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Gastroenterology Research and Practice
Volume 2012, Article ID 518718, 7 pages
Research Article

Capsule Retentions and Incomplete Capsule Endoscopy Examinations: An Analysis of 2300 Examinations

1Department of Medicine, Karolinska Institute, Stockholm Söder Hospital, 118 83 Stockholm, Sweden
2Department of Gastroenterology and Hepatology, Karolinska University Hospital, 141 86 Stockholm, Sweden
3Department of Gastroenterology, Ersta Hospital, 116 91 Stockholm, Sweden
4Department of Medicine, Danderyd Hospital, 182 88 Stockholm, Sweden

Received 25 May 2011; Revised 19 July 2011; Accepted 31 July 2011

Academic Editor: Marco Pennazio

Copyright © 2012 Charlotte M. Höög et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Aim. To evaluate capsule endoscopy in terms of incomplete examinations and capsule retentions and to find risk factors for these events. Material and Methods. This retrospective and consecutive study includes data from 2300 capsule enteroscopy examinations, performed at four different hospitals in Stockholm, Sweden from 2003 to 2009. Results. The frequency of incomplete examinations was 20%. Older age, male gender, suspected, and known Crohn's disease were risk factors for an incomplete examination. The PillCam capsule had the highest rate of completed examinations. Capsule retention occurred in 1.3% ( 𝑛 = 3 1 ). Risk factors for capsule retention were known Crohn's disease and suspected tumor. Complications of capsule retention were acute obstructive symptoms in six patients and one death related to complications after acute surgical capsule retrieval. Conclusion: Capsule endoscopy is considered a safe procedure, although obstructive symptoms and serious complications due to capsule retention can be found in a large series of patients.