Surveillance after colorectal polypectomy; comparison between Japan and U.S

Shinwa Tanaka, Daisuke Obata, Ryo Chinzei, Shiei Yoshida, Tuyoshi Sanuki, Yoshinori Morita, Masaru Yoshida, Tsuyoshi Fujita, Takashi Toyonaga, Hiromu Kutsumi, Hideto Inokuchi, Takeshi Azuma
2011 The Kobe journal of medical sciences  
Recently, early detection and early treatment of the colorectal cancer have been enabled by the improvement of endoscopic diagnosis and introduction of new techniques. In Japan, although Japan Polyp Study is running, there is no standard strategy concerning the post-polypectomy colonoscopic surveillance yet. Post-polypectomy colonoscopic surveillance is so far entrusted to each institute or each gastroenterologist at present. To analyze the present states of the surveillance after polypectomy
more » ... after polypectomy in Japan, we performed questionary survey and compared them with the results in U.S. and U.S. Multisociety Task Force on colorectal Cancer. A simple random sample of 132 doctors who engaged in a digestive organ disease in plural institutes was obtained. Many doctors recommend surveillance every around 1 year regardless of the kind of the polyp. Doctors in Japan tend to recommend postpolypectomy colonoscopic surveillance more frequently than that recommended U.S. Multisociety Task Force on colorectal Cancer. Furthermore in all types of polyps except for 12 mm tubular adenoma with high grade dysplasia, the majority of doctors in Japan recommend post-polypectomy colonoscopic surveillance more frequently than American doctors. Significant difference was found in surveillance of hyperplastic polyp among doctors with 1 to 5 years experience and those with more than 6 years. It has been shown that surveillance intervals varies substantially in each doctor. The agreement of the surveillance program in Japan is necessary to standardize the strategy for the post-polypectomy surveillance of the colon.
pmid:21937868 fatcat:xdlxpbtge5hxbo4nv2tcqyr4wa