Diagnostic Yield of Microscopic Colitis in Open Access Endoscopy Center

Derek Ellingson, Ronald Miick, Faye Chang, Robert Hillard, Abhishek Choudhary, Imran Ashraf, Matthew Bechtold, Alberto Diaz-Arias

Abstract


Background: The diagnostic yield in open access endoscopy has been evaluated which generally support the effectiveness and efficiency of open access endoscopy. With a few exceptions, diagnostic yield studies have not been performed in open access endoscopy for more specific conditions. Therefore, we conducted a study to determine the efficiency of open access endoscopy in the detection of microscopic colitis as compared to traditional referral via a gastroenterologist.

Methods: A retrospective search of the pathology database at the University of Missouri for specimens from a local open access endoscopy center was conducted via SNOMED code using the terms: “microscopic”, “lymphocytic”, “collagenous”, “spirochetosis”, “focal active colitis”, “melanosis coli” and “histopathologic” in the diagnosis line for the time period between January 1, 2004 and May 25, 2006. Specimens and colonoscopy reports were reviewed by a single pathologist.

Results: Of 266 consecutive patients with chronic diarrhea and normal colonoscopies, the number of patients with microscopic disease are as follows: Lymphocytic colitis (n = 12, 4.5%), collagenous colitis (n = 17, 6.4%), focal active colitis (n = 15, 5.6%), and spirochetosis (n = 2, 0.4%).

Conclusions: The diagnostic yield of microscopic colitis in this study of an open access endoscopy center does not differ significantly from that seen in major medical centers. In terms of diagnostic yield, open access endoscopy appears to be as effective in diagnosing microscopic colitis.




Gastroenterol Res. 2011;4(4):139-142
doi: https://doi.org/10.4021/gr339e

Keywords


Microscopic colitis; Open access endoscopy; Diagnostic yield; Lymphocytic; Collagenous

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