Conclusions: The myocardial bridge is an anatomic structure with some functions, such as supporting and fixing aeteria coronaria, increasing arteriotony and raising blood supply of myocardium.
心肌桥为一良性解剖结构，可能具有支持、固定冠状动脉，局部增大冠状动脉血压，提高心肌血供的“心肌瓣膜”作用。
Myocardial bridge
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英语百科
Myocardial bridge
A myocardial bridge occurs when one of the coronary arteries tunnels through the myocardium rather than resting on top of it. Typically, the arteries rest on top of the heart muscle and feed blood down into smaller vessels that populate throughout the myocardium. But if the muscle grows around one of the larger arteries, then a myocardial bridge is formed. As the heart squeezes to pump blood, the muscle exerts pressure across the bridge and constricts the artery. This defect is present from birth. It can lead to uncomfortable, powerful heartbeats and angina. The incidence of the condition in the general population is estimated at 5% based on autopsy findings, but significance when found in association with other cardiac conditions is unknown.