Retrospective Study
Copyright ©The Author(s) 2017. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Endosc. Aug 16, 2017; 9(8): 411-416
Published online Aug 16, 2017. doi: 10.4253/wjge.v9.i8.411
Usefulness of the Hook knife in flexible endoscopic myotomy for Zenker’s diverticulum
Olivier Rouquette, Armando Abergel, Aurélien Mulliez, Laurent Poincloux
Olivier Rouquette, Armando Abergel, Laurent Poincloux, Department of Digestive and Hepatobiliary Diseases, CHU Estaing Clermont-Ferrand, 63003 Clermont-Ferrand, France
Armando Abergel, Laurent Poincloux, ISIT, UMR 6284 CNRS Université d’Auvergne, 63003 Clermont-Ferrand, France
Aurélien Mulliez, Biostatistics Unit, DRCI, CHU Gabriel Montpied Clermont-Ferrand, 63003 Clermont-Ferrand, France
Author contributions: Rouquette O, Mulliez A and Poincloux L collected and analyzed the data; Rouquette O and Poincloux L drafted the manuscript; Abergel A revised the manuscript for important intellectual content; all authors have read and approved the final version to be published.
Institutional review board statement: The study was reviewed and approved by the CHU Clermont-Ferrand Institutional Review Board, reference 2016 CE/91.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: All authors disclosed no financial relationships relevant to this publication.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Olivier Rouquette, MD, Department of Digestive and Hepatobiliary Diseases, CHU Estaing Clermont-Ferrand, 1, place Lucie et Raymond Aubrac, 63003 Clermont-Ferrand, France. orouquette@chu-clermontferrand.fr
Telephone: +33-4-73750523 Fax: +33-4-73750524
Received: February 2, 2017
Peer-review started: February 7, 2017
First decision: April 18, 2017
Revised: May 13, 2017
Accepted: May 30, 2017
Article in press: May 31, 2017
Published online: August 16, 2017
Processing time: 189 Days and 12.9 Hours
Core Tip

Core tip: Zenker’s diverticulum can cause uncomfortable symptoms such as dysphagia, regurgitation and cough, and sometimes weight loss or aspiration pneumonia. Soft diverticuloscope-assisted flexible myotomy is used worldwide and has proven to be safe and efficient. In terms of adverse events, perforation remains the major concern. The most effective tool for performing myotomy in this setting has yet to be determined. Here we treated 24 patients with the Hook knife, resulting in 91.7% overall success, a 13% recurrence rate, and only 2 mild adverse events reported.