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. 2015 Sep;48(5):399-404.
doi: 10.5946/ce.2015.48.5.399. Epub 2015 Sep 30.

Indications for Detection, Completion, and Retention Rates of Small Bowel Capsule Endoscopy Based on the 10-Year Data From the Korean Capsule Endoscopy Registry

Free PMC article

Indications for Detection, Completion, and Retention Rates of Small Bowel Capsule Endoscopy Based on the 10-Year Data From the Korean Capsule Endoscopy Registry

Yun Jeong Lim et al. Clin Endosc. .
Free PMC article


Background/aims: 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.

Keywords: Capsule endoscopy; Completion; Intestine, small; Preparation; Retention.

Conflict of interest statement

Conflicts of Interest: The authors have no financial conflicts of interest.


Fig. 1
Fig. 1. Quality of bowel preparation for capsule endoscopy. (A) Excellent, visualization of ≥90% of the mucosa, no or minimal fluid, debris, and bubbles. (B) Good, visualization of ≥90% of the mucosa, mild fluid, debris, and bubbles. (C) Fair, visualization of <90% of the mucosa, moderate fluid, debris, and bubbles. (D) Poor, visualization of <80% of the mucosa, excessive fluid, debris, and bubbles.

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