title: Indications for Detection, Completion, and Retention Rates of Small Bowel Capsule Endoscopy Based on the 10-Year Data from the Korean Capsule Endoscopy Registry.
abstract: OBJECTIVE
  Capsule endoscopy (CE) is widely used. However, CE has limitations including incomplete examination, inadequate bowel preparation, and retention. The aim of this study was to estimate the indications for and detection, completion, and retention rates of small intestine CE based on the 10-year data from the Korean Capsule Endoscopy Registry.
  
  
  METHODS
  Twenty-four hospitals participated in this study. Clinical information, such as reasons for CE, method and quality of bowel preparation, and incomplete examination and capsule retention rates, was collected and analyzed.
  
  
  RESULTS
  A total of 2,914 CEs were registered. The most common reason for CE was obscure gastrointestinal bleeding (59%). Significant lesions were detected in 66% of cases. Positive CE diagnosis occurred in 63% of cases. The preparation method did not significantly affect the quality of bowel preparation for CE. The overall incomplete rate was 33%, and was high in the elderly and those with poor bowel preparation. Capsule retention was 3% and high in patients with small bowel tumors and Crohn's disease and in children under 10 years of age.
  
  
  CONCLUSIONS
  CE is a valuable technique; while the overall detection rate is high, incompletion and retention rates are also relatively high. CE should be carefully considered in the elderly and children less than 10 years of age, as well as in patients with small bowel tumors and Crohn's disease.
authors.affiliation: Department of Internal Medicine, Dongguk University College of Medicine, Goyang, Korea.
authors.forename: Yun Jeong
authors.initials: YJ
authors.lastname: Lim
authors.affiliation: Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea.
authors.forename: Oh Young
authors.initials: OY
authors.lastname: Lee
authors.affiliation: Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Yoon Tae
authors.initials: YT
authors.lastname: Jeen
authors.affiliation: Department of Medicine, Dongguk University College of Medicine, Gyeongju, Korea.
authors.forename: Chi Yeon
authors.initials: CY
authors.lastname: Lim
authors.affiliation: Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Dae Young
authors.initials: DY
authors.lastname: Cheung
authors.affiliation: Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Jae Hee
authors.initials: JH
authors.lastname: Cheon
authors.affiliation: Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: Byong Duk
authors.initials: BD
authors.lastname: Ye
authors.affiliation: Department of Internal Medicine, Jeju National University College of Medicine, Jeju, Korea.
authors.forename: Hyun Joo
authors.initials: HJ
authors.lastname: Song
authors.affiliation: Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Jin Su
authors.initials: JS
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea.
authors.forename: Jae Hyuk
authors.initials: JH
authors.lastname: Do
authors.affiliation: Department of Internal Medicine, Ajou University School of Medicine, Suwon, Korea.
authors.forename: Kwang Jae
authors.initials: KJ
authors.lastname: Lee
authors.affiliation: Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea.
authors.forename: Ki-Nam
authors.initials: KN
authors.lastname: Shim
authors.affiliation: Department of Internal Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Dong Kyung
authors.initials: DK
authors.lastname: Chang
authors.affiliation: Department of Internal Medicine, Hallym University College of Medicine, Seoul, Korea.
authors.forename: Cheol Hee
authors.initials: CH
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea.
authors.forename: Byung Ik
authors.initials: BI
authors.lastname: Jang
authors.affiliation: Department of Internal Medicine, Inje University College of Medicine, Seoul, Korea.
authors.forename: Jeong Seop
authors.initials: JS
authors.lastname: Moon
authors.affiliation: Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Hoon Jai
authors.initials: HJ
authors.lastname: Chun
authors.affiliation: Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Myung-Gyu
authors.initials: MG
authors.lastname: Choi
authors.affiliation: Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul, Korea.
authors.forename: Jin Oh
authors.initials: JO
authors.lastname: Kim
keywords: Capsule endoscopy; Completion; Intestine, small; Preparation; Retention