Retroflexion, a costless endoscopic maneuver, increases adenoma detection rate in the ascending colon.

Background: Missed polyps during colonoscopy are considered an important factor for interval cancer appearance, especially in the ascending colon (AC). We evaluated the contribution of retroflexion to polyp and adenoma detection in the AC.

Methods: This prospective observational study included consecutive patients who underwent a complete colonoscopy between 06/2017 and 06/2018.