Retrospective Cohort Study
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Endosc. Dec 16, 2022; 14(12): 759-768
Published online Dec 16, 2022. doi: 10.4253/wjge.v14.i12.759
Effectiveness of early colonoscopy in patients with colonic diverticular hemorrhage: A single-center retrospective cohort study
Chikamasa Ichita, Sayuri Shimizu, Akiko Sasaki, Chihiro Sumida, Takashi Nishino, Karen Kimura
Chikamasa Ichita, Akiko Sasaki, Chihiro Sumida, Takashi Nishino, Karen Kimura, Department of Gastroenterology Medicine Center, Shonan Kamakura General Hospital, Kamakura 247-8533, Kanagawa, Japan
Chikamasa Ichita, Sayuri Shimizu, Department of Health Data Science, Yokohama City University, Yokohama 236-0027, Kanagawa, Japan
Author contributions: Ichita C, Shimizu S, Sasaki A, Sumida C, Nishino T, and Kimura K contributed equally to this work; Ichita C contributed to the planning, data gathering, literature review, writing and editing of this article; Shimizu S provided epidemiological advice and reviewed for statistical analysis; Sasaki A, Sumida C, Nishino T, and Kimura K provided professional suggestions in the conduct of the study; all authors commented on draft versions and approved the final version of the manuscript.
Institutional review board statement: The study was reviewed and approved by the institutional review board of the Future Medical Research Center Ethical Committee (IRB No. TGE01304-024).
Informed consent statement: Due to the observational study based on medical records without using samples taken from the human body, informed consent was obtained from all participants through the opt-out method on our hospital website.
Conflict-of-interest statement: All the authors have no conflicts of interest directly relevant to the content of this article.
Data sharing statement: The original anonymous dataset is available on request from the corresponding author at ichikamasa@yahoo.co.jp.
STROBE statement: The authors have read the STROBE Statement—checklist of items, and the manuscript was prepared and revised according to the STROBE Statement—checklist of items.
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: Chikamasa Ichita, MD, Doctor, Department of Gastroenterology Medicine Center, Shonan Kamakura General Hospital, 1370-1, Okamoto, Kamakura 247-8533, Kanagawa, Japan. ichikamasa@yahoo.co.jp
Received: October 11, 2022
Peer-review started: October 11, 2022
First decision: October 26, 2022
Revised: November 1, 2022
Accepted: November 22, 2022
Article in press: November 22, 2022
Published online: December 16, 2022
ARTICLE HIGHLIGHTS
Research background

Appropriate timing of colonoscopy for colonic diverticular hemorrhage is not well evidenced.

Research motivation

The motivation for this study is to investigate whether within 24 h is an appropriate timing for colonoscopy for colonic diverticular hemorrhage.

Research objectives

We aimed to compare the length of hospital stay for colonoscopy for colonic diverticular hemorrhage by dividing patients into two groups: early groups (within 24 h) and elective colonoscopy (after 24 h).

Research methods

A single-center retrospective study over 5 years compared the two groups using propensity score matching.

Research results

Early colonoscopy within 24 h did not significantly improve hospital stay.

Research conclusions

Early colonoscopy within 24 h for colonic diverticular hemorrhage may not improve length of hospital stay.

Research perspectives

Further research is needed to determine which patients really need early colonoscopy.