Copyright
©The Author(s) 2017. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Mar 7, 2017; 23(9): 1645-1656
Published online Mar 7, 2017. doi: 10.3748/wjg.v23.i9.1645
Published online Mar 7, 2017. doi: 10.3748/wjg.v23.i9.1645
Outcomes of gastrointestinal defect closure with an over-the-scope clip system in a multicenter experience: An analysis of a successful suction method
Hideki Kobara, Hirohito Mori, Shintaro Fujihara, Noriko Nishiyama, Taiga Chiyo, Tsutomu Masaki, Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
Takayoshi Yamada, Department of Gastroenterology, Kochi Health Sciences Center, Kochi 781-8555, Japan
Masao Fujiwara, Keiichi Okano, Yasuyuki Suzuki, Department of Gastroenterological Surgery, Faculty of Medicine, Kagawa University, Kagawa Prefecture 760-0016, Japan
Masayuki Murota, Department of Gastroenterology, Sakaide City Hospital, Kagawa Prefecture 762-8550, Japan
Yoshitaka Ikeda, Department of Surgery, Ehime Rosai Hospital, Ehime Prefecture 792-0863, Japan
Makoto Oryu, Department of Gastroenterology, Kagawa Saiseikai Hospital, Kagawa 761-0793, Japan
Mohamed AboEllail, Department of Gynecology, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
Author contributions: Kobara H and Mori H were responsible for the study concept and design; Yamada T, Murota M, Ikeda Y and Oryu M were responsible for the acquisition of the data; Nishiyama N and Chiyo T were responsible for the analysis and interpretation of the data; Fujiwara M, Okano K and Suzuki Y supplied the material; Fujihara S was responsible for the statistical analysis; AboEllail M was responsible for drafting the manuscript; and Masaki T was responsible for the study supervision.
Institutional review board statement: This study was reviewed and approved by the Ethics Committee of the Kagawa Medical University Hospital and each institution.
Informed consent statement: Patients were not required to give informed consent to the study because the analysis used anonymous clinical data that were obtained after each patient agreed to treatment by written consent. For full disclosure, the details of the study are published on the home page of the Kagawa Medical University Hospital and each institution.
Data sharing statement: Technical appendix, statistical code, and dataset available from the corresponding author at kobara@med.kagawa-u.ac.jp. Informed consent form participants for data sharing was not obtained but the presented data are anonymized and risk of identification is low.
Conflict-of-interest statement: The authors have no conflicts of interest to report.
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: Hideki Kobara, MD, PhD, Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki, Kita, Kagawa 761-0793, Japan. kobara@med.kagawa-u.ac.jp
Telephone: +81-87-8912156 Fax: +81-87-8912158
Received: November 30, 2016
Peer-review started: December 2, 2016
First decision: December 28, 2016
Revised: January 12, 2017
Accepted: February 7, 2017
Article in press: February 8, 2017
Published online: March 7, 2017
Peer-review started: December 2, 2016
First decision: December 28, 2016
Revised: January 12, 2017
Accepted: February 7, 2017
Article in press: February 8, 2017
Published online: March 7, 2017
Core Tip
Core tip: The efficacy of over-the-scope clips (OTSCs) for gastrointestinal defects has been widely known. However, few large studies with more than 50 cases have been performed. Additionally, an optimal strategy for selecting a suction method, which is a critical factor of OTSC success, is needed. This study, with a large number of cases and a multicenter design, demonstrated excellent outcomes of OTSC and revealed which type of suction method was appropriate for particular situations according to the following characteristics: defect size, duration since onset, and indication. The individualized choice of the suction method is the most important factor determining OTSC success.