Volume 17, Issue 9 pp. 1901-1906
Original Article

Clinical characteristics of ulcerative colitis associated with primary sclerosing cholangitis in Korea

Byong Duk Ye MD

Byong Duk Ye MD

Department of Gastroenterology, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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Suk-Kyun Yang MD

Corresponding Author

Suk-Kyun Yang MD

Department of Gastroenterology, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, 388-1 Pungnap-dong, Songpa-gu, Seoul, 138-736, KoreaSearch for more papers by this author
Sun-Jin Boo MD

Sun-Jin Boo MD

Department of Gastroenterology, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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Yun Kyung Cho MS

Yun Kyung Cho MS

Department of Gastroenterology, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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Dong-Hoon Yang MD

Dong-Hoon Yang MD

Department of Gastroenterology, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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Soon Man Yoon MD

Soon Man Yoon MD

Department of Gastroenterology, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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Kyung Jo Kim MD

Kyung Jo Kim MD

Department of Gastroenterology, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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Jeong-Sik Byeon MD

Jeong-Sik Byeon MD

Department of Gastroenterology, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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Seung-Jae Myung MD

Seung-Jae Myung MD

Department of Gastroenterology, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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Chang Sik Yu MD

Chang Sik Yu MD

Department of Colon and Rectal Surgery, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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Sung-Cheol Yun PhD

Sung-Cheol Yun PhD

Division of Biostatistics, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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Jin-Ho Kim MD

Jin-Ho Kim MD

Department of Gastroenterology, Center for Medical Research and Information, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

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First published: 16 December 2010
Citations: 12

Abstract

Background:

Primary sclerosing cholangitis (PSC) is well known as one of the extraintestinal manifestations of ulcerative colitis (UC). However, the prevalence of PSC in UC patients together with the clinical characteristics and outcomes of UC associated with PSC (UC-PSC) are not clear in Asians.

Methods:

We retrospectively reviewed the medical records of UC patients who were registered and followed up at the Asan Medical Center. The prevalence of PSC in UC and the clinical features of UC-PSC compared with matched UC without PSC were investigated.

Results:

A total of 1849 patients diagnosed with UC between July 1977 and September 2009 were reviewed. Among these, 21 UC-PSC patients (1.1%) were identified. The cumulative probability of PSC after diagnosis of UC was 0.71% after 1–5 years, 1.42% after 10 years, 2.59% after 15 years, and 3.35% after 20–25 years. Compared with 63 matched UC alone patients, UC-PSC showed pancolitis (95.2%), rectal sparing (38.1%), and backwash ileitis (42.9%) more frequently (P < 0.001). During follow-up, three of 21 UC-PSC patients (14.3%) were diagnosed with colorectal neoplasia and three patients (14.3%) died of PSC-associated complications. UC-PSC patients were associated with increased probability of colorectal neoplasia development (P = 0.036) and a trend toward increased mortality compared with the UC alone group.

Conclusions:

The prevalence of PSC in Korean UC patients appears to be lower than that of Western patients. Similar to Caucasians, UC-PSC shows unique colonoscopic features and is associated with more frequent colorectal neoplasia development and poor prognosis in Korea. (Inflamm Bowel Dis 2010;)

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