Rates of repeated colonoscopies to clean the colon from low-risk and high-risk adenomas: Results from the EPoS trials

Objective High-quality colonoscopy (adequate bowel preparation, whole-colon visualisation and removal of all neoplastic polyps) is a prerequisite to start polyp surveillance, and is ideally achieved in one colonoscopy. In a large multinational polyp surveillance trial, we aimed to investigate clinical practice variation in number of colonoscopies needed to enrol patients with low-risk and high-risk adenomas in polyp surveillance. Design We retrieved data of all patients with low-risk adenomas (one or two tubular adenomas