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  • Title: Complication and local recurrence rate after endoscopic resection of large high-risk colorectal adenomas of ≥3 cm in size.
    Author: Seidel J, Färber E, Baumbach R, Cordruwisch W, Böhmler U, Feyerabend B, Faiss S.
    Journal: Int J Colorectal Dis; 2016 Mar; 31(3):603-11. PubMed ID: 26754070.
    Abstract:
    PURPOSE: Endoscopic resection is a widely used technique for treatment of large colorectal adenomas, but few data are available including only lesions larger than ≥2 cm. The aim of this study is to evaluate the complication and recurrence rate after endoscopic resection of high-risk colorectal adenomas ≥3 cm in size. METHODS: Retrospective analysis of a prospectively maintained database of patients undergoing polypectomy of large colorectal polyps of ≥3 cm. RESULTS: In 341 patients, 360 colorectal adenomas with a mean size of 3.9 cm were resected endoscopically. In 25 patients, a complication including 22 delayed bleedings (6.5%) and three perforations (0.9%) occurred. Single-variate analysis showed an increasing risk of complications for larger adenomas (3.9 vs. 4.6 cm; p ≤ 0.05). Two hundred twelve patients with 224 adenomas had undergone at least one documented follow-up endoscopy with a medium follow-up period of 16 months. In 95 resected lesions (42.4%), a residual adenoma occurred in the first follow-up colonoscopy (n = 88, 92.6%) or a recurrent adenoma occurred after at least one negative follow-up colonoscopy (n = 7, 7.4%). In multivariate analysis, risk factors were lesion size, sessile growth pattern, and the performing endoscopist. The complication and recurrence rate correlated inversely between endoscopists. CONCLUSIONS: The present study is the largest study showing complication and recurrence rates after colorectal polypectomy of advanced colorectal adenomas of ≥3 cm in size. Polyp size was identified as the most important risk factor for complications. For the first time, this study shows that the complication rate after colorectal polypectomy of large adenomas is correlated inversely with the residual and/or recurrence rate.
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