Case Report
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Apr 28, 2015; 21(16): 5090-5095
Published online Apr 28, 2015. doi: 10.3748/wjg.v21.i16.5090
Case of arterial hemorrhage after endoscopic papillary large balloon dilation for choledocholithiases using a covered self-expandable metallic stent
Shuya Shimizu, Itaru Naitoh, Takahiro Nakazawa, Kazuki Hayashi, Katsuyuki Miyabe, Hiromu Kondo, Yuji Nishi, Shuichiro Umemura, Yasuki Hori, Akihisa Kato, Hirotaka Ohara, Takashi Joh
Shuya Shimizu, Itaru Naitoh, Takahiro Nakazawa, Kazuki Hayashi, Katsuyuki Miyabe, Hiromu Kondo, Yuji Nishi, Shuichiro Umemura, Yasuki Hori, Akihisa Kato, Takashi Joh, Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
Hirotaka Ohara, Department of Community-based Medical Education, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
Author contributions: Shimizu S designed the idea, collected clinical data and wrote the paper; Naitoh I designed the idea and wrote the paper; Nakazawa T designed the idea and wrote the paper; Hayashi K collected clinical data; Miyabe K collected clinical data; Kondo H collected clinical data; Nishi Y collected clinical data; Umemura S collected clinical data; Hori Y collected clinical data; Kato A collected clinical data; Ohara H collected clinical data; and Joh T designed the idea.
Ethics approval: The study was reviewed and approved by the Institutional Review Board of the Nagoya City University Graduate School of Medical Sciences (# 831).
Informed consent: The study was written informed consent was obtained from the patient prior to study enrollment.
Conflict-of-interest: The authors have no conflict of interest related to the manuscript.
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: Itaru Naitoh, MD, PhD, Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan. inaito@med.nagoya-cu.ac.jp
Telephone: +81-52-8538211 Fax: +81-52-8520952
Received: October 5, 2014
Peer-review started: October 7, 2014
First decision: October 29, 2014
Revised: November 11, 2014
Accepted: January 8, 2015
Article in press: January 8, 2015
Published online: April 28, 2015
Processing time: 203 Days and 18.1 Hours
Core Tip

Core tip: We present a case study of arterial hemorrhage after endoscopic papillary large balloon dilation (EPLBD) that was treated using a covered self-expandable metallic stent (SEMS). After 1 wk of SEMS placement, a direct peroral cholangioscopy revealed a visible vessel with a longitudinal mucosal tear in the ulceration of the lower bile duct. This image is important for understanding the mechanism of hemorrhage after EPLBD.