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Clinical Characteristics of Microscopic Colitis in Korea: Prospective Multicenter Study by KASID

Authors
 Young Sook Park ; Dae Hyun Ba다 ; You Sun Kim ; Sang Woo Kim ; Yong Woo Chung ; Young-Ho Kim ; Dong Soo Han ; Chnag Hwan Choi ; Byung Ik Jang ; Sung-Ae Jung ; Suk-Kyun Yang ; Joo Sung Kim ; Won Ho Kim 
Citation
 Gut and Liver, Vol.5(2) : 181~186, 2011 
Journal Title
 Gut and Liver 
ISSN
 1976-2283 
Issue Date
2011
Abstract
BACKGROUND/AIMS: Microscopic colitis (MC) encompasses collagenous and lymphocytic colitis and is characterized by chronic diarrhea. In cases of MC, colonic mucosae are macroscopically normal, and diagnostic histopathological features are observed only upon microscopic examination. We designed a prospective multicenter study to determine the clinical features, pathological distribution in the colon and prevalence of MC in Korea. METHODS: We prospectively enrolled patients having watery diarrhea no more than 3 times a day between March 2008 and February 2009. We obtained patient histories and performed colonoscopies with random biopsies at each colon segment. RESULTS: A total of 100 patients with chronic diarrhea were enrolled for a normal colonoscopy and stool exam. MC was observed in 22 patients (22%) (M:F 1.2:1; mean age, 47.5 years). Of those 22 patients, 18 had lymphocytic colitis and 4 had collagenous colitis. The entire colon was affected in only 3 cases (13.6%), the ascending colon in 6 cases (27.2%), the transverse colon in 3 cases (13.6%), and the left colon in 3 cases (13.6%). More than 2 segments were affected in 7 cases (31.8%). Nonsteroidal anti-inflammatory drug-associated MCs were observed in 4 cases (18.2%), 3 of which showed improved diarrhea symptoms following discontinuation of the medication. Frequently associated symptoms were abdominal pain and weight loss. Autoimmune diseases were observed in 4 cases (18.2%). Half of the 22 patients with MC improved with conservative care by loperamide or probiotics. CONCLUSIONS: In a prospective multicenter study of Korean patients with chronic diarrhea, the frequency of MC was found to be approximately 20%, similar to the percentage observed in Western countries. Therefore, the identification of MC is important for the adequate management of Korean patients with chronic diarrhea.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/94311
DOI
10.5009/gnl.2011.5.2.181
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Internal Medicine
Yonsei Authors
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