Published online Jan 14, 2015. doi: 10.3748/wjg.v21.i2.593
Peer-review started: April 24, 2014
First decision: August 6, 2014
Revised: August 21, 2014
Accepted: September 29, 2014
Article in press: September 29, 2014
Published online: January 14, 2015
Core tip: Polyps located on the proximal side of colon folds can be challenging to detect. The new RetroView™ colonoscope has a short turning radius that allows a retroflexed view of the colon during withdrawal. In this bench colon model study, the RetroView™ colonoscope detected more proximally-located, “hidden” polyps during retroflexed withdrawal, than a conventional colonoscope withdrawn in standard fashion. The highest polyp detection rate was achieved when the RetroView™ colonoscope was withdrawn in retroflexion followed by standard withdrawal. This combination of standard and retroflexed withdrawal holds promise for optimizing polyp detection in patients undergoing screening colonoscopy.