Comparative study of a responsive insertion technology (RIT) colonoscope versus a variable-stiffness colonoscope.

Background And Objectives: recently, Olympus developed a new prototype (XCF-Q180AY2L) with responsive insertion technology (RIT), which besides the still known variable stiffness technology, included a passive bending section and a new high force insertion tube. Our objective was to investigate whether the use of this prototype could ease colonoscope insertion, increasing the cecal intubation rate, and/or shortening the cecal intubation time.

Material And Methods: the study was designed as a prospective observational study in 305 consecutive patients from a colo-rectal cancer screening program.