Gastrointestinal endoscopy · 1998
Diagnostic yield and cost-effectiveness of endoscopy in chronic human immunodeficiency virus-related diarrhea.
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Bini E J, Cohen J
Аннотация
BACKGROUND: Endoscopy is commonly performed in patients with chronic human immunodeficiency virus (HIV)-related diarrhea after negative stool studies. The aim of this study was to determine the diagnostic yield and cost-effectiveness of endoscopy in this setting.
METHODS: Consecutive HIV-infected patients with chronic unexplained diarrhea who were referred for diagnostic endoscopy were identified. Patient charts, pathology reports, and endoscopy records were reviewed.
RESULTS: A total of 479 endoscopic procedures were performed in 307 patients. A pathogen was identified in 147 patients (47.9%); cytomegalovirus was the most frequent organism found (21.5%). The average cost of identifying a pathogen by endoscopy was $3822.94. Colonoscopy had a greater diagnostic yield than flexible sigmoidoscopy (38.7% vs. 22.4%, p = 0.009) and was more cost-effective. The yield of upper endoscopy was 29.6%. In patients with a CD4 count of less than 100/mm3, endoscopy had a higher diagnostic yield (62.8% vs. 8.3%, p < 0.0001) and a lower cost of identifying a pathogen ($2943.92 vs. $21,583.51) than in those with higher CD4 counts.
CONCLUSIONS: Endoscopy frequently identifies a pathogen in HIV-related chronic diarrhea. Colonoscopy is the most cost-effective procedure. Endoscopic evaluation has a significantly higher diagnostic yield and is considerably more cost-effective in patients with a CD4 count of less than 100/mm3 than in those with higher CD4 counts.
METHODS: Consecutive HIV-infected patients with chronic unexplained diarrhea who were referred for diagnostic endoscopy were identified. Patient charts, pathology reports, and endoscopy records were reviewed.
RESULTS: A total of 479 endoscopic procedures were performed in 307 patients. A pathogen was identified in 147 patients (47.9%); cytomegalovirus was the most frequent organism found (21.5%). The average cost of identifying a pathogen by endoscopy was $3822.94. Colonoscopy had a greater diagnostic yield than flexible sigmoidoscopy (38.7% vs. 22.4%, p = 0.009) and was more cost-effective. The yield of upper endoscopy was 29.6%. In patients with a CD4 count of less than 100/mm3, endoscopy had a higher diagnostic yield (62.8% vs. 8.3%, p < 0.0001) and a lower cost of identifying a pathogen ($2943.92 vs. $21,583.51) than in those with higher CD4 counts.
CONCLUSIONS: Endoscopy frequently identifies a pathogen in HIV-related chronic diarrhea. Colonoscopy is the most cost-effective procedure. Endoscopic evaluation has a significantly higher diagnostic yield and is considerably more cost-effective in patients with a CD4 count of less than 100/mm3 than in those with higher CD4 counts.