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Changes in performance of small bowel capsule endoscopy based on nationwide data from a Korean Capsule Endoscopy Registry

Korean Journal of Internal Medicine 2020년 35권 4호 p.889 ~ 896
김수환, 임윤정, 박준석, 심기남, 양동훈, 천재영, 김진수, 이현석, 전훈재,
소속 상세정보
김수환 ( Kim Su-Hwan ) - Seoul Metropolitan Government Seoul National University Boramae Medical Center Department of Internal Medicine
임윤정 ( Lim Yun-Jeong ) - Dongguk University Ilsan Hospital Department of Internal Medicine
박준석 ( Park Jun-Seok ) - Soonchunhyang University College of Medicine Department of Internal Medicine
심기남 ( Shim Ki-Nam ) - Ewha Womans University School of Medicine Department of Internal Medicine
양동훈 ( Yang Dong-Hoon ) - University of Ulsan College of Medicine Department of Internal Medicine
천재영 ( Chun Jae-Young ) - Seoul National University College of Medicine Department of Internal Medicine
김진수 ( Kim Jin-Su ) - Catholic University College of Medicine Department of Internal Medicine
이현석 ( Lee Hyun-Seok ) - Kyungpook National University School of Medicine Department of Internal Medicine
전훈재 ( Chun Hoon-Jai ) - Korea University College of Medicine Department of Internal Medicine

Abstract


Background/Aims: Capsule endoscopy (CE) is widely used for the diagnosis of small bowel diseases. The clinical performance and complications of small bowel CE, including completion rate, capsule retention rate, and indications, have been previously described in Korea. This study aimed at estimating the recent changes in clinical performance and complications of small bowel CE based on 17-year data from a Korean Capsule Endoscopy Registry.

Methods: CE registry data from 35 hospitals were retrospectively analyzed. Clinical information, including completion rate, capsule retention rate, and indications, was collected and analyzed. In addition, the most recent 5-year data for CE examinations were compared with the previous 12-year data.

Results: A total of 4,650 CE examinations were analyzed. The most common indication for CE was obscure gastrointestinal bleeding (OGIB). The overall incomplete examination rate was 16% and the capsule retention rate was 3%. Crohn’s disease was a risk factor for capsule retention. Inadequate bowel preparation was significantly associated with capsule retention and incomplete examination. An indication other than OGIB was a risk factor for incomplete examination. A recent increasing trend of CE diagnosis of Crohn’s disease was observed. The most recent 5-year incomplete examination rate for CE examinations decreased compared with that of the previous 12 years.

Conclusions: The 17-year data suggested that CE is a useful and safe tool for diagnosing small bowel diseases. The incomplete examination rate of CE decreased with time, and OGIB was consistently the main indication for CE. Inadequate bowel preparation was significantly associated with capsule retention and incomplete examination.

키워드

Capsule endoscopy; Intestine, small; Retention; Bowel preparation

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