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Colon capsule endoscopy: what factors predict an incomplete examination?
Mariana Souto1,2,3, Ana Isabel Ferreira1,2,3, Tiago Lima Capela1,2,3
1Gastroenterology Department, Unidade Local de Saúde do Alto Ave, Guimarães, Portugal.
Scandinavian Journal of Gastroenterology
|February 7, 2026
Summary
Obesity and constipation are key factors leading to incomplete colon capsule endoscopy (CCE) studies. Addressing these patient factors may improve CCE completion rates.
Area of Science:
- Gastroenterology
- Medical Devices
- Diagnostic Procedures
Background:
- Colon capsule endoscopy (CCE) is vital for patients with incomplete conventional colonoscopy.
- Successful CCE relies on quality bowel preparation and capsule excretion within battery life.
Purpose of the Study:
- To identify clinical and demographic factors associated with incomplete CCE after failed conventional colonoscopy.
Main Methods:
- Retrospective single-center study of 197 patients undergoing CCE post-incomplete colonoscopy.
- Collected data included demographics and clinical factors like obesity and constipation.
- Complete CCE defined by capsule excretion or hemorrhoidal visualization within battery time.
Main Results:
- Overall CCE completion rate was 67.5%.
- Adequate bowel preparation achieved in 73.6% of cases.
- Obesity (OR 5.328) and constipation (OR 2.999) were significant independent predictors of incomplete CCE.
Conclusions:
- Obesity and constipation are identified as significant risk factors for incomplete CCE.
- Optimizing bowel preparation protocols for at-risk patients may enhance CCE success rates.
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