心肌桥是一种先天性冠状动脉发育畸形,即冠状动脉主干或其分支的某一段行走于心肌纤维内,使该心肌纤维束似桥一样被覆盖于冠状动脉表面而得名。以前认为心肌桥是一种不会引发严重心脏事件的异常解剖结构,但近年来不断有心肌桥导致心肌缺血、心绞痛、心肌梗塞、室性心动过速及猝 Myocardial bridge is a congenital malformation of coronary artery, that is, a section of the coronary artery trunk or branches walking in the myocardial fibers, so that the myocardial fibers like a bridge covered by the coronary artery surface was named. Myocardial bridge was previously considered to be an anomalous anatomy that does not cause serious cardiac events, but in recent years there have been myocardial bridge of myocardial ischemia, angina pectoris, myocardial infarction, ventricular tachycardia and sudden arrest