CC BY-NC-ND 4.0 · Endosc Int Open 2021; 09(07): E1032-E1038
DOI: 10.1055/a-1393-5469
Original article

Simple feedback of colonoscopy performance improved the number of adenomas per colonoscopy and serrated polyp detection rate

Osamu Toyoshima
1  Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
2  Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
,
Shuntaro Yoshida
1  Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
2  Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
,
Toshihiro Nishizawa
1  Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
3  Department of Gastroenterology and Hepatology, International University of Health and Welfare, Chiba, Japan
,
Tadahiro Yamakawa
1  Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
,
Toru Arano
1  Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
4  Department of Gastroenterology, The Fraternity Memorial Hospital, Tokyo, Japan
,
Yoshihiro Isomura
1  Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
5  Department of Gastroenterology, Kyoundo Hospital, Tokyo, Japan
,
Takamitsu Kanazawa
1  Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
6  Department of Gastrointestinal Surgery, JR Tokyo General Hospital, Tokyo, Japan
,
Hidehiko Ando
7  Gastroenterology, Ando Family Clinic, Tokyo, Japan
,
Yosuke Tsuji
2  Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
,
Kazuhiko Koike
2  Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
› Author Affiliations

Abstract

Background and study aims High-quality endoscopy requires improvement of not only the adenoma detection rate (ADR) but also the serrated polyp (SP) detection rate and the mean number of adenomas per positive procedure (MAP +). We evaluated whether a simple feedback of colonoscopy performance improves those quality indicators using propensity-score matching.

Patients and methods Eleven endoscopists were evaluated regarding colonoscopy performance including ADRs, SP detection rates, mean numbers of adenomas per procedure (MAPs), and MAPs + with their ranking in the clinic. Endoscopic performance was compared before and after the feedback.

Results Colonoscopies were performed for 874 patients before the feedback and 1,272 patients after the feedback. Using propensity-score matching, 803 patients before the feedback and 803 patients after the feedback were matched. ADR after the feedback was significantly higher than that before the feedback (50.8 % and 40.8 %, respectively). MAP after feedback was significantly larger than that before the feedback (0.92 and 0.69, respectively), as well as MAP + (1.96 and 1.69, respectively). Clinically significant SP detection rate was also improved from 10.0 % to 14.9 %.

Conclusions Feedback including ADR, MAP, MAP +, and clinically significant SR detection rate could improve on those quality indicators. Further studies are needed to effectively prevent colorectal cancer in colonoscopy practice.



Publication History

Received: 08 June 2020

Accepted: 26 October 2020

Publication Date:
17 June 2021 (online)

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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