Copyright
©The Author(s) 2019. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jun 6, 2019; 7(11): 1323-1329
Published online Jun 6, 2019. doi: 10.12998/wjcc.v7.i11.1323
Published online Jun 6, 2019. doi: 10.12998/wjcc.v7.i11.1323
Development of a biliary multi-hole self-expandable metallic stent for bile tract diseases: A case report
Makoto Kobayashi, Division of Gastroenterology, Yokkaichi Municipal Hospital, Yokkaichi, Mie 5108657, Japan
Author contributions: Kobayashi M designed and performed the research, analyzed the data and wrote the paper.
Informed consent statement: Written informed consent was obtained from all patients.
Conflict-of-interest statement: Kobayashi M has a patent on the multi-hole self-expandable metallic stent with royalties paid by M.I.Tech Co., Ltd.
CARE Checklist (2016) statement: The authors have read the CARE 2016 Checklist, and the manuscript was prepared and revised according to the CARE 2016 Checklist.
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/
Corresponding author: Makoto Kobayashi, MD, PhD, Doctor, Division of Gastroenterology, Yokkaichi Municipal Hospital, 2-2-37 Shibata, Yokkaichi, Mie 5108657, Japan. makoto-kobayashi@aroma.ocn.ne.jp
Telephone: +81-593-541111 Fax: +81-59-3521565
Received: October 31, 2018
Peer-review started: October 31, 2018
First decision: December 5, 2018
Revised: April 20, 2019
Accepted: May 11, 2019
Article in press: May 11, 2019
Published online: June 6, 2019
Peer-review started: October 31, 2018
First decision: December 5, 2018
Revised: April 20, 2019
Accepted: May 11, 2019
Article in press: May 11, 2019
Published online: June 6, 2019
Core Tip
Core tip: We have developed a multi-hole self-expandable metallic stent (MHSEMS), with a hole in each cell, to prevent the obstruction of bile duct branches. In addition, the holes prevent migration due to small ingrowths by reducing the tension of the membrane. MHSEMS were placed in six patients. Each MHSEMS was successfully deployed with no complications in all cases. An ingrowth case was treated by electrical ablation therapy. Two cases were reviewed. We concluded that a MHSEMS is a new choice of stent for biliary tract diseases.