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Background and study aims : Cold snare polypectomy (CSP) is not recommended for the resection of pedunculated colorectal polyp. The aim of this study was to examine the adequacy of CSP compared to hot snare polypectomy (HSP) for the complete resection of pedunculated polyps with heads ≤ 1 cm in diameter.Patients and methods : This was a retrospective study of a cohort of consecutive outpatients who had resection of pedunculated polyps with heads 6-10 mm in diameter using either dedicated CSP or HSP from 2014 through 2019. The primary outcome measure was occurrence of delayed bleeding. Secondary outcome measures included total procedure time, en bloc resection rate, immediate bleeding, and number of clips used.Results : 415 patients with 444 eligible polyps were enrolled; the CSP group (363 patients; 386 polyps) and HSP group (52 patients; 58 polyps). Patient characteristics, polyp characteristics and en bloc resection rate were similar between groups. The mean total procedure time and mean number (range) of hemostatic clips/patient used were significantly lower with CSP than with HSP (18± 8 min vs. 25± 9 min, P&lt;0.001; 1.1 ± 0.6 (1-3) vs.3.1 ± 1.6 (1-5), respectively, P&lt;0.001). Delayed bleeding occurred significantly less frequently in the CSP, 0% (0/363 vs.3.8% (2/52) in the HSP group (P&lt;0.001), although immediate bleeding was significantly higher in CSP than HSP (84% (325/386) vs. 12% (7/58), P&lt;0.001).Conclusion : Pedunculated colorectal polyps with heads ≤ 1 cm can be removed using CSP, which has several advantages over HSP.

Pedunculated colorectal polyps with heads ≤ 1 cm in diameter can be resected using cold snare polypectomy