ArticleClinical endoscopy2026
Effect of external evaluation and training on the incomplete resection rate in cold snare polypectomies for colonic lesions <10 mm: a prospective Spanish study (POLIPEVA).
Article in Clinical endoscopy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04636619 (Clinical Trial Evaluating the Effect of External Evaluation and Training on the Incomplete Resection Rate in Cold Snare Polypectomies in Colonic Lesions <10 Mm), which is not on this map. Cited by 1 paper.
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The trial behind it
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Clinical Trial Evaluating the Effect of External Evaluation and Training on the Incomplete Resection Rate in Cold Snare Polypectomies in Colonic Lesions <10 Mm (POLIPEVA Study)
Who cites it
1 citing paper in PubMed.
- Improving cold snare polypectomy quality: are online educational interventions sufficient?Clinical endoscopy · 2026Article
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15 authors.
Funding
Abstract
backgroundCold snare polypectomy (CSP) technique for polyps <10 mm varies widely among endoscopists. This study aimed to evaluate an online educational intervention for incomplete resections.
methodsThis multicenter trial was performed between 2021 and 2024. After a baseline assessment of incomplete resection rates for CSP of lesions <10 mm was completed, participants undertook a 1-hour online course led by an expert senior endoscopist. A second assessment was performed following course completion. Resections were evaluated using two marginal biopsies obtained after CSP, assessed by a single pathologist blinded to polyp histology. Follow-up was conducted by telephone 4 weeks after colonoscopy.
resultsA total of 29 endoscopists participated in the baseline assessment, yielding a baseline 4.8% incomplete resection rate, with a median individual rate of 4.3% (interquartile range [IQR], 2.9%-5.7%; range, 0%-15.6%). Thirteen endoscopists completed the course and participated in the second study phase, which included 1,271 polyps in phase 1 and 826 in phase 2. No significant improvement in incomplete resection rate was observed (4.8% in phase 1 vs. 4.0% in phase 2; difference, 0.8%; 95% confidence interval [CI], -1.1% to 2.6%; p=0.4). Among 3,087 polypectomies, intraprocedural bleeding occurred in 288 (9.3%) cases; most were self-limited, with only 45 (1.5%) requiring clipping. Delayed bleeding was observed in five (0.5%) patients, four of whom had mild bleeding and one severe. No perforations were observed.
conclusionsThe utility of online endoscopic technique courses appears limited. CSP demonstrates an excellent safety profile (ClinicalTrials.gov number: NCT04636619).
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