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Agenda for Computers in Perinatal Medicine meeting 2002

Agenda for Computers in Perinatal Medicine meeting 2002

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Scientific Forum and Special Focus Group Reports<br />

from the Society <strong>for</strong> Maternal-Fetal Medic<strong>in</strong>e’s 25 th<br />

Annual Meet<strong>in</strong>g<br />

Follow<strong>in</strong>g are summaries of the Scientific Forums and Special Focus<br />

Groups held at the SMFM 25th Annual Meet<strong>in</strong>g. Scientific Forums and<br />

Special Focus Groups meet <strong>in</strong> conjunction with the SMFM Annual Meet<strong>in</strong>g<br />

however the op<strong>in</strong>ions and conclusions expressed <strong>in</strong> these summaries are<br />

not necessarily the views of the Society.<br />

COMPUTERS IN MATERNAL -<br />

FETAL MEDICINE<br />

Feb 9th 2005 3:00 – 6:00 PM<br />

Reno, Nevada<br />

The scientific <strong>for</strong>um was very well attended with 40 + participants <strong>in</strong>clud<strong>in</strong>g 7<br />

participants present<strong>in</strong>g.<br />

Computerized labor management can be a<br />

reality with adequate labor monitor<strong>in</strong>g. The<br />

objectiove, computer based labor monitor was<br />

presented and discussed by Dan Far<strong>in</strong>e MD.<br />

Mount S<strong>in</strong>ai Hospital, University of Toronto.<br />

This new method of labor evaluation could<br />

replace subjective digital evaluation with<br />

computer based, cont<strong>in</strong>ous labor monitor<strong>in</strong>g<br />

system.<br />

Newly developed, computer generated,<br />

fetal real time 4 dimensional<br />

echocardiography was presented by Dev<br />

Maulik, MD. Professor and Chairman of<br />

Ob.Gyn Department W<strong>in</strong>throp Hospital,<br />

NY. Advantages of volume scan us<strong>in</strong>g<br />

matrix transducer were outl<strong>in</strong>ed and<br />

computer aided image generation was<br />

presented.


Dr Shraga Rottem from Ironfan<br />

Institute, Columbia Univ, NY Center<br />

presented AI based early pregnancy<br />

diagnostic algorhytm to detect fetal<br />

abnormalities by sonography. AI <strong>for</strong><br />

First Trimester Genetic Mapp<strong>in</strong>g by<br />

Ultrasound is designed to help<br />

physician correctly diagnose fetal<br />

abnormalities.<br />

Computer assisted simulation of<br />

emergency conditions <strong>in</strong> labor room was<br />

presented by group of Dr Ariel Many, MD<br />

Lis Hospital, Tel Aviv, Israel.<br />

Specific obstetrical situations can be<br />

dealt with more effectively if studied <strong>in</strong><br />

simulation enviroment.<br />

Integration of Research and Cl<strong>in</strong>ical In<strong>for</strong>mation<br />

Systems <strong>in</strong> OB/GYN was presented by Dr Sean<br />

Blackwell from Wayne State Univ, MI. His<br />

group has developed computer system<br />

designed <strong>for</strong> the needs of the active Ob/Gyn<br />

department. Image management, patient’s<br />

documentation, medical research and other data<br />

are <strong>in</strong>tegrated <strong>in</strong> one system.<br />

In<strong>for</strong>matics and Beyond, was a topic of the<br />

presentation of Dr Emily Hamilton, from<br />

McGill Univ. QE, Canada. Dr Hamilton has<br />

developed computer system that can<br />

monitor and help <strong>in</strong> mak<strong>in</strong>g correct<br />

decisions <strong>in</strong> manag<strong>in</strong>g obstetrical<br />

situationsmore efficiently.


Intelligent patient’s record; from data to<br />

<strong>in</strong><strong>for</strong>mation. Experience with implementation of<br />

electronic medical recordsb that monitors cl<strong>in</strong>ical<br />

decisions was presented by Shoshana<br />

Haberman, MD, Maimonides medical Center,<br />

NY. Dr Haberman experience was significant <strong>in</strong><br />

be<strong>in</strong>g consistently <strong>in</strong> use <strong>for</strong> several years with<br />

measurable improvements <strong>in</strong> obstetrical care.<br />

Experience with Development of Prenatal<br />

Electronic Medical Records was presented<br />

by Bruce Chen, MD from Tripler Med Center,<br />

HI. In his presentation Dr Chen has<br />

reviewed difficulty and limitations <strong>in</strong><br />

develop<strong>in</strong>g electronic medical records even<br />

if <strong>in</strong>stitutional support is available. His<br />

experience is <strong>in</strong>valuable to anyone plann<strong>in</strong>g<br />

on develop<strong>in</strong>g such a records<br />

Andrzej Lysikiewicz, MD, PhD. W<strong>in</strong>throp<br />

Hospital, SUNY, Nypresented Computer<br />

assisted 3 D fetal biometry, VOCAL (virtual<br />

organ calculation analysis). This<br />

technique allows <strong>for</strong><br />

volumemeasurementsof fetal organs<br />

recreated <strong>in</strong> computer model.<br />

Members <strong>in</strong>terested <strong>in</strong> active participation <strong>in</strong> future meet<strong>in</strong>gs are <strong>in</strong>vited to contact Dr<br />

Andrzej Lysikiewicz or Dr Sean Blackwell with any suggestions or plans <strong>for</strong> the future<br />

meet<strong>in</strong>gs.<br />

Special Interest Group - <strong>Computers</strong> <strong>in</strong> Maternal Fetal Medic<strong>in</strong>e<br />

A. Lysikiewicz MD,<br />

Director, Per<strong>in</strong>atal Ultrasound.<br />

W<strong>in</strong>throp Hospital, M<strong>in</strong>eola, NY<br />

120 M<strong>in</strong>eola Blvd Suite 110, N.Y, N.Y.11501<br />

Tel - 516 663 3020.<br />

Alyss@msn.com


Critical Care Summary<br />

Leader: Stephanie Mart<strong>in</strong>, MD<br />

Once aga<strong>in</strong>, several <strong>in</strong>terest<strong>in</strong>g cases were presented <strong>for</strong> a lively and <strong>in</strong>terest<strong>in</strong>g<br />

discussion. Walter Harry, a maternal-fetal medic<strong>in</strong>e fellow from the University of<br />

Arizona, and Stephanie Mart<strong>in</strong>, a per<strong>in</strong>atologist from Phoenix, AZ, highlighted the<br />

importance of advance plann<strong>in</strong>g and preventive therapy to m<strong>in</strong>imize the need <strong>for</strong> blood<br />

products <strong>in</strong> patients at high risk <strong>for</strong> hemorrhage. Options presented <strong>in</strong>cluded antepartum<br />

IV Iron supplementation, erythropoiet<strong>in</strong>, acute normovolemic hemodilution, autologous<br />

blood donation, and use of the cell saver technology.<br />

Leah Battista, a Maternal-fetal medic<strong>in</strong>e fellow at the University of Cali<strong>for</strong>nia, Irv<strong>in</strong>e,<br />

presented an unusual patient with a large pancreatic pseudocyst dur<strong>in</strong>g pregnancy. While<br />

many <strong>in</strong> the audience expressed temptation to surgically excise the cyst due to its size and<br />

presentation, Dr. Battista presentation of the literature supported the conservative<br />

approach adopted by the patient's medical team. This patient educated us all!<br />

Connie Graves, a per<strong>in</strong>atologist at Vanderbilt University <strong>in</strong> Nashville, TN, and resident<br />

Patricia Scott, MD impressed the audience with their astute and timely diagnosis of<br />

herpetic hepatitis and encephalitis. This patient certa<strong>in</strong>ly benefited from Dr. Graves'<br />

prior experience with a similar patient and those <strong>in</strong> the audience have a new appreciation<br />

<strong>for</strong> the manifestations and diagnosis of herpetic hepatitis.<br />

We are look<strong>in</strong>g <strong>for</strong>ward to more <strong>in</strong>terest<strong>in</strong>g cases next year!<br />

Stephanie Mart<strong>in</strong>


2005 Genetics Special Interest Group<br />

Leader – George P. Henry, MD<br />

This year focused on implementation of First Trimester Risk Estimation.<br />

S<strong>in</strong>ce I was one of the speakers Jack Larson was moderator this year.<br />

Sherman Elias was a late addition to speak about progress on a<br />

comb<strong>in</strong>ed MFM and Genetics fellowship which should satisfy both boards.<br />

David Krantz spoke about the largest private data base us<strong>in</strong>g nuchal<br />

translucency, free BHCG, and PAPP-A; Demonstrat<strong>in</strong>g that it can be and is<br />

implemented <strong>in</strong> the USA, with certification.<br />

Mary Dalton had been a featured speaker dur<strong>in</strong>g preparations <strong>for</strong> the<br />

Faster Trial and she spoke this year on SMFM plans <strong>for</strong> NT Certification. The<br />

entire program is available on the SMFM web site. The first question was when<br />

the society would get to vote on this program. The answer was that the<br />

program is already set up.<br />

Jon Hyett, from London, reviewed the practicalities, pr<strong>in</strong>ciples, and<br />

experience of the Fetal Medic<strong>in</strong>e Foundation program.<br />

Mark Evans reviewed multiple data sets and reviewed how new<br />

technologies move from experimental to available without <strong>in</strong>surance<br />

reimbursement to rout<strong>in</strong>e with <strong>in</strong>surance reimbursement.<br />

The contradictory premise by George Henry was that First Trimester<br />

Risk Estimation is NOT cost effective <strong>for</strong> advanced maternal age patients, <strong>in</strong><br />

this country, compared to rout<strong>in</strong>e amniocentesis <strong>for</strong> AMA. The first blush would<br />

lead one to th<strong>in</strong>k that screen<strong>in</strong>g AMA patients and do<strong>in</strong>g CVS on the 10%<br />

screen positive would save money over amniocentesis <strong>for</strong> all AMA patients. But<br />

with 80% detection of Down syndrome one must <strong>in</strong>clude the $1 million each<br />

lifetime cost <strong>for</strong> cases which would not have been missed by amniocentesis.<br />

Because CVS has a 1% pregnancy loss rate vs. 1/1100 <strong>for</strong> amniocentesis<br />

screen<strong>in</strong>g results <strong>in</strong> more pregnancy losses. Amnios reveal ALL aneuploidy<br />

while risk estimation misses 20% of Trisomy, 20% of Trisomy 18, and more sex<br />

chromosome aneuploidy. Risk estimation is appropriate <strong>for</strong> low risk populations<br />

to identify patients who could benefit from diagnostic test<strong>in</strong>g.<br />

Apply<strong>in</strong>g risk estimation to AMA patients:<br />

1. Does not save money<br />

2. Does not save pregnancies<br />

3. Does do harm by falsely reassur<strong>in</strong>g perhaps half of aneuploid pregnancies<br />

Even 80% detection of Trisomy 21 is not good enough when we have a<br />

very safe 100% accurate diagnostic test by amniocentesis. Risk estimation if<br />

not diagnostic and is not a substitute <strong>for</strong> diagnostic test<strong>in</strong>g by amniocentesis.<br />

This yearly report is adjusted to <strong>in</strong>clude the 2004 report which was<br />

withheld by SMFM. It was submitted on time and after much argument it was<br />

f<strong>in</strong>ally posted 2 months later when you had no likelihood of stumbl<strong>in</strong>g upon it.<br />

You may decide <strong>for</strong> yourself why SMFM may not have wanted you to see it.


Genetics Special Interest Group<br />

2004<br />

At the genetics special <strong>in</strong>terest group, Shama Jari reviewed Smith-Lemli-<br />

Opitz Syndrome with prenatal onset of growth deficiency as a result of a<br />

metabolic defect which impedes production of cholesterol. SLO will become a<br />

part of the differential diagnosis <strong>in</strong> cases of IUGR especially with a low serum<br />

estriol.<br />

Louise Wilk<strong>in</strong>s reviewed the history and data regard<strong>in</strong>g the possible<br />

<strong>in</strong>creased risk of genetic impr<strong>in</strong>t<strong>in</strong>g errors as a result of IVF, ICSI, embryo<br />

manipulation and culture. There is now a registry at her center <strong>for</strong> Beckwith-<br />

Wiedemann syndrome cases associated with IVF pregnancies.<br />

The bulk of the program revolved around genetic screen<strong>in</strong>g- both first<br />

and second trimester as <strong>in</strong> the FASTER TRIAL (first and second trimester<br />

evaluation of risk). In our session it was clear from the SMFM abstracts and<br />

prelim<strong>in</strong>ary lectures be<strong>in</strong>g given by FASTER TRIAL authors that their results<br />

would not replicate the experience of other groups- some of which have a larger<br />

experience than the FASTER authors.<br />

Jon Hyett reviewed first trimester screen<strong>in</strong>g by biochemistry (free beta<br />

HCG plus PAPP-A) and ultrasound <strong>for</strong> nuchal translucency. It is clear that<br />

meticulous tra<strong>in</strong><strong>in</strong>g and cont<strong>in</strong>ued oversight is <strong>in</strong>tegral to success of such a<br />

program. He also reviewed the variations of us<strong>in</strong>g first trimester followed by<br />

second trimester screen<strong>in</strong>g (sequential) or of <strong>in</strong>tegrated screen<strong>in</strong>g where<br />

biochemistry and ultrasound data from both first and second trimester are<br />

obta<strong>in</strong>ed and comb<strong>in</strong>ed be<strong>for</strong>e mak<strong>in</strong>g an assessment of risk. Only then is the<br />

option of the def<strong>in</strong>itive diagnostic test offered to the patient.<br />

The latter is the FASTER TRIAL model. The published computer model<br />

by Nick Wald (SURUSS study) projects 85% detection of Down syndrome <strong>for</strong> a<br />

1.3% screen positive rate. While this sounds as good as you could possibly get<br />

it requires withhold<strong>in</strong>g the first trimester biochemical and ultrasound f<strong>in</strong>d<strong>in</strong>gs<br />

from the patient. That would not be acceptable or legal <strong>in</strong> this country.<br />

Professor Wald has acknowledged at the American College Medical Genetics


meet<strong>in</strong>g that he holds a patent on the computer model<strong>in</strong>g system <strong>for</strong> <strong>in</strong>tegrated<br />

screen<strong>in</strong>g.<br />

Jon Hyett reports about 80% Down syndrome detection by first trimester<br />

screen<strong>in</strong>g <strong>for</strong> a 5% rate of diagnostic CVS or amniocentesis. The FASTER<br />

TRIAL ascerta<strong>in</strong>ed only about 60% by first trimester screen<strong>in</strong>g. In their trial they<br />

excluded “cystic hygromas” as a different f<strong>in</strong>d<strong>in</strong>g than <strong>in</strong>creased nuchal<br />

translucency. This removed twenty-six Down syndrome cases which were, <strong>in</strong><br />

fact, seen to be abnormal, i.e. detected, on first trimester ultrasound. Includ<strong>in</strong>g<br />

those cases would have brought them close to the British and other USA<br />

experiences.<br />

When first trimester screen<strong>in</strong>g is be<strong>in</strong>g used most cases of Down<br />

syndrome are detected (whether you accept 60% or 80%). The problem with<br />

then add<strong>in</strong>g a second trimester screen<strong>in</strong>g (biochemical and ultrasound) is that 3<br />

of 5 or 4 of 5 cases of Down Syndrome are already absent so the cost benefit of<br />

second trimester screen<strong>in</strong>g is severely degraded and may not be relevant to do.<br />

In the US, us<strong>in</strong>g second trimester screen<strong>in</strong>g alone, we have about 80%<br />

detection of Down syndrome <strong>for</strong> a 5% amniocentesis rate.<br />

Simona Cicero reviewed the data on presence/absence of nasal bone as<br />

a marker <strong>for</strong> risk of Down Syndrome. Add<strong>in</strong>g nasal bone to first trimester<br />

screen<strong>in</strong>g br<strong>in</strong>gs Down Syndrome Detection to above 90% by first trimester<br />

screen<strong>in</strong>g. She emphasized aga<strong>in</strong> how critical teach<strong>in</strong>g and meticulous<br />

technique is to success with nasal bone visualization. Nasal bone was not a<br />

consideration at <strong>in</strong>itiation of the the FASTER TRIAL. It was added to the first<br />

trimester scans partway through with a limited attempt to tell (but not teach)<br />

people how to do it. None of the 9 Down Syndrome cases exam<strong>in</strong>ed <strong>for</strong> nasal<br />

bone were thought to have absent nasal bone on ultrasound. The FASTER<br />

authors conclude that nasal bone is not effective. This simply proves aga<strong>in</strong> that<br />

if you do not know how to do a test it will not work well. It reportedly works well,<br />

with proper tra<strong>in</strong><strong>in</strong>g and quality control, <strong>in</strong> England, the US, and <strong>in</strong>ternationally.<br />

There is already a large data base <strong>in</strong> the US us<strong>in</strong>g biochemistry and<br />

ultrasound <strong>for</strong> nuchal translucency. It has been modeled on the U.K.<br />

experience with thorough teach<strong>in</strong>g and certification of proper nuchal<br />

translucency measurement. That database which is larger than the FASTER


TRIAL per<strong>for</strong>ms well with 90% detection of Down syndrome <strong>for</strong> a 5% screen<br />

positive rate.<br />

The session concluded with a summation and geneticist’s perspective.<br />

The FASTER TRIAL was a huge federal f<strong>in</strong>ancial commitment to attempt to<br />

duplicate the British experience <strong>in</strong> the U.S. It will no doubt be published as a<br />

lead article <strong>in</strong> a prestigious journal. It may take a while to be seen as a disaster<br />

where a number of academic centers, armed with $13.5 million of federal funds,<br />

couldn’t do screen<strong>in</strong>g as well as our European colleagues accomplished with<br />

nearly no visible support.<br />

Because <strong>in</strong>tegrated screen<strong>in</strong>g requires withhold<strong>in</strong>g first trimester f<strong>in</strong>d<strong>in</strong>gs<br />

from the patient it would be wrong <strong>for</strong> the SMFM to attempt to implement a U.S.<br />

program modeled after the FASTER TRIAL.<br />

One must back up and look at the big picture of chromosome<br />

abnormalities. The above screen<strong>in</strong>g focuses on Trisomy 21 and most Trisomy<br />

18, but this is not even half of the chromosome abnormalities which happen to<br />

families. Chromosome abnormalities are devastat<strong>in</strong>g to families emotionally<br />

and f<strong>in</strong>ancially. Down syndrome is a prom<strong>in</strong>ent focus with the costs of 100%<br />

mental retardation requir<strong>in</strong>g lifelong assisted liv<strong>in</strong>g plus a 40% <strong>in</strong>cidence of<br />

congenital heart disease. Other chromosome abnormalities also have serious<br />

consequences even threaten<strong>in</strong>g the <strong>in</strong>tact cont<strong>in</strong>uity of families. Down<br />

Syndrome is not the only problem. The other th<strong>in</strong>g to note is that all screen<strong>in</strong>g<br />

discussions <strong>in</strong>volve maximiz<strong>in</strong>g detection while m<strong>in</strong>imiz<strong>in</strong>g <strong>in</strong>vasive diagnostic<br />

test<strong>in</strong>g on the assumption that amniocentesis is dangerous and to be avoided.<br />

But amniocentesis is DIAGNOSTIC.<br />

The most important abstract from the FASTER TRIAL shows the risk of<br />

pregnancy loss from amniocentesis is 0.15%- far less than the 0.5% risk long<br />

quoted by pessimists <strong>in</strong> any discussion of avoid<strong>in</strong>g amniocentesis. There is<br />

now published data (Lancet Jan. 24, 2004) that amniocentesis is cost effective<br />

at any age or risk level. That study preceded the FASTER abstract - so<br />

amniocentesis is, <strong>in</strong> fact, far more cost effective at any age or risk level.<br />

The diverse approaches to screen<strong>in</strong>g appear to be superb <strong>for</strong><br />

identification of <strong>in</strong>creased risk <strong>in</strong> patients who were not already known to be at<br />

risk but may not be as appropriate <strong>for</strong> “risk reduction” by biochemistry or<br />

ultrasound <strong>in</strong> women already known to have an <strong>in</strong>dication <strong>for</strong> amniocentesis.


The fallacy of cytogenetics by ultrasound was explored <strong>in</strong> prior years’<br />

sessions. Screen<strong>in</strong>g is a great application <strong>for</strong> low risk populations to identify<br />

cases need<strong>in</strong>g the option of further test<strong>in</strong>g. If couples wish to avoid “the needle”<br />

by us<strong>in</strong>g screen<strong>in</strong>g as their decision maker they should understand that after<br />

amniocentesis they have no risk of a diagnosable chromosome abnormality <strong>in</strong><br />

their newborn. If their screen<strong>in</strong>g test gives them a statistically decreased risk, it<br />

is their prerogative (or their government health care plan) to decl<strong>in</strong>e diagnostic<br />

test<strong>in</strong>g. That leaves them with a persistent chance of an abnormal outcome-at<br />

least half of what it was a priori- which cannot be predicted or prevented by<br />

presently available screen<strong>in</strong>g tests.<br />

The only way to know that a fetus has normal chromosomes is to<br />

exam<strong>in</strong>e the chromosomes. Patients may select that <strong>in</strong>stead of screen<strong>in</strong>g. In<br />

order to decrease human suffer<strong>in</strong>g as well as on a f<strong>in</strong>ancial basis amniocentesis<br />

should be <strong>in</strong>creas<strong>in</strong>g and not discouraged <strong>in</strong> the process of screen<strong>in</strong>g.<br />

Screen<strong>in</strong>g <strong>for</strong> previously unknown risk plus more liberal use of diagnostic<br />

test<strong>in</strong>g will become the norm.<br />

George P. Henry, MD


2005 SMFM Meet<strong>in</strong>g<br />

Maternal-Fetal Surgery Scientific Forum<br />

Once aga<strong>in</strong>, the Maternal-Fetal Surgery Scientific Forum presented to a stand<strong>in</strong>g-room-only audience at<br />

the Annual Meet<strong>in</strong>g of the SMFM. The Forum began with a summary by Mary D’Alton, M.D., New York,<br />

NY, of a fetal therapy workshop conducted at the NICHD <strong>in</strong> 2004. One of the major outcomes of the<br />

NICHD workshop was a consensus that an umbrella organization to foster collaboration <strong>in</strong> the conduct of<br />

quality research and cl<strong>in</strong>ical services dur<strong>in</strong>g the diagnosis and treatment of fetal anomalies is needed.<br />

Workshop participants agreed that such a group should be <strong>in</strong>clusive and broad-based with fund<strong>in</strong>g<br />

capabilities. Several models of collaborative organizations were discussed.<br />

Cather<strong>in</strong>e Shaer, M.D., Bethesda, Maryland, provided an update of the ongo<strong>in</strong>g MOMS Trial<br />

(Management of Myelomen<strong>in</strong>gocele Study), the NICHD-sponsored randomized trial of prenatal versus<br />

postnatal closure of myelomen<strong>in</strong>gocele. As of January 2005, 64 patients have been randomized. The<br />

12-month follow up exam<strong>in</strong>ations have begun. Participat<strong>in</strong>g cl<strong>in</strong>ical centers are Vanderbilt University<br />

Medical Center, CHOP, and UCSF. Candidates can obta<strong>in</strong> useful <strong>in</strong><strong>for</strong>mation at<br />

www.sp<strong>in</strong>abifidamoms.com or by call<strong>in</strong>g 1-866-ASK-MOMS.<br />

Louise Wilk<strong>in</strong>s-Haug, M.D., Boston, MA, presented outcome data of balloon dilation of severe aortic<br />

stenosis <strong>in</strong> X fetuses <strong>in</strong> the second trimester of pregnancy. The m<strong>in</strong>imally <strong>in</strong>vasive procedure was<br />

technically successful <strong>in</strong> 22/29 subjects with a median gestational age of 24 weeks. In liveborn <strong>in</strong>fants<br />

follow<strong>in</strong>g technically successful aortic valve dilation <strong>in</strong> utero, 6/20 (30%) have biventricular circulation.<br />

Further <strong>in</strong><strong>for</strong>mation can be obta<strong>in</strong>ed by call<strong>in</strong>g 617-355-8967/7893.<br />

Jan Deprest, M.D., Leuven, Belgium, presented <strong>in</strong><strong>for</strong>mation about the European pilot study of congenital<br />

diaphragmatic hernia (CDH) treatment <strong>in</strong> utero. Offered only to patients with severe disease with a low<br />

likelihood of survival, therapy <strong>in</strong>volves balloon occlusion of the trachea via a m<strong>in</strong>imally <strong>in</strong>vasive approach<br />

<strong>in</strong> the second trimester of pregnancy. Further ref<strong>in</strong>ements <strong>in</strong>clude removal of the balloon after optimal<br />

lung growth is documented, mak<strong>in</strong>g an EXIT procedure unnecessary. Prelim<strong>in</strong>ary results have been<br />

promis<strong>in</strong>g and a randomized trial is anticipated. Michael Harrison, M.D., San Francisco, CA, widely<br />

recognized as the father of fetal surgery, discussed his 25 years of experience <strong>in</strong> the treatment of this<br />

serious congenital anomaly. He applauded the ref<strong>in</strong>ements <strong>in</strong> the procedure <strong>in</strong>troduced by the European<br />

research group, and po<strong>in</strong>ted out that the last U.S. trial began almost six years ago. Based on the<br />

consistently encourag<strong>in</strong>g outcomes reported <strong>in</strong> the European study, a new trial <strong>in</strong> the United States may<br />

soon be anticipated.<br />

Joseph Bruner, M.D., Nashville, Tennessee, presented an update on the pilot study of amnioexchange <strong>for</strong><br />

gastroschisis at Vanderbilt. A multicenter randomized controlled trial is planned and expected to beg<strong>in</strong><br />

this year.<br />

Douglas Wilson, M.D., Philadelphia, PA, described the CHOP experience <strong>in</strong> the treatment of lower ur<strong>in</strong>ary<br />

tract obstructions (LUTO). Evaluation and therapy us<strong>in</strong>g vesicoamniotic shunt<strong>in</strong>g and/or cystoscopy are<br />

offered. In the last four years, 76 patients were evaluated and 36 were found to be suitable candidates<br />

<strong>for</strong> therapy. Twenty fetuses received shunts, and four underwent cystoscopic evaluation and treatment.<br />

Wilson emphasized that to date, no randomized trials of LUTO therapy <strong>in</strong> utero have been conducted.<br />

Interested parties can be referred to 1-800-IN-UTERO at CHOP.<br />

Ruben Qu<strong>in</strong>tero, M.D., Tampa, FL, announced the completion of his quasi-randomized trial compar<strong>in</strong>g<br />

laser photocoagulation of placental anastomoses to serial amnioreduction <strong>for</strong> Stages III and IV tw<strong>in</strong>-tw<strong>in</strong><br />

transfusion syndrome (TTTS). The trial was stopped after 56 patients enrolled, with only one patient


choos<strong>in</strong>g serial amniocentesis. The results showed improved survival rates <strong>in</strong> the laser group compared<br />

to a matched amniocentesis control group. Results of the trial are remarkably similar to those generated<br />

by the Eurofetus Trial of TTTS, published last year, and support claims of the superiority of laser therapy<br />

<strong>for</strong> the treatment of severe TTTS. Robert Ball, M.D., San Francisco, CA, updated the <strong>for</strong>um on the<br />

ongo<strong>in</strong>g NICHD-funded randomized trial of laser therapy versus amnioreduction <strong>for</strong> treatment of TTTS <strong>in</strong><br />

the United States. Recent changes <strong>in</strong> the study protocol <strong>in</strong>clude the addition of a third laser center <strong>in</strong><br />

C<strong>in</strong>c<strong>in</strong>nati, OH. Subjects can now return home after treatment, and rescue laser therapy is available <strong>for</strong><br />

those fail<strong>in</strong>g amnioreduction treatments. Candidates can be referred to 1-888-FETAL59 (C<strong>in</strong>c<strong>in</strong>nati<br />

Children’s Hospital), 1-800-IN-UTERO (CHOP) or 1-800-RX-FETUS (UCSF) <strong>for</strong> further <strong>in</strong><strong>for</strong>mation.<br />

Timothy Crombleholme, M.D., C<strong>in</strong>c<strong>in</strong>nati, OH, stressed the importance of complet<strong>in</strong>g the NICHD-funded<br />

TTTS trial and listed a series of research issues that have not yet been addressed.<br />

Ruben Qu<strong>in</strong>tero, M.D., Tampa, FL, then <strong>in</strong>vited participation <strong>in</strong> two new cl<strong>in</strong>ical trials. The Florida Institute<br />

<strong>for</strong> Fetal Diagnosis and Therapy at St. Joseph’s Women’s Hospital, Tampa, FL, is seek<strong>in</strong>g 60 subjects to<br />

participate <strong>in</strong> a randomized cl<strong>in</strong>ical trial to assess the outcome of monochorionic-diamniotic pregnancies<br />

affected by selective <strong>in</strong>trauter<strong>in</strong>e growth restriction (IUGR) of one tw<strong>in</strong>, managed either expectantly or by<br />

selective laser photocoagulation of placental communicat<strong>in</strong>g vessels. Candidates must have IUGR (EFW<br />

< 10 th %ile <strong>for</strong> EGA) of one tw<strong>in</strong>, with absent or reversed end diastolic velocities <strong>in</strong> the umbilical artery, at<br />

< 26 weeks’ gestation. Candidates must not have coexistent oligohydramnios-polyhydramnios (maximum<br />

vertical pocket of amniotic fluid > 8 cm <strong>in</strong> one sac and < 2 cm <strong>in</strong> the other). In addition, the Florida<br />

Institute is seek<strong>in</strong>g 36 patients with iatrogenic previable premature rupture of membranes secondary to<br />

genetic amniocentesis to participate <strong>in</strong> a randomized trial compar<strong>in</strong>g use of the amniopatch to expectant<br />

management. Amniopatch is the <strong>in</strong>traamniotic <strong>in</strong>jection of platelets and cryoprecipitate. For further<br />

<strong>in</strong><strong>for</strong>mation, please call 1-888-FETAL-77 or proceed to www.fetalmd.com.<br />

The Scientific Forum on Maternal-Fetal Surgery was moderated by Joseph Bruner, M.D., Nashville, TN.


Summary of Proceed<strong>in</strong>gs <strong>for</strong> the 2005 SMFM Annual Meet<strong>in</strong>g: Per<strong>in</strong>atal<br />

Epidemiology Scientific Forum<br />

Topic: Methodological Controversies <strong>in</strong> Obstetric Cl<strong>in</strong>ical Research<br />

Course Description (as described <strong>in</strong> the meet<strong>in</strong>g program): The focus of this<br />

scientific <strong>for</strong>um will be two common areas of controversy <strong>in</strong> cl<strong>in</strong>ical research: stopp<strong>in</strong>g<br />

cl<strong>in</strong>ical trials and select<strong>in</strong>g mean<strong>in</strong>gful & important primary outcomes. The Forum<br />

attendees will first review the operations of Data Monitor<strong>in</strong>g & Safety Committees<br />

(DMSC), highlight<strong>in</strong>g general topics of debate and conflict regard<strong>in</strong>g committee conduct.<br />

Second, specific examples will be presented <strong>in</strong> which a cl<strong>in</strong>ical trial was stopped based<br />

on a controversial decision by a DMSC. Po<strong>in</strong>ts and counterpo<strong>in</strong>ts regard<strong>in</strong>g the decision<br />

to cease each trial will be outl<strong>in</strong>ed. Third, the benefits, limitations and pitfalls of us<strong>in</strong>g<br />

surrogate or composite primary outcomes <strong>in</strong> cl<strong>in</strong>ical research will be presented,<br />

<strong>in</strong>corporat<strong>in</strong>g examples from the obstetrical literature.<br />

Moderator: David Stamilio, MD, MSCE, University of Pennsylvania Medical Center,<br />

Philadelphia, PA.<br />

Speakers:<br />

• Dwight J. Rouse, MD, MSPH, Center <strong>for</strong> Research <strong>in</strong> Women’s Health and<br />

Division of Maternal Fetal Medic<strong>in</strong>e, University of Alabama at Birm<strong>in</strong>gham,<br />

Birm<strong>in</strong>gham, AL.<br />

• Elizabeth Thom, PhD, George Wash<strong>in</strong>gton University Biostatistics Center,<br />

Wash<strong>in</strong>gton, DC.<br />

• Mark Klebanoff, MD, MPH, Director, Division of Epidemiology, Statistics, and<br />

Prevention Research, National Institute of Child Health and Human<br />

Development, Bethesda, MD.<br />

Proceed<strong>in</strong>gs:<br />

Dr. Stamilio provided a brief description of the course goals and <strong>in</strong>troduced the speakers<br />

and their respective topics. (5 m<strong>in</strong>utes)<br />

Dr. Rouse presented a lecture entitled “Data Monitor<strong>in</strong>g and Safety Committees<br />

(DMSC): Operations & Conflicts.” In this lecture, he described the purposes and<br />

functions of a DMSC. He described how to identify which studies need a DMSC. He also<br />

described who should comprise the DMSC and how the committee should be managed,<br />

<strong>in</strong>clud<strong>in</strong>g a charter, stopp<strong>in</strong>g rules, and guidel<strong>in</strong>es <strong>for</strong> adjudicat<strong>in</strong>g committee<br />

disagreements. (30 m<strong>in</strong>utes)<br />

Dr. Thom presented a lecture entitled “DMSC Controversies: When should a trial be<br />

stopped?” In this lecture, she described reasons <strong>for</strong> Data and Safety Monitor<strong>in</strong>g<br />

Committees to recommend stopp<strong>in</strong>g randomized cl<strong>in</strong>ical trials and highlighted the<br />

importance of establish<strong>in</strong>g reasons <strong>for</strong> stopp<strong>in</strong>g a trial be<strong>for</strong>e the planned number of<br />

patients have been recruited. She described some of the issues <strong>in</strong>volved <strong>in</strong> the decision,<br />

<strong>in</strong>clud<strong>in</strong>g statistical guidel<strong>in</strong>es. She illustrated her po<strong>in</strong>ts us<strong>in</strong>g three detailed examples<br />

drawn from the MFMU Network, <strong>in</strong>clud<strong>in</strong>g the Steroids Trial (RCT of s<strong>in</strong>gle course vs<br />

repeated weekly steroids <strong>in</strong> women at high risk of preterm delivery 24-31 weeks), the<br />

Progesterone Trial (RCT of weekly <strong>in</strong>jections of 17 α hydroxy-progesterone caproate vs


placebo <strong>in</strong> women with previous spontaneous preterm delivery), and Trichomonas<br />

vag<strong>in</strong>alis Trial (RCT of metronidazole vs placebo <strong>in</strong> women with trichomonas vag<strong>in</strong>alis).<br />

(45 m<strong>in</strong>utes)<br />

The speaker/moderator panel answered questions from the audience about the benefits<br />

and disadvantages of stopp<strong>in</strong>g a trial. There was considerable discussion and debate<br />

regard<strong>in</strong>g the circumstances <strong>in</strong> which the MFMU Network Steroids Trial was<br />

discont<strong>in</strong>ued by the DMSC. (15 m<strong>in</strong>utes)<br />

Dr. Klebanoff presented a lecture entitled “Surrogate or Composite Primary Outcomes:<br />

Benefits, Limitations & Controversies.” For both surrogate and composite outcomes he<br />

def<strong>in</strong>ed the types of outcomes, expla<strong>in</strong>ed why they are used, identified advantages and<br />

disadvantages of us<strong>in</strong>g these types of outcomes, and provided guidel<strong>in</strong>es <strong>for</strong> their use.<br />

He provided examples from the literature, <strong>in</strong>clud<strong>in</strong>g common surrogate outcomes <strong>for</strong><br />

preterm birth or preeclampsia studies and common composite neonatal outcomes <strong>for</strong><br />

prematurity studies. He also provided non-obstetric examples <strong>in</strong> which surrogate<br />

outcomes have failed or helped us. (30 m<strong>in</strong>utes)<br />

The speaker/moderator panel answered questions from the audience about select<strong>in</strong>g<br />

cl<strong>in</strong>ically mean<strong>in</strong>gful surrogate or composite outcomes <strong>for</strong> studies <strong>in</strong> reproductive<br />

epidemiology. (15 m<strong>in</strong>utes)<br />

Dr. Stamilio made conclud<strong>in</strong>g remarks and <strong>in</strong>vited attendees to provide feedback on this<br />

session and topic suggestions <strong>for</strong> future <strong>for</strong>ums. Comments can be directed to Dr.<br />

Stamilio via email ( dstamilio@obgyn.upenn.edu ). (5 m<strong>in</strong>utes)<br />

Total time: 2 hours 25 m<strong>in</strong>utes

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