 509-547-7065; Fax: 509-547-1265<br />
Email: info@nwas.com<br />
Malaria Vaccines for the World<br />
Apr 22 - 24, 2013<br />
Switzerland / Lausann<br />
Contact: John Herriot, Meetings Management<br />
Tel: 011-<strong>44</strong>-1483-427-<strong>44</strong>0; Fax: 011-<strong>44</strong>-1483-428-516<br />
Email: jherriot@meetingsmgmt.u-net.com<br />
Angioplasty Summit TCTAP 2013<br />
Apr 23 - 26, 2013<br />
South Korea / Seoul<br />
Contact: Harim Jin, Summit MD<br />
Email: cvrf@summitmd.com<br />
34 th Annual Advances in Infectious Diseases: New<br />
Directions for Primary Care<br />
Apr 24 - 26, 2013<br />
United States / California / San Francisco<br />
Contact: Office of Continuing Medical Education,<br />
UCSF CME Registration Office<br />
Tel: 415-476-5808; Fax: 415-502-1795<br />
Email: info@ocme.ucsf.edu<br />
International Society for Heart & Lung Transplantation<br />
(ISHLT) 33rd Annual Meeting & Scientific Sessions<br />
Apr 24 - 27, 2013<br />
Canada, Quebec / Montreal<br />
Contact: ISHLT<br />
Tel: 972-490-9495; Fax: 972-490-9499<br />
Email: meetings@ishlt.<strong>org</strong><br />
8 th International Congress on Vascular Access<br />
Apr 25 - 27, 2013<br />
Czech Republic / Prague<br />
Contact: Congress Secretariat, GUARANT<br />
International<br />
Tel: 011-420-284-001-<strong>44</strong>4; Fax: 011-420-284-001-<strong>44</strong>8<br />
Bit’s 4 th Annual World DNA and Genome Day (WDD-<br />
2013)<br />
Apr 25 - 27, 2013<br />
China / Nanjing<br />
Contact: Jessica Tong , WDD-2013, BIT Congress, Inc.<br />
Tel: 011-86-411-8479-9609 ext. 801; Fax: 011-86-411-<br />
8479-9629<br />
Email: Jessica@dnaday.com<br />
Geriatric Medicine<br />
Apr 25 - 27, 2013<br />
New Mexico / Albuquerque<br />
Contact: American Academy of Family Physicians<br />
Tel: 800-274-2237 or 913-906-6000; Fax: 913-906-6075<br />
43 rd Annual Aesthetic Plastic Surgery Symposium<br />
2013<br />
Apr 26 - 27<br />
Canada, Ontario / Toronto<br />
Contact: Continuing Education and Professional<br />
Development, University of Toronto<br />
Tel: 416-978-2719<br />
Email: info.cepd@utoronto.ca<br />
23 rd European Congress of Clinical Microbiology And<br />
Infectious Diseases<br />
Apr 27 - 30, 2013<br />
Germany / Berlin<br />
Contact: Congrex Switzerland Ltd.<br />
Tel: 011-41-61-686-7777; Fax: 011-41-61-686-7788<br />
Email: basel@congrex.com<br />
5 th International Conference: Advances in Orthopaedic<br />
Osseointegration<br />
May 1 - 31, 2013<br />
Sweden / Gothenburg Orthopedics<br />
Contact: , Office of Continuing Medical Education,<br />
UCSF CME Registration Office<br />
Tel: 415-476-5808; Fax: 415-502-1795<br />
Email: info@ocme.ucsf.edu
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 362<br />
WHO-Facts Sheet<br />
1. Diabetes<br />
2. Epilepsy<br />
3. Maternal Mortality<br />
4. Diarrheal Disease<br />
Compiled and edited by<br />
Babichan K Chandy<br />
Kuwait Medical Journal <strong>2012</strong>, <strong>44</strong> (4): 362 - 367<br />
1. DIABETES<br />
What is diabetes?<br />
Diabetes is a chronic disease that occurs either<br />
when the pancreas does not produce enough insulin<br />
or when the body cannot effectively use the insulin it<br />
produces. Insulin is a hormone that regulates blood<br />
sugar. Hyperglycaemia, or raised blood sugar, is a<br />
common effect of uncontrolled diabetes and over time<br />
leads to serious damage to many of the body’s systems,<br />
especially the nerves and blood vessels.<br />
KEY FACTS<br />
• 346 million people worldwide have diabetes.<br />
• In 2004, an estimated 3.4 million people died from<br />
consequences of high blood sugar.<br />
• More than 80% of diabetes deaths occur in low- and<br />
middle-income countries.<br />
• WHO projects that diabetes deaths will double<br />
between 2005 and 2030.<br />
• Healthy diet, regular physical activity, maintaining<br />
a normal body weight and avoiding tobacco use<br />
can prevent or delay the onset of type 2 diabetes.<br />
Type 1 diabetes<br />
Type 1 diabetes (previously known as insulindependent,<br />
juvenile or childhood-onset) is<br />
characterized by deficient insulin production and<br />
requires daily administration of insulin. The cause of<br />
type 1 diabetes is not known and it is not preventable<br />
with current knowledge.<br />
Symptoms include excessive excretion of urine<br />
(polyuria), thirst (polydipsia), constant hunger, weight<br />
loss, vision changes and fatigue. These symptoms may<br />
occur suddenly.<br />
Type 2 diabetes<br />
Type 2 diabetes (formerly called non-insulindependent<br />
or adult-onset) results from the body’s<br />
ineffective use of insulin. Type 2 diabetes comprises<br />
90% of people with diabetes around the world, and is<br />
largely the result of excess body weight and physical<br />
inactivity.<br />
Symptoms may be similar to those of Type 1<br />
diabetes, but are often less marked. As a result, the<br />
disease may be diagnosed several years after onset,<br />
once complications have already arisen.<br />
Until recently, this type of diabetes was seen only in<br />
adults, but it is now also occurring in children.<br />
Gestational diabetes<br />
Gestational diabetes is hyperglycaemia with onset<br />
or first recognition during pregnancy.<br />
Symptoms of gestational diabetes are similar to<br />
Type 2 diabetes. Gestational diabetes is most often<br />
diagnosed through prenatal screening, rather than<br />
reported symptoms.<br />
Impaired glucose tolerance (IGT) and impaired<br />
fasting glycaemia (IFG)<br />
Impaired glucose tolerance (IGT) and impaired<br />
fasting glycaemia (IFG) are intermediate conditions in<br />
the transition between normality and diabetes. People<br />
with IGT or IFG are at high risk of progressing to type<br />
2 diabetes, although this is not inevitable.<br />
What are common consequences of diabetes?<br />
Over time, diabetes can damage the heart, blood<br />
vessels, eyes, kidneys, and nerves.<br />
• Diabetes increases the risk of heart disease<br />
and stroke. 50% of people with diabetes die of<br />
cardiovascular disease (primarily heart disease and<br />
stroke).<br />
• Combined with reduced blood flow, neuropathy<br />
in the feet increases the chance of foot ulcers and<br />
eventual limb amputation.<br />
Address correspondence to:<br />
Office of the Spokesperson, WHO, Geneva. Tel.: (+41 22) 791 2599; Fax (+41 22) 791 4858; Email: inf@who.int; Web site: http://www.who.int/
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• Diabetic retinopathy is an important cause of<br />
blindness, and occurs as a result of long-term<br />
accumulated damage to the small blood vessels in<br />
the retina. After 15 years of diabetes, approximately<br />
2% of people become blind, and about 10% develop<br />
severe visual impairment.<br />
• Diabetes is among the leading causes of kidney<br />
failure. 10-20% of people with diabetes die of<br />
kidney failure.<br />
• Diabetic neuropathy is damage to the nerves as a<br />
result of diabetes, and affects up to 50% of people<br />
with diabetes. Although many different problems<br />
can occur as a result of diabetic neuropathy,<br />
common symptoms are tingling, pain, numbness,<br />
or weakness in the feet and hands.<br />
• The overall risk of dying among people with<br />
diabetes is at least double the risk of their peers<br />
without diabetes.<br />
What is the economic impact of diabetes?<br />
Diabetes and its complications have a significant<br />
economic impact on individuals, families, health<br />
systems and countries.<br />
How can the burden of diabetes be reduced?<br />
Prevention<br />
Simple lifestyle measures have been shown to be<br />
effective in preventing or delaying the onset of type<br />
2 diabetes. To help prevent type 2 diabetes and its<br />
complications, people should:<br />
• achieve and maintain healthy body weight;<br />
• be physically active – at least 30 minutes of regular,<br />
moderate-intensity activity on most days. More<br />
activity is required for weight control;<br />
• eat a healthy diet of between three and five servings<br />
of fruit and vegetables a day and reduce sugar and<br />
saturated fats intake;<br />
• avoid tobacco use – smoking increases the risk of<br />
cardiovascular diseases.<br />
Diagnosis and treatment<br />
Early diagnosis can be accomplished through<br />
relatively inexpensive blood testing.<br />
Treatment of diabetes involves lowering blood<br />
glucose and the levels of other known risk factors that<br />
damage blood vessels. Tobacco use cessation is also<br />
important to avoid complications.<br />
Interventions that are both cost saving and feasible<br />
in developing countries include:<br />
• moderate blood glucose control. People with type 1<br />
diabetes require insulin; people with type 2 diabetes<br />
can be treated with oral medication, but may also<br />
require insulin;<br />
• blood pressure control<br />
• foot care<br />
Other cost saving interventions include:<br />
• screening and treatment for retinopathy (which<br />
causes blindness)<br />
• blood lipid control (to regulate cholesterol levels)<br />
• screening for early signs of diabetes-related kidney<br />
disease.<br />
These measures should be supported by a healthy<br />
diet, regular physical activity, maintaining a normal<br />
body weight and avoiding tobacco use.<br />
For more information, please contact:<br />
WHO Media centre, Telephone: +41 22 791 2222. E-<br />
mail: mediainquiries@who.int<br />
2. EPILEPSY<br />
What is epilepsy?<br />
Epilepsy is a chronic disorder of the brain that affects<br />
people in every country of the world. It is characterized<br />
by recurrent seizures. Seizures are brief episodes of<br />
involuntary shaking which may involve a part of the<br />
body (partial) or the entire body (generalized) and<br />
sometimes accompanied by loss of consciousness and<br />
control of bowel or bladder function. The episodes are a<br />
result of excessive electrical discharges in a group of brain<br />
cells. Different parts of the brain can be the site of such<br />
discharges. Seizures can vary from the briefest lapses<br />
of attention or muscle jerks, to severe and prolonged<br />
convulsions. Seizures can also vary in frequency, from<br />
less than one per year to several per day.<br />
One seizure does not signal epilepsy (up to<br />
10% of people worldwide have one seizure during<br />
their lifetimes). Epilepsy is defined by two or more<br />
unprovoked seizures. Epilepsy is one of the world’s<br />
oldest recognized conditions. Fear, misunderstanding,<br />
discrimination and social stigma have surrounded<br />
epilepsy for centuries. Some of the stigma continues<br />
today in many countries and can impact the quality of<br />
life for people with the disorder and their families.<br />
KEY FACTS<br />
• Epilepsy is a chronic noncommunicable disorder of<br />
the brain that affects people of all ages<br />
• Around 50 million people worldwide have<br />
epilepsy<br />
• Nearly 80% of the people with epilepsy are found<br />
in developing regions.<br />
• Epilepsy responds to treatment about 70% of the<br />
time, yet about three fourths of affected people in<br />
developing countries do not get the treatment they<br />
need.<br />
• People with epilepsy and their families can suffer<br />
from stigma and discrimination in many parts of<br />
the world
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Signs and symptoms<br />
Characteristics of seizures vary and depend on<br />
where in the brain the disturbance first starts, and how<br />
far it spreads. Temporary symptoms can occur, such as<br />
loss of awareness or consciousness, and disturbances<br />
of movement, sensation (including vision, hearing and<br />
taste), mood or mental function.<br />
People with seizures tend to have more physical<br />
problems (such as fractures and bruising), as well as<br />
higher rates of other diseases or psychosocial issues<br />
and conditions like anxiety and depression.<br />
Rates of disease<br />
The estimated proportion of the general population<br />
with active epilepsy (i.e. continuing seizures or the<br />
need for treatment) at a given time is between 4 - 10<br />
per 1000 people. However, some studies in developing<br />
countries suggest that the proportion is between 6 - 10<br />
per 1000. Around 50 million people in the world have<br />
epilepsy.<br />
In developed countries, annual new cases are<br />
between 40 to 70 per 100,000 people in the general<br />
population. In developing countries, this figure is<br />
often close to twice as high due to the higher risk of<br />
experiencing conditions that can lead to permanent<br />
brain damage. Close to 80% of epilepsy cases worldwide<br />
are found in developing regions. The risk of premature<br />
death in people with epilepsy is two to three times<br />
higher than it is for the general population.<br />
Causes<br />
The most common type – for six out of ten people<br />
with the disorder – is called idiopathic epilepsy and<br />
has no identifiable cause. In many cases, there is an<br />
underlying genetic basis.<br />
Epilepsy with a known cause is called secondary<br />
epilepsy, or symptomatic epilepsy. The causes of<br />
secondary (or symptomatic) epilepsy could be:<br />
• brain damage from prenatal or perinatal injuries<br />
(a loss of oxygen or trauma during birth, low birth<br />
weight)<br />
• congenital abnormalities or genetic conditions with<br />
associated brain malformations<br />
• a severe blow to the head<br />
• a stroke that starves the brain of oxygen<br />
• an infection of the brain such as meningitis,<br />
encephalitis, neurocysticercosis<br />
• certain genetic syndromes<br />
• a brain tumor<br />
Treatment<br />
Recent studies in both developed and developing<br />
countries have shown that up to 70% of newly<br />
diagnosed children and adults with epilepsy can be<br />
successfully treated (i.e. their seizures completely<br />
controlled) with anti-epileptic drugs (AEDs). After<br />
two to five years of successful treatment, drugs can be<br />
withdrawn in about 70% of children and 60% of adults<br />
without relapses.<br />
• In developing countries, three fourths of people<br />
with epilepsy may not receive the treatment they<br />
need.<br />
• About 9 out of 10 people with epilepsy in Africa go<br />
untreated.<br />
• In many low- and middle-income countries, there<br />
is low availability and AEDs are not affordable and<br />
this may act as a barrier to accessing treatment.<br />
A recent study found the average availability of<br />
generic antiepileptic medicines in the public sector<br />
to be less than 50%.<br />
• Surgical therapy might be beneficial to patients<br />
who respond poorly to drug treatments.<br />
Prevention<br />
Idiopathic epilepsy is not preventable. However,<br />
preventive measures can be applied to the known<br />
causes of secondary epilepsy.<br />
• Preventing head injury is the most effective way to<br />
prevent post-traumatic epilepsy.<br />
• Adequate perinatal care can reduce new cases of<br />
epilepsy caused by birth injury.<br />
• The use of drugs and other methods to lower the<br />
body temperature of a feverish child can reduce the<br />
chance of subsequent convulsions.<br />
• Central nervous system infections are common<br />
causes of epilepsy in tropical areas, where many<br />
developing countries are concentrated. Elimination<br />
of parasites in these environments and education<br />
on how to avoid infections would be effective ways<br />
to reduce epilepsy worldwide, for example due to<br />
neurocysticercosis.<br />
Social and ecomomic impacts<br />
Epilepsy accounts for 0.5% of the global burden of<br />
disease, a time-based measure that combines years of<br />
life lost due to premature mortality and time lived in<br />
states of less than full health. Epilepsy has significant<br />
economic implications in terms of health-care needs,<br />
premature death and lost work productivity. An Indian<br />
study calculated that the total cost per epilepsy case<br />
was US$ 3<strong>44</strong> per year (or 88% of the average income<br />
per capita). The total cost for an estimated five million<br />
cases in India was equivalent to 0.5% of gross national<br />
product.<br />
Although the social effects vary from country to<br />
country, the discrimination and social stigma that<br />
surround epilepsy worldwide are often more difficult<br />
to overcome than the seizures themselves. People<br />
with epilepsy can be targets of prejudice. The stigma<br />
of the disorder can discourage people from seeking<br />
treatment for symptoms and becoming identified with<br />
the disorder.
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WHO-Facts Sheet <strong>December</strong> <strong>2012</strong><br />
Human rights<br />
People with epilepsy experience reduced access<br />
to health and life insurance, a withholding of the<br />
opportunity to obtain a driving license, and barriers to<br />
enter particular occupations, among other limitations.<br />
In many countries, legislation reflects centuries of<br />
misunderstanding about epilepsy. For example:<br />
• In both China and India, epilepsy is commonly<br />
viewed as a reason for prohibiting or annulling<br />
marriages.<br />
• In the United Kingdom, a law forbidding people<br />
with epilepsy to marry was repealed only in 1970.<br />
• In the United States, until the 1970s, it was legal to<br />
deny people with seizures access to restaurants,<br />
theatres, recreational centres and other public<br />
buildings.<br />
Legislation based on internationally accepted<br />
human rights standards can prevent discrimination<br />
and rights violations, improve access to health care<br />
services and raise quality of life.<br />
3. MATERNAL MORTALITY<br />
Maternal mortality is unacceptably high. About<br />
800 women die from pregnancy- or childbirth-related<br />
complications around the world every day. In 2010,<br />
287,000 women died during and following pregnancy<br />
and childbirth. Almost all of these deaths occurred<br />
in low-resource settings, and most could have been<br />
prevented.<br />
KEY FACTS<br />
• Every day, approximately 800 women die from<br />
preventable causes related to pregnancy and<br />
childbirth.<br />
• 99% of all maternal deaths occur in developing<br />
countries.<br />
• Maternal mortality is higher in women living in<br />
rural areas and among poorer communities.<br />
• Young adolescents face a higher risk of<br />
complications and death as a result of pregnancy<br />
than older women.<br />
• Skilled care before, during and after childbirth can<br />
save the lives of women and newborn babies.<br />
• Between 1990 and 2010, maternal mortality<br />
worldwide dropped by almost 50%<br />
Progress towards achieving the fifth Millennium<br />
Development Goal<br />
Improving maternal health is one of the eight<br />
Millennium Development Goals (MDGs) adopted by<br />
the international community in 2000. Under MDG5,<br />
countries committed to reducing maternal mortality<br />
by three quarters between 1990 and 2015. Since 1990,<br />
maternal deaths worldwide have dropped by 47%.<br />
In sub-Saharan Africa, a number of countries have<br />
halved their levels of maternal mortality since 1990. In<br />
other regions, including Asia and North Africa, even<br />
greater headway has been made. However, between<br />
1990 and 2010, the global maternal mortality ratio (i.e.<br />
the number of maternal deaths per 100, 000 live births)<br />
declined by only 3.1% per year. This is far from the<br />
annual decline of 5.5% required to achieve MDG5.<br />
Where do maternal deaths occur?<br />
The high number of maternal deaths in some areas<br />
of the world reflects inequities in access to health<br />
services, and highlights the gap between rich and poor.<br />
Almost all maternal deaths (99%) occur in developing<br />
countries. More than half of these deaths occur in sub-<br />
Saharan Africa and almost one third occur in South<br />
Asia.<br />
The maternal mortality ratio in developing countries<br />
is 240 per 100,000 births versus 16 per 100,000 in<br />
developed countries. There are large disparities between<br />
countries, with few countries having extremely high<br />
maternal mortality ratios of 1000 or more per 100, 000 live<br />
births. There are also large disparities within countries,<br />
between people with high and low income and between<br />
people living in rural and urban areas.<br />
The risk of maternal mortality is highest for<br />
adolescent girls under 15 years old. Complications in<br />
pregnancy and childbirth are the leading cause of death<br />
among adolescent girls in most developing countries.<br />
Women in developing countries have on average<br />
many more pregnancies than women in developed<br />
countries, and their lifetime risk of death due to<br />
pregnancy is higher. A woman’s lifetime risk of<br />
maternal death – the probability that a 15 year old<br />
woman will eventually die from a maternal cause – is<br />
one in 3800 in developed countries, versus one in 150<br />
in developing countries.<br />
Why do women die?<br />
Women die as a result of complications during<br />
and following pregnancy and childbirth. Most of<br />
these complications develop during pregnancy. Other<br />
complications may exist before pregnancy but are<br />
worsened during pregnancy. The major complications<br />
that account for 80% of all maternal deaths are:<br />
• severe bleeding (mostly bleeding after childbirth)<br />
• infections (usually after childbirth)<br />
• high blood pressure during pregnancy (preeclampsia<br />
and eclampsia)<br />
• unsafe abortion.<br />
The remainder are caused by or associated with<br />
diseases such as malaria, and AIDS during pregnancy.<br />
Maternal health and newborn health are closely
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KUWAIT MEDICAL JOURNAL 366<br />
linked. More than three million newborn babies die<br />
every year, and an additional 2.6 million babies are<br />
stillborn.<br />
How can women’s lives be saved?<br />
Most maternal deaths are avoidable, as the healthcare<br />
solutions to prevent or manage complications are<br />
well known. All women need access to antenatal care in<br />
pregnancy, skilled care during childbirth, and care and<br />
support in the weeks after childbirth. It is particularly<br />
important that all births are attended by skilled health<br />
professionals, as timely management and treatment<br />
can make the difference between life and death.<br />
Severe bleeding after birth can kill a healthy woman<br />
within two hours if she is unattended. Injecting oxytocin<br />
immediately after childbirth effectively reduces the<br />
risk of bleeding.<br />
Infection after childbirth can be eliminated, if good<br />
hygiene is practiced, and if, early signs of infection are<br />
recognized and treated in a timely manner.<br />
Pre-eclampsia should be detected and appropriately<br />
managed before the onset of convulsions (eclampsia)<br />
and other life-threatening complications. Administering<br />
drugs such as magnesium sulfate for pre-eclampsia<br />
can lower a woman’s risk of developing eclampsia.<br />
To avoid maternal deaths, it is also vital to prevent<br />
unwanted and too-early pregnancies. All women,<br />
including adolescents, need access to family planning,<br />
safe abortion services to the full extent of the law, and<br />
quality post-abortion care.<br />
Why do women not get the care they need?<br />
Poor women in remote areas are the least likely to<br />
receive adequate health care. While levels of antenatal<br />
care have increased in many parts of the world during<br />
the past decade, only 46% of women in low-income<br />
countries benefit from skilled care during childbirth.<br />
This means that millions of births are not assisted by<br />
a midwife, a doctor or a trained nurse. In high-income<br />
countries, virtually all women have at least four<br />
antenatal care visits, are attended by a skilled health<br />
worker during childbirth and receive postpartum<br />
care. In low-income countries, just over a third of<br />
all pregnant women have the recommended four<br />
antenatal care visits.<br />
Other factors that prevent women from receiving<br />
or seeking care during pregnancy and childbirth are:<br />
• poverty<br />
• distance<br />
• lack of information<br />
• inadequate services and<br />
• cultural practices.<br />
To improve maternal health, barriers that limit<br />
access to quality maternal health services must be<br />
identified and addressed at all levels of the health<br />
system.<br />
For more information contact:<br />
WHO Media centre. Telephone: +41 22 791 2222. E-mail:<br />
mediainquiries@who.int<br />
4. DIARRHEAL DISEASE<br />
Definition<br />
Diarrhea is defined as the passage of three or<br />
more loose or liquid stools per day (or more frequent<br />
passage than is normal for the individual). Frequent<br />
passing of formed stools is not Diarrhea, nor is the<br />
passing of loose, “pasty” stools by breastfed babies.<br />
Diarrhea is usually a symptom of an infection in the<br />
intestinal tract, which can be caused by a variety of<br />
bacterial, viral and parasitic <strong>org</strong>anisms. Infection is<br />
spread through contaminated food or drinking-water,<br />
or from person-to-person as a result of poor hygiene.<br />
Diarrheal disease is treatable with a solution of clean<br />
water, sugar and salt, and with zinc tablets.<br />
Diarrheal disease is the second leading cause<br />
of death in children under five years old, and is<br />
responsible for killing 1.5 million children every year.<br />
Diarrhea can last several days, and can leave the body<br />
without the water and salts that are necessary for<br />
survival. Most people who die from Diarrhea actually<br />
die from severe dehydration and fluid loss. Children<br />
who are malnourished or have impaired immunity are<br />
most at risk of life-threatening diarrhea.<br />
KEY FACTS<br />
• Diarrheal disease is the second leading cause of<br />
death in children under five years old. It is both<br />
preventable and treatable.<br />
• Diarrheal disease kills 1.5 million children every<br />
year.<br />
• Globally, there are about two billion cases of<br />
Diarrheal disease every year.<br />
• Diarrheal disease mainly affects children under<br />
two years old.<br />
• Diarrhea is a leading cause of malnutrition in<br />
children under five years old.<br />
There are three clinical types of Diarrhea:<br />
- acute watery Diarrhea – lasts several hours or<br />
days, and includes cholera;<br />
- acute bloody Diarrhea – also called dysentery;<br />
and<br />
- persistent Diarrhea – lasts 14 days or longer.<br />
Scope of Diarrheal disease<br />
Every year, there are about two billion cases of<br />
Diarrheal disease worldwide. Diarrheal disease is a<br />
leading cause of child mortality and morbidity in the<br />
world, and mostly results from contaminated food and<br />
water sources. Worldwide, around 1 billion people<br />
lack access to improved water and 2.5 billion have no
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WHO-Facts Sheet <strong>December</strong> <strong>2012</strong><br />
access to basic sanitation. Diarrhea due to infection is<br />
widespread throughout developing countries.<br />
In 2004, Diarrheal disease was the third leading<br />
cause of death in low-income countries, causing 6.9%<br />
of deaths overall. In children under five years old,<br />
Diarrheal disease is the second leading cause of death<br />
– second only to pneumonia. Out of the 1.5 million<br />
children killed by Diarrheal disease in 2004, 80% were<br />
under two years old.<br />
In developing countries, children under three years<br />
old experience on average three episodes of Diarrhea<br />
every year. Each episode deprives the child of the<br />
nutrition necessary for growth. As a result, Diarrhea<br />
is a major cause of malnutrition, and malnourished<br />
children are more likely to fall ill from Diarrhea.<br />
Dehydration<br />
The most severe threat posed by Diarrhea is<br />
dehydration. During a Diarrheal episode, water<br />
and electrolytes (sodium, chloride, potassium and<br />
bicarbonate) are lost through liquid stools, vomit,<br />
sweat, urine and breathing. Dehydration occurs when<br />
these losses are not replaced.<br />
The degree of dehydration is rated on a scale of<br />
three.<br />
• Early dehydration – no signs or symptoms.<br />
• Moderate dehydration:<br />
- thirst<br />
- restless or irritable behaviour<br />
- decreased skin elasticity<br />
- sunken eyes<br />
• Severe dehydration:<br />
- symptoms become more severe<br />
- shock, with diminished consciousness, lack of<br />
urine output, cool, moist extremities, a rapid<br />
and feeble pulse, low or undetectable blood<br />
pressure, and pale skin.<br />
Death can follow severe dehydration if body fluids<br />
and electrolytes are not replenished, either through the<br />
use of oral rehydration salts (ORS) solution, or through<br />
an intravenous drip.<br />
Causes<br />
Infection: Diarrhea is a symptom of infections<br />
caused by a host of bacterial, viral and parasitic<br />
<strong>org</strong>anisms, most of which are spread by faecescontaminated<br />
water. Infection is more common when<br />
there is a shortage of clean water for drinking, cooking<br />
and cleaning. Rotavirus and Escherichia coli are the<br />
two most common causes of Diarrhea in developing<br />
countries.<br />
Malnutrition: Children who die from Diarrhea<br />
often suffer from underlying malnutrition, which<br />
makes them more vulnerable to Diarrhea. Each<br />
Diarrheal episode, in turn, makes their malnutrition<br />
even worse. Diarrhea is a leading cause of malnutrition<br />
in children under five years old.<br />
Source: Water contaminated with human faeces,<br />
for example, from sewage, septic tanks and latrines,<br />
is of particular concern. Animal faeces also contain<br />
micro<strong>org</strong>anisms that can cause Diarrhea.<br />
Other causes: Diarrheal disease can also spread<br />
from person-to-person, aggravated by poor personal<br />
hygiene. Food is another major cause of Diarrhea<br />
when it is prepared or stored in unhygienic conditions.<br />
Water can contaminate food during irrigation. Fish<br />
and seafood from polluted water may also contribute<br />
to the disease.<br />
Prevention and treatment<br />
Key measures to prevent Diarrhea include:<br />
• access to safe drinking-water<br />
• improved sanitation<br />
• exclusive breastfeeding for the first six months of<br />
life<br />
• good personal and food hygiene<br />
• health education about how infections spread, and<br />
• rotavirus vaccination.<br />
Key measures to treat Diarrhea include the<br />
following.<br />
• Rehydration: Rehydration with intravenous fluids<br />
in case of severe dehydration or shock and/or oral<br />
rehydration salts (ORS) solution for moderate or no<br />
dehydration. ORS is a mixture of clean water, salt<br />
and sugar, which can be prepared safely at home.<br />
It costs a few cents per treatment. ORS is absorbed<br />
in the small intestine and replaces the water and<br />
electrolytes lost in the faeces.<br />
• Zinc supplements: Zinc supplements reduce the<br />
duration of a Diarrhea episode by 25% and are<br />
associated with a 30% reduction in stool volume.<br />
• Nutrient-rich foods: The vicious circle of<br />
malnutrition and Diarrhea can be broken by<br />
continuing to give nutrient-rich foods – including<br />
breast milk – during an episode, and by giving a<br />
nutritious diet – including exclusive breastfeeding<br />
for the first six months of life – to children when<br />
they are well.<br />
• Consulting a health worker, if there are signs of<br />
dehydration.
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KUWAIT MEDICAL JOURNAL 368<br />
Yearly Title Index<br />
Kuwait Medical Journal<br />
(KMJ) <strong>2012</strong>; <strong>Vol</strong>ume <strong>44</strong><br />
Kuwait Medical Journal <strong>2012</strong>, <strong>44</strong> (4): 368 - 369<br />
A Case of Adult Botulism following Ingestion of<br />
Contaminated Egyptian Salted Fish (“Faseikh”). <strong>44</strong> (1) 63<br />
- 65<br />
A Comparison of Outcome of Open Transvesical<br />
Prostatectomy with or Without Bladder Neck Repair. <strong>44</strong><br />
(3) 211 - 214<br />
Acromioclavicular Joint Cyst-Pseudotumour of Shoulder.<br />
<strong>44</strong> (3) 227 - 230<br />
Anterior Lateral Thigh Flap Salvage Reconstruction<br />
of Composite Defects after Recurrent Head and Neck<br />
Cancer: A Case Report. <strong>44</strong> (3) 231 - 234<br />
A Randomized Trial of Epidural <strong>Vol</strong>ume Extension by<br />
Sequential Combined Spinal Epidural Anaesthesia by<br />
Three Technique. <strong>44</strong> (1) 30 - 34<br />
A Solitary Hamartomatous Polyp of the Ileum Causing<br />
Adult Intussusception: A Case Report. <strong>44</strong> (3) 235 - 238<br />
Asthma During Pregnancy: An Immunologic Perspective.<br />
<strong>44</strong> (4) 277 - 286<br />
A Young Male with Behcet’s Disease and Right Ventricular<br />
Thrombi. <strong>44</strong>(1) 66 - 68<br />
Bariatric Surgery and Hypoglycemia. <strong>44</strong>(4) 274 - 276<br />
Bilateral Diffuse Mucinous Cystic Adenocarcinoma of<br />
the Lungs Complicated by Recurrent Pneumothorax in a<br />
Pregnant Woman. <strong>44</strong> (1) 56 - 59<br />
Bilateral Massive Angiomyolipomatosis Associated with<br />
Tuberous Sclerosis. <strong>44</strong> (2) 149 - 153<br />
Can Science Teach a Thing or Two to Nature?. <strong>44</strong> (2) 90<br />
- 91<br />
Celiac Disease as Uncommon Cause of Death in Type 1<br />
Diabetes Mellitus, a Case Study. <strong>44</strong>(4) 335 - 337<br />
Clinical and Bacteriologic Correlates of the PapG Alleles<br />
among Uropathogenic Escherichia Coli Strains Isolated<br />
from Cases of Adult Urinary Tract Infection. <strong>44</strong>(1) 26 - 29<br />
Closed Reduction and Percutaneous Fixation of Lisfranc<br />
Joints Fracture Dislocation. <strong>44</strong> (3) 200 - 210<br />
Comparison of Changes in Body Image of Patients with<br />
Renal Calculi Treated by Pyelolithotomy or Percutaneuos<br />
Lithotripsy. <strong>44</strong> (2) 113 - 117<br />
Dengue Fever among Travelers. <strong>44</strong> (2) 146 - 148<br />
Determining the Effect of Sufentanil on Propofol Injection<br />
Pain. <strong>44</strong> (2) 121 - 124<br />
Diagnostic Computerized Tomography Sign in Peterson’s<br />
Space Hernia after Laparoscopic Roux-en-Y Gastric<br />
Bypass. <strong>44</strong> (1) 69 - 70<br />
Donohue Syndrome: A case report. <strong>44</strong> (3) 224 - 226<br />
Double Appendix: Report of a Case. <strong>44</strong> (4) 329-331<br />
Effect of Granulocyte Colony-Stimulating Factor on Liver<br />
Injury Induced by CCl4: A Correlation between Biochemical<br />
Parameters and Histopathology Results. <strong>44</strong> (1) 46 - 49<br />
Evaluation of Lamivudine Effect on Prevention of<br />
Hepatocellular Carcinoma Recurrence. <strong>44</strong> (2) 154<br />
Evaluating the Association Between Premenstrual<br />
Syndrome and Hematologic Parameters During the Early<br />
Follicular and Late Luteal Phases. <strong>44</strong> (2) 125 - 132<br />
Gaucher Disease Co-existing with Wilson Disease: A Case<br />
Report. <strong>44</strong> (2) 139 - 140<br />
Giant Retroperitoneal Leiomyoma: A Rare Presentation.<br />
<strong>44</strong> (3) 239 - 243<br />
Good for Old As Well As Young; Oral Rehydration<br />
Therapy (ORT). <strong>44</strong> (1) 1 - 2<br />
Hypertension and Hypoglycemia in a Child with<br />
Hepatoblastoma: A Case Report. <strong>44</strong> (2) 133 - 134<br />
Impact of the Discovery of Human Zinc Deficiency. <strong>44</strong> (3)<br />
180 - 182<br />
Incomplete Small Bowel Obstruction Caused by Idiopathic<br />
Diaphragm Disease of the Proximal Ileum. <strong>44</strong> (2) 143 - 145<br />
Individual Cyclooxygenase-2 Inhibitors on the Risk of<br />
Peptic Ulcer Disease: A Population-Based Cohort in<br />
Taiwan. <strong>44</strong>(4) 347 - 348
369<br />
Yearly Title Index<br />
<strong>December</strong> <strong>2012</strong><br />
Individual Statins on the Risk of Colorectal Cancer: A<br />
Population-Based Observation In Taiwan. <strong>44</strong> (3) 255 - 256<br />
Intravenous Labetalol versus Oral Nifedipine in the<br />
Treatment of Severe Hypertension in Pregnancy. <strong>44</strong> (4)<br />
287 - 290<br />
Is Medical Education Really Stressful? A Prospective<br />
Study in Selcuk University, Turkey. <strong>44</strong> (2) 104 - 112<br />
More Expensive Surfaces are Not Always Better. <strong>44</strong> (1) 40<br />
- 45<br />
Mucinous Cystadenoma in a Horse Shoe Kidney. Report<br />
of a Case with Review of Literature. <strong>44</strong> (1) 60 - 62<br />
Neonatal Cardiac Tamponade, What is the Cause?. <strong>44</strong> (2)<br />
141 - 142<br />
New Approaches in the Diagnosis and Treatment of<br />
Susceptible, Multidrug-Resistant and Extensively Drug<br />
Resistant Tuberculosis. <strong>44</strong> (1) 3 - 19<br />
Nosocomial Bacteria on Doctors Mobile Phones. <strong>44</strong> (2) 101<br />
- 103<br />
Obstetric Outcome of Teenage Pregnancies: A 5-Year<br />
Experience in a University Hospital. <strong>44</strong> (3)195 - 199<br />
Oncocytic and Clear Cell Areas in a Solid Pseudopapillary<br />
Tumor of the Pancreas: A Case Report. <strong>44</strong>(4) 332 - 334<br />
Pedicled Seromuscular Flap for Inforcement of High Risk<br />
Intestinal Anastomoses. <strong>44</strong> (3) 190 - 194<br />
Percutaneous Fixation of Recent Scaphoid Fracture. <strong>44</strong> (3)<br />
219 - 223<br />
Persistent Junctional Reciprocating Tachycardia (PJRT).<br />
<strong>44</strong> (1) 53 - 55<br />
Prostatic Adenocarcinoma and Chronic Lymphocytic<br />
Leukemia: a Case Report. <strong>44</strong>(4) 3<strong>44</strong> - 346<br />
Proximal Tibial Osteotomy in Medial Compartment<br />
Osteoarthritis: How High is High?. <strong>44</strong> (2) 92 - 100<br />
Scaphoid Dislocation, either Isolated or Associated with<br />
Axial Carpal Dissociation: Three Cases Report. <strong>44</strong> (3) 2<strong>44</strong><br />
- 250<br />
Spinal Cord Demyelination in Biotinidase Deficiency; A<br />
Case Report. <strong>44</strong> (2) 135 - 138<br />
Spontaneous Hemorrhage in an Adrenal<br />
Pheochromocytoma. <strong>44</strong> (3) 251 - 254<br />
Squamous Cell Carcinoma of the Penis: Magnetic<br />
Resonance Imaging Findings. <strong>44</strong> (4) 338 - 340<br />
Stereotactic Surgery: Diagnostic and Therapeutic Role in<br />
the Management of Brain Disorders and Our Experience<br />
at Ibn Sina Hospital. <strong>44</strong>(4) 303 - 307<br />
Subarachnoid Hemorrhage as a Rare Presentation of<br />
Cerebral Venous Sinus Thrombosis. <strong>44</strong> (1) 50 - 52<br />
Synergy Between Dendritic Cell-Based Vaccine and Anti-<br />
CD137 Monoclonal Antibody in the Treatment of Mouse<br />
Renal Cell Carcinoma. <strong>44</strong>(4) 308 - 315<br />
The Effect of Gene Polymorphisms (ENOS G894T, PON1<br />
and Catalase -262C→T) on fertility and Sperm Parameters<br />
in Turkish Men with Clinical Varicocele: A Pilot Study.<br />
<strong>44</strong>(4) 316 - 321<br />
The Impact of Metabolic Risk Management on Recurrence<br />
of Urinary Stones. <strong>44</strong> (3) 215 - 218<br />
The Microbiology of Vaginal Discharge and the Prevalence<br />
of Bacterial Vaginosis in a Cohort of Non-pregnant women<br />
in Kuwait. <strong>44</strong> (1) 20 - 25<br />
The Prevalence and Route of Delivery of Prolonged<br />
Pregnancies. <strong>44</strong> (2) 118 - 120<br />
Total Hip Replacement after Hip Fracture. Primary or<br />
Secondary Surgery? A Comparison of Clinical and<br />
Radiological Results. <strong>44</strong> (1) 35 - 39<br />
Total Hip Replacement in Nigeria: A Preliminary Report.<br />
<strong>44</strong>(4) 291 - 296<br />
Towards Prevention of Diabetes in Offsprings of Type 2<br />
Diabetic Patients. <strong>44</strong>(4) 297 - 302<br />
Unstable Carpometacarpal Dislocation of Ulnar Four<br />
Fingers – An Easily Overlooked Injury. <strong>44</strong> (4) 341 - 343<br />
Unusual Presentation of Duplex Collecting System: a Case<br />
Report. <strong>44</strong>(4) 326 - 328<br />
Vitamin A and Zinc Alter the Immune Function in<br />
Tuberculosis. <strong>44</strong> (3) 183 - 189<br />
Ward Mechanical Ventilation (WMV) Audit. <strong>44</strong> (4) 322 -<br />
325
<strong>December</strong> <strong>2012</strong><br />
KUWAIT MEDICAL JOURNAL 370<br />
Yearly Author Index<br />
Kuwait Medical Journal<br />
(KMJ) <strong>2012</strong>; <strong>Vol</strong>ume <strong>44</strong><br />
Kuwait Medical Journal <strong>2012</strong>, <strong>44</strong> (4): 370-371<br />
Abassi R ..................................................... 46<br />
Abbas A ...................................................... 190<br />
Abdelgaid SM .......................................... 200, 219<br />
Abdel-Malak F .......................................... 200<br />
Abdul-Azeem ME .................................... 2<strong>44</strong><br />
Abdulla AA .............................................. 297<br />
AbdulSalam SM ....................................... 146<br />
Acarturk O ................................................ 125<br />
Aglamis E .................................................. 113, 316<br />
Ahmad I ..................................................... 183<br />
Ahmad S .................................................... 3<br />
Ahrari B .................................................... 274<br />
Akin Y ....................................................... 215<br />
Amaechi KU ........................................... 291<br />
Alabad A ................................................... 135<br />
Aladily TN .............................................. 3<strong>44</strong><br />
Al-Adwani M ......................................... 338<br />
Al-Ali M .................................................. 322<br />
Al Awadi Y ............................................. 303<br />
Al-Duaij S ................................................ 50<br />
Aleinati T ................................................. 66<br />
Al-Fahdli M ............................................. 50<br />
Al-Hamdan R .......................................... 53<br />
AlHarbi O ................................................ 235<br />
Ali F .......................................................... 149<br />
Ali QE ....................................................... 30<br />
Ali W ......................................................... 183<br />
Al-Jama FE ............................................... 195<br />
Almasi V ................................................... 211<br />
AlMerri K ................................................. 66<br />
Almutairi H ............................................ 338<br />
AlMutairi M ............................................. 66<br />
Al Nassar M ............................................. 63<br />
AlOsaimi S ............................................... 235<br />
AlRashidi FM .......................................... 56<br />
Al-Shammari M ...................................... 101<br />
AlShalfan F .............................................. 146<br />
Al-Summait BAA .................................... 69<br />
Al-Jumah ES ............................................ 135<br />
Alqalaf F .................................................. 135<br />
Altinova S ............................................... 113<br />
Al-Tarrah MY .......................................... 146<br />
Altooky MH ............................................ 20<br />
Alwan MH .............................................. 251<br />
Al Zanki MBY ......................................... 227<br />
Andersen RE ........................................... 40<br />
Anjali T .................................................... 287<br />
Artas H .................................................... 316<br />
Ashok K .................................................. 341<br />
Asker W ................................................... 190<br />
Ates C ...................................................... 316<br />
Atici T ....................................................... 92<br />
Azab HS ................................................... 20<br />
Azizieh F ................................................. 277<br />
Babacan T ................................................. 125<br />
Bahzad M ................................................ 322<br />
Bal B .......................................................... 125<br />
Baykara M ................................................ 215<br />
Bendhifari F ............................................ 297<br />
Beytur A ................................................... 113<br />
Bhandari S ............................................... 30<br />
Bonajmah AA .......................................... 35<br />
Borazan H ............................................... 121<br />
Ceylan C .................................................. 113, 316<br />
Ceylan GG .............................................. 316<br />
Chakravorti ............................................. 224<br />
Chandrashekhar B ............................... 341<br />
Chen PC ................................................... 347<br />
Dagogo-Jack S ....................................... 274<br />
Danisman A ............................................ 215<br />
Dawoud I ................................................ 190<br />
DeMarco SL ............................................ 40<br />
Ego AU ................................................... 291<br />
Elaaser EM .............................................. 20<br />
Elkady AA .............................................. 20<br />
Ellatif MEA ............................................ 190<br />
El Morshidy AF .................................... 219, 2<strong>44</strong><br />
El-Sharakawy AI .................................. 297<br />
Erdogru T ............................................... 215<br />
Ermutlu C ............................................... 92<br />
Faeizi F .................................................... 46<br />
Feng J ....................................................... 239<br />
Gelidan A ................................................ 231<br />
Gibson S .................................................. 143<br />
Greenough WB ....................................... 1, 40<br />
Gupta MK ............................................... 183
371<br />
Yearly Author Index<br />
<strong>December</strong> <strong>2012</strong><br />
Habib SK ................................................. 30<br />
Haidari M ............................................... 211<br />
Halallkhor HTS ...................................... 46<br />
Haleem S ................................................. 30<br />
Hamed I .................................................. 338<br />
Hammoud MS ........................................ 141<br />
Hegde BM ............................................... 90<br />
Hutchinson IF ......................................... 143<br />
Ibrahim YMAE ...................................... 335<br />
Iskandar MM .......................................... 69<br />
Ismail ZA ................................................. 69<br />
Jaiprakash P ........................................... 332<br />
Jayant T M ............................................... 60<br />
Joshi R ...................................................... 101<br />
Kahvic M ................................................ 329<br />
Kantoush H ........................................... 329<br />
Kara I ....................................................... 121<br />
Karaoglu N .............................................. 104<br />
Karimi A .................................................... 26<br />
Khadadah S ............................................. 322<br />
Khajah H .................................................. 303<br />
Khan A ...................................................... 303<br />
Khan HA ................................................... 53<br />
Khalifa NM ............................................... 133<br />
Khalifa SO ................................................. 133<br />
Khalil MF .................................................. 141<br />
Khorramabadi MS ................................... 211<br />
Kose S ........................................................ 125<br />
Kushwaha RAS ........................................ 183<br />
Lai HC ....................................................... 255, 347<br />
Lai SW ....................................................... 154, 255, 347<br />
Liao KF ...................................................... 154, 255 , 347<br />
Liu J ........................................................... 239<br />
Mayanglambam RD .............................. 287<br />
Mehmood K ............................................. 53<br />
Memisoglu K ........................................... 92<br />
Menon V .................................................. 60<br />
Mittal R ..................................................... 133<br />
Mokaddas E ............................................. 3<br />
Mokhtar M ............................................... 63<br />
Mondal R .................................................. 139, 224<br />
Mothafar FJ ............................................... 56<br />
Muo CH ..................................................... 255, 347<br />
Muqim ....................................................... 56<br />
Muttikkal TJE ........................................... 149, 227<br />
Nafisi MR .................................................. 26<br />
Nandi M .................................................... 139, 224<br />
Nejad SP .................................................... 118<br />
Noor TA ..................................................... 35<br />
Otelcioglu S ............................................... 121<br />
Ozturk A .................................................... 92<br />
Parsian H ................................................... 46<br />
Pospula W ................................................. 35<br />
Prakash C .................................................. 35<br />
Prasad AS .................................................. 180<br />
Prasad KV ................................................ 60<br />
Prasad R .................................................... 183<br />
Pritish S .................................................... 341<br />
Qujeq D ..................................................... 46<br />
Rao ACK .................................................. 332<br />
Raina A ..................................................... 141<br />
Raghupathy R ........................................ 277<br />
Ramadan A ............................................. 303<br />
Rawdhan H ............................................. 101<br />
Rezanejad J .............................................. 211<br />
Ronald M ................................................. 251<br />
Rotimi VO ................................................ 63<br />
Saad E ....................................................... 235<br />
Sadeq FJAA .............................................. 149, 227<br />
Saha AK .................................................... 143<br />
Sahin N ..................................................... 92<br />
Salam SA .................................................. 50<br />
Salah M .................................................... 200<br />
Saleh AAM .............................................. 20<br />
Saleem M ................................................. 183<br />
Sanam M .................................................. 118<br />
Saritas TB ................................................. 121<br />
Sarkar S .................................................... 139<br />
Seker M ..................................................... 104<br />
Serefoglu EC ............................................. 113<br />
Shamsah M ............................................... 101<br />
Sharma D .................................................. 30<br />
Sharma PK ............................................... 326<br />
Shirzad H .................................................. 26<br />
Singh NG ................................................. 329<br />
Sung FC .................................................... 255, 347<br />
Tekin HS ................................................... 125<br />
Tuncer S .................................................... 121<br />
Uwatoronye NC .................................... 291<br />
Valiathan M ............................................ 332<br />
Varshney R ............................................... 30<br />
Valente SA ................................................ 40<br />
Vijay MK .................................................. 326<br />
Vijay P ...................................................... 326<br />
Wei SM...................................................... 308<br />
Wraikat AA ............................................. 3<strong>44</strong><br />
Yan ZZ...................................................... 308<br />
Yorulmaz H .............................................. 125<br />
Yuce H ...................................................... 316<br />
Yucel S ....................................................... 215<br />
Zakaria Y .................................................. 2<strong>44</strong><br />
Zamanzad B ............................................. 26<br />
Zhou S ....................................................... 239<br />
Zhou J ....................................................... 308<br />
Zinkhan S ................................................. 251