Case Report
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Oct 16, 2022; 10(29): 10721-10727
Published online Oct 16, 2022. doi: 10.12998/wjcc.v10.i29.10721
Myocardial bridging phenomenon is not invariable: A case report
Hao-Hao Li, Ming-Wang Liu, Yang-Fang Zhang, Bo-Ce Song, Zheng-Chuan Zhu, Fu-Hai Zhao
Hao-Hao Li, Graduate School of Beijing University of Chinese Medicine, Beijing 100029, China
Ming-Wang Liu, Yang-Fang Zhang, Bo-Ce Song, Zheng-Chuan Zhu, Fu-Hai Zhao, Department of Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medicine Science, National Clinical Research Center for Chinese Medicine Cardiology, Beijing 100091, China
Author contributions: Li HH designed and wrote the report; Zhao FH guided the writing of the report and revised it; Liu MW contributed to constructive discussions; Zhang YF, Song BC, and Zhu ZC assisted with the data management; All authors have read and approved the final manuscript.
Supported by the CACMS Innovation Fund, No. CI2021A00901.
Informed consent statement: The patient provided oral and written informed consent prior to study enrolment.
Conflict-of-interest statement: All authors declare no conflicts of interest.
CARE Checklist (2016) statement: All authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
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: Fu-Hai Zhao, MD, Chief Doctor, Department of Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medicine Science, National Clinical Research Center for Chinese Medicine Cardiology, No. 1 Xiyuancaochang, Haidian District, Beijing 100091, China. 13911134962@163.com
Received: May 27, 2022
Peer-review started: May 27, 2022
First decision: June 27, 2022
Revised: July 10, 2022
Accepted: August 25, 2022
Article in press: August 25, 2022
Published online: October 16, 2022
Processing time: 124 Days and 18.6 Hours
Core Tip

Core Tip: Myocardial bridging is a common anatomical malformation. Coronary angiography is considered the routine method to diagnose myocardial bridging, and the milking effect is a characteristic phenomenon of myocardial bridging in coronary angiography. Myocardial bridging is generally classified as superficial or deep according to anatomical features, which can be manifested by the milking effect. While the milking effect is generally invariable, our case surprisingly showed that the milking effect is not invariable. In certain circumstances, the myocardial bridging phenomenon may vary, which can mislead us into judging the prognosis of myocardial bridging. Therefore, it is necessary to perceive myocardial bridging phenomenon anew.