Retention rate in small-bowel capsule endoscopy

We read the recent article by Rezapour et al1 with great interest. The authors reported a video capsule endoscopy (VCE) retention rate of 3.6% in suspected inflammatory bowel disease (IBD) and 8.2% in established IBD. However, it appears that the study design precluded the inclusion of several recent publications, which may have shifted the pooled ratios for VCE retention downward. We note that Rezapour et al1 excluded from the main analysis studies in which the patency capsule or cross-sectional imaging was used.

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