Observational Study
Copyright ©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Dec 21, 2021; 27(47): 8182-8193
Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8182
Real-world local recurrence rate after cold polypectomy in colorectal polyps less than 10 mm using propensity score matching
Masashi Saito, Takeshi Yamamura, Masanao Nakamura, Keiko Maeda, Tsunaki Sawada, Eri Ishikawa, Yasuyuki Mizutani, Takuya Ishikawa, Naomi Kakushima, Kazuhiro Furukawa, Eizaburo Ohno, Hiroki Kawashima, Masatoshi Ishigami, Mitsuhiro Fujishiro
Masashi Saito, Takeshi Yamamura, Masanao Nakamura, Eri Ishikawa, Yasuyuki Mizutani, Takuya Ishikawa, Naomi Kakushima, Kazuhiro Furukawa, Eizaburo Ohno, Masatoshi Ishigami, Mitsuhiro Fujishiro, Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya 4668550, Japan
Keiko Maeda, Tsunaki Sawada, Hiroki Kawashima, Department of Endoscopy, Nagoya University Hospital, Nagoya 4668550, Japan
Author contributions: Saito M and Yamamura T were the guarantors and designed the study; Saito M, Yamamura T, Nakamura M, Kawashima H, and Ishikawa T participated in the acquisition, analysis, and interpretation of the data; Saito M drafted the initial manuscript; Ohno E, Yamamura T, Maeda K, Sawada T, Ishikawa E, Mizutani Y, Kakushima N, and Furukawa K revised the article critically for important intellectual content; Yamamura T and Nakamura M contributed to statistical analysis; Fujishiro M made final approval of the article; all authors have read and approved the final manuscript.
Institutional review board statement: This real-world retrospective study was approved by the Ethical Review Board of the Nagoya University Hospital (2015-0449).
Informed consent statement: Informed consent was obtained in the form of opt-out on the website.
Conflict-of-interest statement: The authors declare no conflicts of interest for this article.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (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: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Takeshi Yamamura, MD, PhD, Assistant Professor, Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 4668550, Japan. tyamamu@med.nagoya-u.ac.jp
Received: June 17, 2021
Peer-review started: June 17, 2021
First decision: July 2, 2021
Revised: July 15, 2021
Accepted: December 7, 2021
Article in press: December 7, 2021
Published online: December 21, 2021
Processing time: 182 Days and 18 Hours
Core Tip

Core Tip: In this study, the recurrence rate after cold polypectomy (CP) was evaluated with colonoscopy at long intervals in real clinical practice for non-pedunculated colorectal polyps smaller than 10 mm, and compared with hot polypectomy (HP). Although it is a retrospective study, we used propensity score matching to correct the bias of both groups and compared them. The recurrence rates of both procedures were similar, and it was considered that CP, which is easier in clinical practice, is more useful for small polyps than HP.