Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.
World J Gastrointest Endosc. Sep 16, 2026; 18(9): 123453
Published online Sep 16, 2026. doi: 10.4253/wjge.123453
Published online Sep 16, 2026. doi: 10.4253/wjge.123453
Effects of transcutaneous electrical acupoint stimulation on colonic spasm during colonoscopy: A randomized controlled trial
Jia-Qi Chen, Fei Xing, Dan Cheng, Ming-Cui Qu, Zhi-Hu Yang, Ming-Zhu Jing, Ya-Nan He, Ya-Zhuo Yuan, Hui-Xin Li, Na Xing, Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
You-Hong Ren, Department of Rehabilitation Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
Co-first authors: Jia-Qi Chen and Fei Xing.
Co-corresponding authors: Na Xing and Hui-Xin Li.
Author contributions: Xing N and Li HX designed and planned the study as co-corresponding authors; Chen JQ and Xing F contributed equally as co-first authors; Chen JQ, Xing F, Cheng D and Ren YH recruited and followed up patients; Chen JQ and Qu MC analyzed the data; Chen JQ and Xing F drafted the manuscript; Yang ZH, Jing MZ, He YN and Yuan YZ provided critical revisions to the manuscript and supervised the research; all authors have approved the final manuscript and had full access to all the data in the study.
AI contribution statement: No AI tool was used to generate research data, interpret results, or formulate conclusions.
Supported by The Henan Clinical Research-oriented Doctor Program, No. HNCRD202427; and The Henan Medical Education Research Project, No. WJLX2025084.
Institutional review board statement: The study was reviewed and approved by the First Affiliated Hospital of Zhengzhou University Ethics Committee.
Clinical trial registration statement: This study is registered at the Chinese Clinical Trial Registry. The identification number is ChiCTR2500114656.
Informed consent statement: All study participants or their legal guardian provided informed written consent prior to study enrolment.
Conflict-of-interest statement: All authors declare no potential conflicts of interest.
CONSORT 2010 statement: The authors have read the CONSORT 2010 statement, and the manuscript was prepared and revised according to the CONSORT 2010 statement.
Data sharing statement: The datasets generated and analyzed during the current study are not publicly available because individual privacy could be compromised. However, they are available from the corresponding author on reasonable request.
Corresponding author: Na Xing, MD, PhD, Department of Anesthesiology, Pain and Periope
Received: May 19, 2026
Revised: July 22, 2026
Accepted: August 14, 2026
Published online: September 16, 2026
Processing time: 114 Days and 10.5 Hours
Revised: July 22, 2026
Accepted: August 14, 2026
Published online: September 16, 2026
Processing time: 114 Days and 10.5 Hours
Core Tip
Core Tip: This randomized controlled trial demonstrated that preoperative transcutaneous electrical acupoint stimulation (TEAS) significantly reduced the incidence of colonic spasm during painless colonoscopy. Notably, it also improved perioperative hemodynamic stability, decreased postoperative pain and adverse events, and enhanced both patient and physician satisfaction without affecting procedural efficiency. As a non-invasive and non-pharmacological intervention, TEAS repre