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©The Author(s) 2016. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Jul 21, 2016; 22(27): 6268-6275
Published online Jul 21, 2016. doi: 10.3748/wjg.v22.i27.6268
Published online Jul 21, 2016. doi: 10.3748/wjg.v22.i27.6268
Feasibility and safety of endoscopic submucosal dissection for lower rectal tumors with hemorrhoids
Shinwa Tanaka, Takashi Toyonaga, Tetsuya Yoshizaki, Fumiaki Kawara, Eiji Umegaki, Department of Endoscopy, Kobe University Hospital, Kobe, Hyogo 650-0017, Japan
Yoshinori Morita, Namiko Hoshi, Tsukasa Ishida, Yoshiko Ohara, Takeshi Azuma, Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Hyogo 650-0017, Japan
Author contributions: Tanaka S designed and performed the research and wrote the paper; Toyonaga T designed the research and supervised the report; Ohara Y, Yoshizaki T and Kawara F designed the research and contributed to the analysis; Morita Y, Hoshi N and Ishida T provided clinical advice; Umegaki E and Azuma T supervised the report.
Institutional review board statement: This study was reviewed and approved by the Ethics Committee of the Kobe University Hospital.
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 Kobe University Hospital.
Conflict-of-interest statement: We have no financial relationships to disclose.
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: Shinwa Tanaka, MD, PhD, Department of Endoscopy, Kobe University Hospital, 7-5-1 Chuo-ku, Kusunoki-cho, Kobe, Hyogo 650-0017, Japan. tanakas@med.kobe-u.ac.jp
Telephone: +81-78-3826305 Fax: +81-78-3826309
Received: March 3, 2016
Peer-review started: March 4, 2016
First decision: April 1, 2016
Revised: April 13, 2016
Accepted: May 4, 2016
Article in press: May 4, 2016
Published online: July 21, 2016
Peer-review started: March 4, 2016
First decision: April 1, 2016
Revised: April 13, 2016
Accepted: May 4, 2016
Article in press: May 4, 2016
Published online: July 21, 2016
Core Tip
Core tip: Recently, the feasibility and safety of endoscopic submucosal dissection (ESD) have been reported from different countries. However, ESD for lesions extending to the dentate line is technically difficult due to the anatomical features. This paper showed ESD on lower rectal lesions with hemorrhoids was feasible and safe, similarly to that on rectal lesions extending to the dentate line without hemorrhoids and all hemorrhoids after ESD improved to various degrees, depending on the resection range.