Clinical Practice of Surveillance Colonoscopy according to the Classification of Colorectal Intraepithelial Neoplasia in Korea: High-grade Dysplasia/Carcinoma In Situ Versus Intramucosal Carcinoma

摘要

Background/Aims Recent guidelines strongly recommend that the interval of surveillance colonoscopy be determined according to the risk stratification obtained at index colonoscopy. However, because of the differences in perception of the classification of colorectal intraepithelial neoplasia between Asian and Western countries, there is some confusion about surveillance colonoscopy. The aim of the present study was to evaluate the clinicopathological characteristics and the interval of surveillance colonoscopy between patients with high-grade dysplasia/carcinoma in situ and those with intramucosal carcinoma. Methods From January 2003 to June 2010, 727 patients were included from 8 tertiary centers. Four hundred fifteen patients (57.1%) had high-grade dysplasia/carcinoma in situ (group A), and 312 (43.9%) had intramucosal carcinoma (group B). Clinicopathological data were reviewed retrospectively. Results Group A had a significantly more frequent family history of colorectal cancer (3.1% vs . 0.6%, P Conclusions The recommended interval of surveillance colonoscopy is not followed in Korea. More education about post-polypectomy surveillance guidelines is required.