New guidelines and studies update colorectal cancer surveillance and management

New clinical guidelines and research findings are reshaping the management of colorectal cancer risks and surveillance protocols. The American College of Gastroenterology (ACG) has released new evidence-based guidelines for hereditary adenomatous polyposis syndromes. These syndromes, caused by germline variants in genes such as APC or AXIN2, carry high morbidity and mortality risks. The guidelines focus on improving identification, diagnosis, and management through risk assessment, genetic testing, and timely surgical or endoscopic intervention.

In a separate development, results from the European Polyp Surveillance Trial (EPoS) suggest that delaying the first surveillance colonoscopy by three to five years after the removal of high-risk polyps, such as advanced adenomas, does not increase the risk of developing colorectal cancer or mortality. The study, which included 10,799 patients across eight European countries, provides new data for clinical guidelines regarding the frequency of follow-up procedures for patients considered at higher risk of developing new lesions.