The useful of colonoscopic insertion technique using endoscope position detection unit (UPD)

Abstract

Consecutive 165 patients were enrolled in this study. All patients underwent colonoscopic examination with (n＝75) or without UPD (n＝93) .
We investigated patient's 1) SD passage time, 2) insertion time to cecum (min) , 3) colonoscopy completion rate (%) , in order to assess the UPD's usefulness and effectiveness. And, we used Kudo's classification in the level of colonoscope insertion, and classified in five steps of 1 - 5.
And we classified patients difficulty and colonic curve in three steps of the pattern A, B and C. A result that the level 1 group by use of UPD shortend SD passing time in the pattern A, and elevated completion rates in the pattern B. The level 2 group by use of UPD shorted SD passing time in the all pattern, and elevated completion rates in the pattern B. Trainee's leaning curve revealed that time to cecum tended to be shortened when UPD was used. It was suggested that in trainee, UPD system may help to learn accurate colonoscope insertion technique.