Hood colonoscopy in trainees: a useful adjunct to improve the performance.

Background: The use of a transparent hood to improve colonoscopic performance has recently been proposed.

Aims: The purpose of this study was to evaluate whether using the hood might improve the cecal intubation rate, cecal intubation time, number of attempts needed to intubate the ileo-cecal valve, and polyp detection rate in trainees.

Methods: Patients undergoing colonoscopy (n = 378) were randomized in two groups, one studied with hood colonoscopy (n = 179) and the other (n = 199) with standard examination.