Letter To The Editor
Copyright ©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Nov 7, 2020; 26(41): 6510-6513
Published online Nov 7, 2020. doi: 10.3748/wjg.v26.i41.6510
Comment on “Updated meta-analysis of pancreatic stent placement in preventing post-endoscopic retrograde cholangiopancreatography pancreatitis”
Jiang-Tao Chu
Jiang-Tao Chu, Department of Endoscopy, National Cancer Center, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
Author contributions: Chu JT performed the research, analyzed the data and wrote the letter.
Conflict-of-interest statement: No funds were received in support of this work. There are no relevant financial activities outside the submitted work.
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: Jiang-Tao Chu, MD, Doctor, Department of Endoscopy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 17 Panjiayuan, Chaoyang District, Beijing 100021, China. cjtcg@163.com
Received: July 10, 2020
Peer-review started: July 10, 2020
First decision: August 8, 2020
Revised: August 21, 2020
Accepted: September 29, 2020
Article in press: September 29, 2020
Published online: November 7, 2020
Processing time: 119 Days and 5.3 Hours
Abstract

I read with interest an article “Updated meta-analysis of pancreatic stent placement in preventing post-endoscopic retrograde cholangiopancreatography pancreatitis” by Fan and colleagues in World J Gastroenterol 2015; 21(24): 7577-7583. Although I appreciate their work, I have found problems with the data extracted and analyzed by the authors, and will give my comment in this letter. It would be valuable if the authors could provide an accurate estimation of their extracted data.

Keywords: Meta-analysis; Pancreatic stent; Post-endoscopic retrograde cholangiopancreatography; Pancreatitis

Core Tip: Data extraction errors appeared to exist in a published meta-analysis entitled “Updated meta-analysis of pancreatic stent placement in preventing post-endoscopic retrograde cholangiopancreatography pancreatitis” by Fan and colleagues in World J Gastroenterol 2015; 21(24): 7577-7583.