Acknowledgement
We would like to express our gratitude to Chang Kyun Lee, Dong Il Park, Jae Myung Cha, Young-Eun Joo, Hyun-Soo Kim, Dong Soo Han, Dong-Kyung Chang, and Tae Il Kim, who provided invaluable advice for the development of the Korean guidelines for postpolypectomy colonoscopic surveillance.
References
- Siegel RL, Miller KD, Goding Sauer A, et al. Colorectal cancer statistics, 2020. CA Cancer J Clin 2020;70:145-164.
- Winawer SJ, Zauber AG, Ho MN, et al. Prevention of colorectal cancer by colonoscopic polypectomy: the National Polyp Study Workgroup. N Engl J Med 1993;329:1977-1981.
- Zauber AG, Winawer SJ, O'Brien MJ, et al. Colonoscopic polypectomy and long-term prevention of colorectal-cancer deaths. N Engl J Med 2012;366:687-696.
- Robertson DJ, Greenberg ER, Beach M, et al. Colorectal cancer in patients under close colonoscopic surveillance. Gastroenterology 2005;129:34-41.
- Cottet V, Jooste V, Fournel I, et al. Long-term risk of colorectal cancer after adenoma removal: a population-based cohort study. Gut 2012;61:1180-1186.
- Cha JM, Kwak MS, Kim HS, et al. Real-world national colonoscopy volume in Korea: a nationwide population-based study over 12 years. Gut Liver 2020;14:338-346.
- Rapuri S, Spencer J, Eckels D. Importance of postpolypectomy surveillance and postpolypectomy compliance to follow-up screening: review of literature. Int J Colorectal Dis 2008;23:453-459.
- Kim SY, Kim HS, Park HJ. Adverse events related to colonoscopy: global trends and future challenges. World J Gastroenterol 2019;25:190-204.
- Hong SN, Yang DH, Kim YH, et al. Korean guidelines for post-polypectomy colonoscopic surveillance. Korean J Gastroenterol 2012;59:99-117.
- Gupta S, Lieberman D, Anderson JC, et al. Recommendations for follow-up after colonoscopy and polypectomy: a consensus update by the US Multi-Society Task Force on Colorectal Cancer. Gastroenterology 2020;158:1131-1153.
- Hassan C, Antonelli G, Dumonceau JM, et al. Post-polypectomy colonoscopy surveillance: European Society of Gastrointestinal Endoscopy (ESGE) Guideline: update 2020. Endoscopy 2020;52:687-700.
- Rutter MD, East J, Rees CJ, et al. British Society of Gastroenterology/Association of Coloproctology of Great Britain and Ireland/Public Health England post-polypectomy and post-colorectal cancer resection surveillance guidelines. Gut 2020;69:201-223.
- Brouwers MC, Kho ME, Browman GP, et al. AGREE II: advancing guideline development, reporting and evaluation in health care. CMAJ 2010;182:E839-E842.
- Lowe G, Twaddle S. The Scottish Intercollegiate Guidelines Network (SIGN): an update. Scott Med J 2005;50:51-52.
- Schunemann HJ, Wiercioch W, Etxeandia I, et al. Guidelines 2.0: systematic development of a comprehensive checklist for a successful guideline enterprise. CMAJ 2014;186:E123-E142.
- Mustafa RA, Santesso N, Brozek J, et al. The GRADE approach is reproducible in assessing the quality of evidence of quantitative evidence syntheses. J Clin Epidemiol 2013;66:736-742.
- Zhang Y, Akl EA, Schunemann HJ. Using systematic reviews in guideline development: the GRADE approach. Res Synth Methods 2019;10:312-329.
- Kaminski MF, Thomas-Gibson S, Bugajski M, et al. Performance measures for lower gastrointestinal endoscopy: a European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. Endoscopy 2017;49:378-397.
- Min JK, Cha JM, Cho YK, et al. Revision of quality indicators for the Endoscopy Quality Improvement Program of the National Cancer Screening Program in Korea. Clin Endosc 2018;51:239-252.
- Rex DK, Schoenfeld PS, Cohen J, et al. Quality indicators for colonoscopy. Gastrointest Endosc 2015;81:31-53.
- Atkin W, Wooldrage K, Brenner A, et al. Adenoma surveillance and colorectal cancer incidence: a retrospective, multicentre, cohort study. Lancet Oncol 2017;18:823-834.
- Wieszczy P, Kaminski MF, Franczyk R, et al. Colorectal cancer incidence and mortality after removal of adenomas during screening colonoscopies. Gastroenterology 2020;158:875-883.
- Cross AJ, Robbins EC, Pack K, et al. Long-term colorectal cancer incidence after adenoma removal and the effects of surveillance on incidence: a multicentre, retrospective, cohort study. Gut 2020;69:1645-1658.
- He X, Hang D, Wu K, et al. Long-term risk of colorectal cancer after removal of conventional adenomas and serrated polyps. Gastroenterology 2020;158:852-861.
- Tollivoro TA, Jensen CD, Marks AR, et al. Index colonoscopy-related risk factors for postcolonoscopy colorectal cancers. Gastrointest Endosc 2019;89:168-176.
- Anderson JC, Rex DK, Robinson C, et al. Association of small versus diminutive adenomas and the risk for metachronous advanced adenomas: data from the New Hampshire Colonoscopy Registry. Gastrointest Endosc 2019;90:495-501.
- Hartstein JD, Vemulapalli KC, Rex DK. The predictive value of small versus diminutive adenomas for subsequent advanced neoplasia. Gastrointest Endosc 2020;91:614-621.
- Click B, Pinsky PF, Hickey T, et al. Association of colonoscopy adenoma findings with long-term colorectal cancer incidence. JAMA 2018;319:2021-2031.
- Vemulapalli KC, Rex DK. Risk of advanced lesions at first follow-up colonoscopy in high-risk groups as defined by the United Kingdom post-polypectomy surveillance guideline: data from a single U.S. center. Gastrointest Endosc 2014;80:299-306.
- Cubiella J, Carballo F, Portillo I, et al. Incidence of advanced neoplasia during surveillance in high- and intermediate-risk groups of the European colorectal cancer screening guidelines. Endoscopy 2016;48:995-1002.
- Laish I, Seregeev I, Naftali T, et al. Surveillance after positive colonoscopy based on adenoma characteristics. Dig Liver Dis 2017;49:1115-1120.
- Kim JY, Kim TJ, Baek SY, et al. Risk of metachronous advanced neoplasia in patients with multiple diminutive adenomas. Am J Gastroenterol 2018;113:1855-1861.
- Moon CM, Jung SA, Eun CS, et al. The effect of small or diminutive adenomas at baseline colonoscopy on the risk of developing metachronous advanced colorectal neoplasia: KASID multicenter study. Dig Liver Dis 2018;50:847-852.
- Park SK, Yang HJ, Jung YS, et al. Risk of advanced colorectal neoplasm by the proposed combined United States and United Kingdom risk stratification guidelines. Gastrointest Endosc 2018;87:800-808.
- Kim NH, Jung YS, Lee MY, et al. Risk of developing metachronous advanced colorectal neoplasia after polypectomy in patients with multiple diminutive or small adenomas. Am J Gastroenterol 2019;114:1657-1664.
- Lieberman D, Sullivan BA, Hauser ER, et al. Baseline colonoscopy findings associated with 10-year outcomes in a screening cohort undergoing colonoscopy surveillance. Gastroenterology 2020;158:862-874.
- Pinsky PF, Schoen RE. Contribution of surveillance colonoscopy to colorectal cancer prevention. Clin Gastroenterol Hepatol 2020;18:2937-2944.
- Shono T, Oyama S, Oda Y, et al. Risk stratification of advanced colorectal neoplasia after baseline colonoscopy: cohort study of 17 Japanese community practices. Dig Endosc 2020;32:106-113.
- Park SK, Hwang SW, Kim KO, et al. Risk of advanced colorectal neoplasm in patients with more than 10 adenomas on index colonoscopy: a Korean Association for the Study of Intestinal Diseases (KASID) study. J Gastroenterol Hepatol 2017;32:803-808.
- Grover S, Kastrinos F, Steyerberg EW, et al. Prevalence and phenotypes of APC and MUTYH mutations in patients with multiple colorectal adenomas. JAMA 2012;308:485-492.
- Syngal S, Brand RE, Church JM, et al. ACG clinical guideline: genetic testing and management of hereditary gastrointestinal cancer syndromes. Am J Gastroenterol 2015;110:223-262.
- Provenzale D, Gupta S, Ahnen DJ, et al. Genetic/familial high-risk assessment: colorectal version 1.2016, NCCN Clinical Practice Guidelines in Oncology. J Natl Compr Canc Netw 2016;14:1010-1030.
- Myers DJ, Arora K. Villous adenoma [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 [cited 2022 Apr 26]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470272/.
- Fairley KJ, Li J, Komar M, et al. Predicting the risk of recurrent adenoma and incident colorectal cancer based on findings of the baseline colonoscopy. Clin Transl Gastroenterol 2014;5:e64.
- van Heijningen EM, Lansdorp-Vogelaar I, Kuipers EJ, et al. Features of adenoma and colonoscopy associated with recurrent colorectal neoplasia based on a large community-based study. Gastroenterology 2013;144:1410-1418.
- Song M, Emilsson L, Bozorg SR, et al. Risk of colorectal cancer incidence and mortality after polypectomy: a Swedish record-linkage study. Lancet Gastroenterol Hepatol 2020;5:537-547.
- Saini SD, Kim HM, Schoenfeld P. Incidence of advanced adenomas at surveillance colonoscopy in patients with a personal history of colon adenomas: a meta-analysis and systematic review. Gastrointest Endosc 2006;64:614-626.
- Mahajan D, Downs-Kelly E, Liu X, et al. Reproducibility of the villous component and high-grade dysplasia in colorectal adenomas <1 cm: implications for endoscopic surveillance. Am J Surg Pathol 2013;37:427-433.
- Foss FA, Milkins S, McGregor AH. Inter-observer variability in the histological assessment of colorectal polyps detected through the NHS Bowel Cancer Screening Programme. Histopathology 2012;61:47-52.
- Amersi F, Agustin M, Ko CY. Colorectal cancer: epidemiology, risk factors, and health services. Clin Colon Rectal Surg 2005;18:133-140.
- Macaron C, Vu HT, Lopez R, et al. Risk of metachronous polyps in individuals with serrated polyps. Dis Colon Rectum 2015;58:762-768.
- Erichsen R, Baron JA, Hamilton-Dutoit SJ, et al. Increased risk of colorectal cancer development among patients with serrated polyps. Gastroenterology 2016;150:895-902.
- Holme O, Bretthauer M, Eide TJ, et al. Long-term risk of colorectal cancer in individuals with serrated polyps. Gut 2015;64:929-936.
- Lu FI, van Niekerk de W, Owen D, et al. Longitudinal outcome study of sessile serrated adenomas of the colorectum: an increased risk for subsequent right-sided colorectal carcinoma. Am J Surg Pathol 2010;34:927-934.
- Symonds E, Anwar S, Young G, et al. Sessile serrated polyps with synchronous conventional adenomas increase risk of future advanced neoplasia. Dig Dis Sci 2019;64:1680-1685.
- Anderson JC, Butterly LF, Robinson CM, et al. Risk of metachronous high-risk adenomas and large serrated polyps in individuals with serrated polyps on index colonoscopy: data from the New Hampshire Colonoscopy Registry. Gastroenterology 2018;154:117-127.
- Teriaky A, Driman DK, Chande N. Outcomes of a 5-year follow-up of patients with sessile serrated adenomas. Scand J Gastroenterol 2012;47:178-183.
- Schreiner MA, Weiss DG, Lieberman DA. Proximal and large hyperplastic and nondysplastic serrated polyps detected by colonoscopy are associated with neoplasia. Gastroenterology 2010;139:1497-1502.
- Lazarus R, Junttila OE, Karttunen TJ, et al. The risk of metachronous neoplasia in patients with serrated adenoma. Am J Clin Pathol 2005;123:349-359.
- Yoon JY, Kim HT, Hong SP, et al. High-risk metachronous polyps are more frequent in patients with traditional serrated adenomas than in patients with conventional adenomas: a multicenter prospective study. Gastrointest Endosc 2015;82:1087-1093.
- Payne SR, Church TR, Wandell M, et al. Endoscopic detection of proximal serrated lesions and pathologic identification of sessile serrated adenomas/polyps vary on the basis of center. Clin Gastroenterol Hepatol 2014;12:1119-1126.
- Ensari A, Bilezikci B, Carneiro F, et al. Serrated polyps of the colon: how reproducible is their classification? Virchows Arch 2012;461:495-504.
- Khalid O, Radaideh S, Cummings OW, et al. Reinterpretation of histology of proximal colon polyps called hyperplastic in 2001. World J Gastroenterol 2009;15:3767-3770.
- Wong NA, Hunt LP, Novelli MR, et al. Observer agreement in the diagnosis of serrated polyps of the large bowel. Histopathology 2009;55:63-66.
- Bustamante-Balen M, Bernet L, Cano R, et al. Assessing the reproducibility of the microscopic diagnosis of sessile serrated adenoma of the colon. Rev Esp Enferm Dig 2009;101:258-264.
- Farris AB, Misdraji J, Srivastava A, et al. Sessile serrated adenoma: challenging discrimination from other serrated colonic polyps. Am J Surg Pathol 2008;32:30-35.
- Hiraoka S, Kato J, Fujiki S, et al. The presence of large serrated polyps increases risk for colorectal cancer. Gastroenterology 2010;139:1503-1510.
- Lash RH, Genta RM, Schuler CM. Sessile serrated adenomas: prevalence of dysplasia and carcinoma in 2139 patients. J Clin Pathol 2010;63:681-686.
- Imperiale TF, Glowinski EA, Lin-Cooper C, et al. Five-year risk of colorectal neoplasia after negative screening colonoscopy. N Engl J Med 2008;359:1218-1224.
- Lieberman DA, Rex DK, Winawer SJ, et al. Guidelines for colonoscopy surveillance after screening and polypectomy: a consensus update by the US Multi-Society Task Force on Colorectal Cancer. Gastroenterology 2012;143:844-857.
- Lim HM, Kim ER, Kim JY, et al. Association between non-diminutive hyperplastic polyps and synchronous advanced colorectal neoplasms. Digestion 2011;83:54-59.
- Pereyra L, Zamora R, Gomez EJ, et al. Risk of metachronous advanced neoplastic lesions in patients with sporadic sessile serrated adenomas undergoing colonoscopic surveillance. Am J Gastroenterol 2016;111:871-878.
- Burnett-Hartman AN, Chubak J, Hua X, et al. The association between colorectal sessile serrated adenomas/polyps and subsequent advanced colorectal neoplasia. Cancer Causes Control 2019;30:979-987.
- Pohl H, Srivastava A, Bensen SP, et al. Incomplete polyp resection during colonoscopy-results of the complete adenoma resection (CARE) study. Gastroenterology 2013;144:74-80.
- Belderbos TD, Leenders M, Moons LM, et al. Local recurrence after endoscopic mucosal resection of nonpedunculated colorectal lesions: systematic review and meta-analysis. Endoscopy 2014;46:388-402.
- Pellise M, Burgess NG, Tutticci N, et al. Endoscopic mucosal resection for large serrated lesions in comparison with adenomas: a prospective multicentre study of 2000 lesions. Gut 2017;66:644-653.
- Tate DJ, Desomer L, Klein A, et al. Adenoma recurrence after piecemeal colonic EMR is predictable: the Sydney EMR recurrence tool. Gastrointest Endosc 2017;85:647-656.
- Komeda Y, Watanabe T, Sakurai T, et al. Risk factors for local recurrence and appropriate surveillance interval after endoscopic resection. World J Gastroenterol 2019;25:1502-1512.
- Klein A, Tate DJ, Jayasekeran V, et al. Thermal ablation of mucosal defect margins reduces adenoma recurrence after colonic endoscopic mucosal resection. Gastroenterology 2019;156:604-613.
- Jang HW, Park SJ, Hong SP, et al. Risk factors for recurrent high-risk polyps after the removal of high-risk polyps at initial colonoscopy. Yonsei Med J 2015;56:1559-1565.
- Park SK, Kim NH, Jung YS, et al. Risk of developing advanced colorectal neoplasia after removing high-risk adenoma detected at index colonoscopy in young patients: a KASID study. J Gastroenterol Hepatol 2016;31:138-144.
- Martinez ME, Baron JA, Lieberman DA, et al. A pooled analysis of advanced colorectal neoplasia diagnoses after colonoscopic polypectomy. Gastroenterology 2009;136:832-841.
- Jacobs ET, Gupta S, Baron JA, et al. Family history of colorectal cancer in first-degree relatives and metachronous colorectal adenoma. Am J Gastroenterol 2018;113:899-905.
- Lieberman DA, Weiss DG, Harford WV, et al. Five-year colon surveillance after screening colonoscopy. Gastroenterology 2007;133:1077-1085.
- Chung SJ, Kim YS, Yang SY, et al. Five-year risk for advanced colorectal neoplasia after initial colonoscopy according to the baseline risk stratification: a prospective study in 2452 asymptomatic Koreans. Gut 2011;60:1537-1543.
- Lee JK, Jensen CD, Levin TR, et al. Long-term risk of colorectal cancer and related death after adenoma removal in a large, community-based population. Gastroenterology 2020;158:884-894.
- Loberg M, Kalager M, Holme O, et al. Long-term colorectal-cancer mortality after adenoma removal. N Engl J Med 2014;371:799-807.
- Hassan C, Gimeno-Garcia A, Kalager M, et al. Systematic review with meta-analysis: the incidence of advanced neoplasia after polypectomy in patients with and without low-risk adenomas. Aliment Pharmacol Ther 2014;39:905-912.
- Dube C, Yakubu M, McCurdy BR, et al. Risk of advanced adenoma, colorectal cancer, and colorectal cancer mortality in people with low-risk adenomas at baseline colonoscopy: a systematic review and meta-analysis. Am J Gastroenterol 2017;112:1790-1801.
- Atkin W, Brenner A, Martin J, et al. The clinical effectiveness of different surveillance strategies to prevent colorectal cancer in people with intermediate-grade colorectal adenomas: a retrospective cohort analysis, and psychological and economic evaluations. Health Technol Assess 2017;21:1-536.
- Atkin WS, Morson BC, Cuzick J. Long-term risk of colorectal cancer after excision of rectosigmoid adenomas. N Engl J Med 1992;326:658-662.
- Noshirwani KC, van Stolk RU, Rybicki LA, et al. Adenoma size and number are predictive of adenoma recurrence: implications for surveillance colonoscopy. Gastrointest Endosc 2000;51(4 Pt 1):433-437.
- Jung YS, Park DI, Kim WH, et al. Risk of advanced colorectal neoplasia according to the number of high-risk findings at index colonoscopy: a Korean Association for the Study of Intestinal Disease (KASID) Study. Dig Dis Sci 2016;61:1661-1668.
- Zhao S, Wang S, Pan P, et al. Magnitude, risk factors, and factors associated with adenoma miss rate of tandem colonoscopy: a systematic review and meta-analysis. Gastroenterology 2019;156:1661-1674.
- Mankaney G, Rouphael C, Burke CA. Serrated polyposis syndrome. Clin Gastroenterol Hepatol 2020;18:777-779.
- Rex DK, Ahnen DJ, Baron JA, et al. Serrated lesions of the colorectum: review and recommendations from an expert panel. Am J Gastroenterol 2012;107:1315-1329.
- Tan YY, Tay GS, Wong YJ, et al. Clinical features and predictors of dysplasia in proximal sessile serrated lesions. Clin Endosc 2021;54:578-588.
- Tran AH, Man Ngor EW, Wu BU. Surveillance colonoscopy in elderly patients: a retrospective cohort study. JAMA Intern Med 2014;174:1675-1682.
- Gutta A, Gromski MA. Endoscopic management of post-polypectomy bleeding. Clin Endosc 2020;53:302-310.