Postpolypectomy Colonoscopy Surveillance Guidelines: Predictive Accuracy for Advanced Adenoma at 4 Years

摘要

Guidelines for surveillance colonoscopy after a colon polyp is removed recommend more frequent surveillance if an advanced adenoma is found at baseline. Laiyemo and colleagues studied 1905 patients with an adenoma at baseline colonoscopy. Each had follow-up colonoscopy at 1 year and 4 years. Overall, 6.6% had an advanced adenoma—considered high risk for cancer—at 4 years. Advanced adenoma rates were 9% and 5% in patients with high- and low-risk adenomas at baseline colonoscopy, respectively. The characteristics of an adenoma are not a reliable guide to the probability of recurrence of an advanced adenoma.