| Theme |
Precancerous Conditions and Cancer High-risk Lesions in the Colorectum |
| Title |
Post Resection Surveillance for Colorectal Adenoma and Carcinoma |
| Author |
Tadahiko Masaki |
Department of Surgery, Kyorin University School of Medicine |
| Author |
Hiroyoshi Matsuoka |
Department of Surgery, Kyorin University School of Medicine |
| Author |
Takaaki Kobayashi |
Department of Surgery, Kyorin University School of Medicine |
| Author |
Kazunori Sato |
Department of Surgery, Kyorin University School of Medicine |
| Author |
Masanori Sugiyama |
Department of Surgery, Kyorin University School of Medicine |
| [ Summary ] |
In United States, the "National Polyp Study
" was conducted in the 1980s. The study centered on colonoscopic surveillance after polypectomies. Evidence-based guidelines were proposed in 2006, based on polyp number, size, and grade of dysplasia. In Japan, a randomized controlled trial is now being conducted, and the final results of this study will be obtained within a few years. In relation to surveillance after colorectal cancer resection, scientific evidence is still lacking. In addition, randomized controlled trials are now being conducted in Europe. Although an example of a surveillance protocol has been proposed by the Japanese Society for Cancer of the Colon and Rectum, we should keep in mind that it is not currently based on high-quality evidence. |