Outpatient endoscopic polypectomy

AIM: to estimate the efficacy and safety of outpatient polypectomy of epithelial benign tumors of the colon.
PATIENTS AND METHODS: the prospective cohort study included 809 patients with colon polyps removed by cold loop polypectomy (CSP), hot loop polypectomy (HSP) and hot loop polypectomy with injection (HSP + injection). Intraand postoperative complications were assessed.
RESULTS: a total of 2115 colon polyps 2–20 mm (0.5 [0.4; 0,7] mm) were removed. No intraoperative complications occurred. Prophylactic clipping was performed in 6,5% of cases with a significant higher rate for larger neoplasms: 10–20 mm — 77/324 (23.8%), 6–9 mm — 43/618 (7%), 2–5 mm — 17/1173 (1.4%), p < 0.001 in the omnibus test and all pairwise comparisons. The frequency of delayed complications (within 3 days) was 0.49% (4/809 patients) IIIa according to the Clavien-Dindo classification and 0.19% (4/2115 removed neoplasms).
CONCLUSION: removal of benign epithelial neoplasms of the colon ≤ 20 mm without admission in a 24-hour hospital is associated with a low rate (0.19%) of delayed bleeding (within 3 days), so it is necessary to remove polyps less than 10 mm during screening colonoscopy.

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