The utility of a novel colonoscope with retroflexion for colorectal endoscopic submucosal dissection

Background and study aims The PCF-H290TI/L produced by Olympus is a novel colonoscope equipped with some advantageous features for endoscopic treatment. It is expected to improve the potential for retroflexion and overall endoscope operability, which can reduce the difficulty of performing colorecta...

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Main Authors: Hidenori Tanaka, Shiro Oka, Shinji Tanaka, Katsuaki Inagaki, Yuki Okamoto, Kenta Matsumoto, Kazuki Boda, Ken Yamashita, Kyoku Sumimoto, Yuki Ninomiya, Nana Hayashi, Kazuaki Chayama
Format: Article
Language:English
Published: Georg Thieme Verlag KG 2019-01-01
Series:Endoscopy International Open
Online Access:http://www.thieme-connect.de/DOI/DOI?10.1055/a-0810-0567
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author Hidenori Tanaka
Shiro Oka
Shinji Tanaka
Katsuaki Inagaki
Yuki Okamoto
Kenta Matsumoto
Kazuki Boda
Ken Yamashita
Kyoku Sumimoto
Yuki Ninomiya
Nana Hayashi
Kazuaki Chayama
author_facet Hidenori Tanaka
Shiro Oka
Shinji Tanaka
Katsuaki Inagaki
Yuki Okamoto
Kenta Matsumoto
Kazuki Boda
Ken Yamashita
Kyoku Sumimoto
Yuki Ninomiya
Nana Hayashi
Kazuaki Chayama
author_sort Hidenori Tanaka
collection DOAJ
description Background and study aims The PCF-H290TI/L produced by Olympus is a novel colonoscope equipped with some advantageous features for endoscopic treatment. It is expected to improve the potential for retroflexion and overall endoscope operability, which can reduce the difficulty of performing colorectal ESD. The aim of this study was to evaluate the utility of the novel colonoscope in colorectal ESD. Methods Three hundred and forty-eight consecutive colorectal lesions resected via ESD between June 2014 and January 2017 at Hiroshima University Hospital were included in the retroflexion ability analysis. We compared the retroflexion potential of PCF-H290TI to that of a conventional endoscope. Two hundred and twenty-seven colorectal lesions located in the left-sided colon and resected with ESD between April 2009 and February 2018 were enrolled in the treatment outcome analysis. Treatment outcomes using PCF-H290TI compared to those of the conventional colonoscope, and outcomes of the PCF-H290TI with retroflexion compared to those of the conventional colonoscope without retroflexion were evaluated by propensity score matching. Results The retroflexion rate with the PCF-H290TI was 76 %, which was significantly higher than the 44 % rate with the conventional scope. Endoscope operability was better and dissection speed was faster when using the PCF-H290TI with retroflexion compared to the conventional colonoscope without retroflexion. There were no significant differences between the groups in en bloc resection rate and adverse events. Conclusion Compared to the conventional colonoscope, the PCF-H290TI/L made it easier to perform ESD via a retrograde approach regardless of tumor location, and thus may be useful for performing colorectal ESD.
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spelling doaj.art-bd4925568bc943e6ad1b054080a44c662022-12-22T01:12:33ZengGeorg Thieme Verlag KGEndoscopy International Open2364-37222196-97362019-01-010702E130E13710.1055/a-0810-0567The utility of a novel colonoscope with retroflexion for colorectal endoscopic submucosal dissectionHidenori Tanaka0Shiro Oka1Shinji Tanaka2Katsuaki Inagaki3Yuki Okamoto4Kenta Matsumoto5Kazuki Boda6Ken Yamashita7Kyoku Sumimoto8Yuki Ninomiya9Nana Hayashi10Kazuaki Chayama11Department of Endoscopy, Hiroshima University Hospital, Hiroshima, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, JapanDepartment of Endoscopy, Hiroshima University Hospital, Hiroshima, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, JapanDepartment of Endoscopy, Hiroshima University Hospital, Hiroshima, JapanDepartment of Endoscopy, Hiroshima University Hospital, Hiroshima, JapanDepartment of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, JapanBackground and study aims The PCF-H290TI/L produced by Olympus is a novel colonoscope equipped with some advantageous features for endoscopic treatment. It is expected to improve the potential for retroflexion and overall endoscope operability, which can reduce the difficulty of performing colorectal ESD. The aim of this study was to evaluate the utility of the novel colonoscope in colorectal ESD. Methods Three hundred and forty-eight consecutive colorectal lesions resected via ESD between June 2014 and January 2017 at Hiroshima University Hospital were included in the retroflexion ability analysis. We compared the retroflexion potential of PCF-H290TI to that of a conventional endoscope. Two hundred and twenty-seven colorectal lesions located in the left-sided colon and resected with ESD between April 2009 and February 2018 were enrolled in the treatment outcome analysis. Treatment outcomes using PCF-H290TI compared to those of the conventional colonoscope, and outcomes of the PCF-H290TI with retroflexion compared to those of the conventional colonoscope without retroflexion were evaluated by propensity score matching. Results The retroflexion rate with the PCF-H290TI was 76 %, which was significantly higher than the 44 % rate with the conventional scope. Endoscope operability was better and dissection speed was faster when using the PCF-H290TI with retroflexion compared to the conventional colonoscope without retroflexion. There were no significant differences between the groups in en bloc resection rate and adverse events. Conclusion Compared to the conventional colonoscope, the PCF-H290TI/L made it easier to perform ESD via a retrograde approach regardless of tumor location, and thus may be useful for performing colorectal ESD.http://www.thieme-connect.de/DOI/DOI?10.1055/a-0810-0567
spellingShingle Hidenori Tanaka
Shiro Oka
Shinji Tanaka
Katsuaki Inagaki
Yuki Okamoto
Kenta Matsumoto
Kazuki Boda
Ken Yamashita
Kyoku Sumimoto
Yuki Ninomiya
Nana Hayashi
Kazuaki Chayama
The utility of a novel colonoscope with retroflexion for colorectal endoscopic submucosal dissection
Endoscopy International Open
title The utility of a novel colonoscope with retroflexion for colorectal endoscopic submucosal dissection
title_full The utility of a novel colonoscope with retroflexion for colorectal endoscopic submucosal dissection
title_fullStr The utility of a novel colonoscope with retroflexion for colorectal endoscopic submucosal dissection
title_full_unstemmed The utility of a novel colonoscope with retroflexion for colorectal endoscopic submucosal dissection
title_short The utility of a novel colonoscope with retroflexion for colorectal endoscopic submucosal dissection
title_sort utility of a novel colonoscope with retroflexion for colorectal endoscopic submucosal dissection
url http://www.thieme-connect.de/DOI/DOI?10.1055/a-0810-0567
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