biostudies-literatureUnknown21(1)Kim SYKorean Society of Gastrointestinal EndoscopyColonoscopic polypectomy is effective in decreasing the incidence and mortality of colorectal cancer (CRC). Premalignant polyps discovered during colonoscopy are associated with the risk of metachronous advanced neoplasia. Postpolypectomy surveillance is the most important method for managing advanced metachronous neoplasia. A more efficient and evidence-based guideline for postpolypectomy surveillance is required because of the limited medical resources and concerns regarding colonoscopy complications. In these consensus guidelines, an analytic approach was used to address all reliable evidence to interpret the predictors of CRC or advanced neoplasia during surveillance colonoscopy. The key recommendations state that the high-risk findings for metachronous CRC following polypectomy are as follows: adenoma ≥10 mm in size; 3 to 5 (or more) adenomas; tubulovillous or villous adenoma; adenoma containing high-grade dysplasia; traditional serrated adenoma; sessile serrated lesion containing any grade of dysplasia; serrated polyp of at least 10 mm in size; and 3 to 5 (or more) sessile serrated lesions. More studies are needed to fully comprehend the patients who are most likely to benefit from surveillance colonoscopy and the ideal surveillance interval to prevent metachronous CRC.Intestinal research20-42https://www.ebi.ac.uk/biostudies/studies/S-EPMC9911266biostudies-literatureKorean Guidelines for Postpolypectomy Colonoscopic Surveillance: 2022 revised edition.PMC9911266Kim HKKim SYOh EHCho JYYoon SMChoi MYKorean Society of Gastrointestinal EndoscopyKim JWPark SYKorean Association for the Study of Intestinal DiseasesChun JPark SJeon SRLee OYLee MSJung YBoo SJByeon JSKwak MSKorean Society of GastroenterologyPark SKBaek DHNam SJfalseKorean Guidelines for Postpolypectomy Colonoscopic Surveillance: 2022 revised edition.Colonoscopic polypectomy is effective in decreasing the incidence and mortality of colorectal cancer (CRC). Premalignant polyps discovered during colonoscopy are associated with the risk of metachronous advanced neoplasia. Postpolypectomy surveillance is the most important method for managing advanced metachronous neoplasia. A more efficient and evidence-based guideline for postpolypectomy surveillance is required because of the limited medical resources and concerns regarding colonoscopy complications. In these consensus guidelines, an analytic approach was used to address all reliable evidence to interpret the predictors of CRC or advanced neoplasia during surveillance colonoscopy. The key recommendations state that the high-risk findings for metachronous CRC following polypectomy are as follows: adenoma ≥10 mm in size; 3 to 5 (or more) adenomas; tubulovillous or villous adenoma; adenoma containing high-grade dysplasia; traditional serrated adenoma; sessile serrated lesion containing any grade of dysplasia; serrated polyp of at least 10 mm in size; and 3 to 5 (or more) sessile serrated lesions. More studies are needed to fully comprehend the patients who are most likely to benefit from surveillance colonoscopy and the ideal surveillance interval to prevent metachronous CRC.2023-01-01T00:00:00Z2023 Jan2026-05-29T05:28:59.999Z2025-02-18T23:44:14.51ZS-EPMC99112663675104310.5217/ir.2022.00096