Piecemeal Resection and Advanced Histology Independently Predict Local Recurrence After Colorectal Snare-based Endoscopic Resection: a Time-to-event Cohort Study

Inclusion Criteria: * Age ≥ 18 years at the time of polypectomy; * Underwent snare polypectomy, with or without the use of thermal energy (cold snare or hot snare), performed during the study period (2023-2025); * Procedure performed at a participating tertiary center, ensuring technical and record standardization; * Availability of histopathological examination of the resected lesion, allowing for adequate histological characterization; * Performance of at least one documented surveillance colonoscopy, with evaluation of the previous resection site; * Adequate recording of clinical and endoscopic variables necessary for analysis (lesion size, location, resection technique, etc.); Exclusion Criteria: * Patients undergoing techniques other than loop polypectomy, such as: Endoscopic submucosal dissection (ESD), advanced mucosal resection not based on conventional loop, primary surgical resection of the lesion; * Absence of follow-up colonoscopy, making it impossible to assess the primary outcome (local recurrence); * Incomplete clinical, endoscopic, or histopathological data that prevent adequate classification of study variables; * Invasive lesions beyond the mucosa (invasive cancer with deep submucosal invasion) that have been referred for immediate surgical treatment without endoscopic follow-up; * Loss to follow-up before the first surveillance colonoscopy.