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P OSTER<br />

A BSTRACTS<br />

then awoke spontaneously and continued to wretch. His mental status<br />

was at baseline and he reported feeling well as he was taken to the ED<br />

for further evaluation. EKG was notable for first degree AV block<br />

(PR interval 224ms, unchanged from prior). Results of a CBC, serum<br />

chemistries, Echocardiogram (done one month prior), and abdominal<br />

CT scan were normal. He was able to eat and drink and had no further<br />

syncopal episodes during 8 hours of observation in the ED. Our<br />

clinical impression was reflex mediated vasovagal syncope secondary<br />

to significant upper gastrointestinal distress. Despite this benign explanation<br />

of his syncope, the ED physician admitted him to a telemetry<br />

bed. Hours later he displayed multiple episodes of complete heart<br />

block (CHB), with one episode resulting in loss of consciousness followed<br />

by vomiting.A temporary pacing wire was placed followed by a<br />

permanent pacemaker the next day. He experienced complete resolution<br />

of his GI symptoms following pacemaker implantation.<br />

Conclusion: Current practice guidelines emphasize the preeminence<br />

of an accurate history in determining the etiology of syncope.<br />

This patient’s atypical presentation of CHB mimicked reflex mediated<br />

vasovagal syncope. His age and remote history of MI led to his<br />

admission, though it seems likely that many physicians would have<br />

discharged this patient. This case demonstrates the importance of<br />

maintaining a high index of suspicion for atypical presentations of arrhythmic<br />

syncope in very elderly patients with cardiac risk factors.<br />

D14 Encore Presentation<br />

A fatal case of treatment resistant C. difficile colitis.<br />

K. S. Malik, M. Reisner ( AGS-F ). internal medicine, jersey city medical<br />

center, Jersey City, NJ.<br />

Introduction: C.diff colitis is frequently associated with previous<br />

antibiotic use especially in the elderly population and those with recent<br />

exposure to hospitals, nursing homes and daycare centers. The<br />

“National Prevalence Study of C.Diff in U.S. Healthcare Facilities”<br />

indicates that 13 out of every 1,000 inpatients were either infected or<br />

colonized with C.Diff. Mortality rate as high as 25% in elderly patients<br />

who are frail and immuno-compromised.<br />

Recurrence occurs in approximately 25 percent of cases. Oral<br />

vancomycin is the preferred therapy for severe or refractory cases.<br />

Combination of oral vancomycin and intravenous metronidazole for<br />

patients of C. diff with ileus is shown to be very effective. Efficacy of<br />

this treatment in geriatric population is still questionable.<br />

We present a treatment resistant case of C.diff colitis.<br />

Case Description: Ms L was a 95 year old female with a history<br />

of dementia and recent appendectomy who presented with C.diff colitis<br />

to the hospital. Her colitis resolved after 10 days course of<br />

Metronidazole.<br />

Approximately 4 weeks later Ms. L developed watery diarrhea,<br />

five to six times a day associated with weight loss. There were no<br />

symptoms of nausea, vomiting, abdominal pain, fever, chills or rash.<br />

Upon arrival in ER, she was thermodynamically stable, Normal<br />

physical exam with leukocytosis of 16. Patient was admitted and<br />

Metronidazole restarted.<br />

Stool for C.diff toxin was positive. Within 48 hours, her condition<br />

deteriorated. WBC rose from 16 to 50 and progressed to septic shock.<br />

Ms L was transferred to MICU and aggressive intravenous fluid therapy<br />

with vasopressors and oral vancomycin was added to the regimen.<br />

Subsequently she developed diffuse abdominal tenderness.<br />

WBC further increased to 112 with lactic acidosis of 11. Despite the<br />

classic presentation of C.Diff, leukocytosis of 112 prompted an evaluation<br />

for acute leukemia, and a flow cytometry was done which was<br />

normal.<br />

CAT scan of the abdomen revealed diffuse pseudomembranous<br />

colitis; developed multiorgan failure, ARDS and deceased within 96<br />

hours of admission.<br />

Conclusion:<br />

C. diff colitis is associated with significant mortality in the geriatrics<br />

patients. Extensive leukocytosis is associated with poor prognosis.<br />

Decreased immunity and multiple co morbidities are responsible<br />

for this increased incidence in the elderly population. The clinical syndrome<br />

of chronic C. diff and the best treatment options in this population<br />

group needs to be further investigated.<br />

D15<br />

Diabetes is Associated with Functional Impairments in HIV+ Older<br />

Adults.<br />

K. Shah, 1 T. N. Hilton, 2 A. E. Luque, 1 W. J. Hall. 1 1. Medicine,<br />

University of Rochester, Rochester, NY; 2. Physical therapy, Ithaca<br />

College, Rochester, NY.<br />

Supported By: This abstract was supported in part by the University<br />

of Rochester Developmental Center for AIDS Research (NIH<br />

P30AI078498)and John A Hartford Foundation Center for<br />

Excellence in Geriatric Medicine and Training.<br />

BACKGROUND: The prevalence of glucose intolerance and<br />

diabetes in HIV+ patients has increased dramatically following the<br />

widespread use of highly active antiretroviral therapy and the improved<br />

survival rate in this population. The risk is further exacerbated<br />

as this population ages. Although it is known that HIV+ patients<br />

are at increased risk of frailty, little is known regarding the<br />

impact of diabetes on physical function in HIV+ older adults (HOA).<br />

PURPOSE: To explore the nature of functional impairment in HOA<br />

with glucose intolerance status as measured by having diabetes.<br />

METHODS: Twenty HOA (mean age=60 y; 30% female) participated<br />

in a case-control study at an urban HIV clinic. Ten HOA with<br />

diabetes were matched to ten HOA controls without diabetes on age,<br />

gender and BMI. Subjective and objective measures of functional status<br />

were evaluated using the Physical Performance Test (PPT),<br />

graded treadmill test, isokinetic dynamometer, gait speed, balance<br />

and functional status questionnaires (FSQ). Body composition was<br />

evaluated using DXA. Muscle quality was evaluated by determining<br />

the ratio of leg strength to leg lean mass. RESULTS: The two groups<br />

were comparable in duration of HIV, CD4 count and viral load. Compared<br />

with matched controls, the case patients had lower scores in<br />

PPT, peak aerobic power, and FSQ (p

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