Evidence map›Paper›PMID 42384005›Full record

SynthesisJournal of gastroenterology and hepatology2026

Patient-Level Predictors of Procedural Success in Colon Capsule Endoscopy: A Systematic Review and Meta-Analysis.

Ian Io Lei, Prashanth Vuggumudi, Kiara Mcdonnell, Ramesh P Arasaradnam, Anastasios Koulaouzidis

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Journal of gastroenterology and hepatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Ian Io LeiInstitute of Precision Diagnostics & Translational Medicine, University Hospital of Coventry and Warwickshire, Coventry, UK.
Prashanth VuggumudiDepartment of Gastroenterology, Royal Berkshire Hospital, Reading, UK.
Kiara McdonnellDepartment of Gastroenterology, Royal Berkshire Hospital, Reading, UK.ORCID https://orcid.org/0000-0001-5596-7006
Ramesh P ArasaradnamInstitute of Precision Diagnostics & Translational Medicine, University Hospital of Coventry and Warwickshire, Coventry, UK.
Anastasios KoulaouzidisFaculty of Health Sciences, University of Southern Denmark, Odense, Denmark.ORCID https://orcid.org/0000-0002-2248-489X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundColon capsule endoscopy (CCE) is an increasingly used noninvasive alternative to colonoscopy for colonic investigation. However, its widespread adoption is constrained by suboptimal completion rates (CR), inadequate bowel preparation, and a high follow-up endoscopy rate (FER), collectively undermining cost-effectiveness and service efficiency. Evidence on patient-level predictors of these outcomes remains fragmented.

methodsA systematic review and meta-analysis were conducted following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. MEDLINE, Embase, CENTRAL, and PubMed Central were searched. Patient-level factors associated with completion rate, bowel preparation adequacy, successful CCE, and FER were extracted. Random-effects meta-analyses were performed to pool unadjusted and adjusted odds ratios.

resultsTen studies comprising 4374 participants met inclusion criteria. The pooled completion rate was 73% (95% CI 68%-78%), and pooled bowel preparation adequacy was 72% (95% CI 60%-81%). Chronic opioid use was consistently associated with reduced performance, demonstrating lower completion rates (unadjusted OR 0.54, 95% CI 0.40-0.73; adjusted OR 0.55, 95% CI 0.28-1.09) and poorer bowel preparation adequacy (adjusted OR 0.49, 95% CI 0.26-0.96). Diabetes was independently associated with inadequate bowel preparation (adjusted OR 0.40, 95% CI 0.36-0.45). Increasing age showed borderline statistical significance but minimal clinical impact. The pooled follow-up endoscopy rate was 61% (95% CI 56%-67%).

conclusionCCE performance is strongly influenced by patient-level factors, particularly chronic opioid use and diabetes. Targeted patient selection is the most immediately actionable strategy to improve efficiency, whereas individual participant data meta-analyses are needed to enable robust risk stratification of CCE.

Indexed as

Capsule EndoscopyColonoscopyAgedAnalgesics, OpioidCatharticsFemaleHumansMaleMiddle AgedAnalgesics, OpioidCatharticsbowel preparationcapsule endoscopyCCEcompletion ratefollow‐up endoscopy ratepatient factorspredictorssuccessful CCE

Identifiers

PMID42384005
PMCPMC13432264

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.