Related Experiment Video
Updated: May 7, 2026
Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
Published on: August 9, 2016
Surveillance after Endoscopic Resection for Colorectal Tumors: A Comprehensive Review
Kinichi Hotta1, Takahisa Matsuda2, Yasushi Sano3
1Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan.
Background:
The goal of surveillance after the endoscopic resection of colorectal tumors is to reduce colorectal cancer (CRC) incidence and mortality. Considering the effective use of the limited endoscopic capacity and the cost of surveillance, it is desirable to develop a surveillance program that is as minimal as possible. In Europe (European Society of Gastrointestinal Endoscopy [ESGE]) and the USA (Multi-Society Task Force [MSTF]), after the results of the National Polyp Study (NPS) were established, guidelines were developed that stratified risk based on initial endoscopy, and surveillance programs for each risk group were proposed. More than 10 years later, the "colonoscopy screening and surveillance guidelines" were developed with the basic principle of "aiming for zero CRC deaths during surveillance, bowel preservation, and emphasis on patient quality of life" as the guideline principles in Japan.
Summary:
Randomized controlled trials to evaluate the appropriate surveillance intervals after endoscopic resection of colorectal tumors, the NPS, the Nottingham Study, and the Japan Polyp Study (JPS), are summarized. The ESGE, USMSTF, and Japanese guidelines compared low-risk adenoma, high-risk adenoma, advanced neoplasia, piecemeal resection, and serrated lesions by category.
Key Messages:
Surveillance guidelines based on risk stratification were developed in Japan. Guidelines are meaningful only when they are effectively utilized in clinical practice. They must also be revised based on new evidence. It is hoped that new knowledge will be accumulated, especially in Japan, on topics that are currently lacking.
Background:
The goal of surveillance after the endoscopic resection of colorectal tumors is to reduce colorectal cancer (CRC) incidence and mortality. Considering the effective use of the limited endoscopic capacity and the cost of surveillance, it is desirable to develop a surveillance program that is as minimal as possible. In Europe (European Society of Gastrointestinal Endoscopy [ESGE]) and the USA (Multi-Society Task Force [MSTF]), after the results of the National Polyp Study (NPS) were established, guidelines were developed that stratified risk based on initial endoscopy, and surveillance programs for each risk group were proposed. More than 10 years later, the "colonoscopy screening and surveillance guidelines" were developed with the basic principle of "aiming for zero CRC deaths during surveillance, bowel preservation, and emphasis on patient quality of life" as the guideline principles in Japan.
Summary:
Randomized controlled trials to evaluate the appropriate surveillance intervals after endoscopic resection of colorectal tumors, the NPS, the Nottingham Study, and the Japan Polyp Study (JPS), are summarized. The ESGE, USMSTF, and Japanese guidelines compared low-risk adenoma, high-risk adenoma, advanced neoplasia, piecemeal resection, and serrated lesions by category.
Key Messages:
Surveillance guidelines based on risk stratification were developed in Japan. Guidelines are meaningful only when they are effectively utilized in clinical practice. They must also be revised based on new evidence. It is hoped that new knowledge will be accumulated, especially in Japan, on topics that are currently lacking.
Related Concept Videos
01:26Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
01:29Endoscopic Procedures I: Esophagogastroduodenoscopy
During an EGD, the endoscope can be used to:
01:25Endoscopic Procedures II: Colonoscopy
01:28Endoscopic Procedures III: Video Capsule Endoscopy
01:26Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
01:26Endoscopic Procedures V: ERCP
Patient...