Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padova, Italy.
Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padova, Italy.
J Am Coll Cardiol. 2016 Dec 27;68(25):2887-2899. doi: 10.1016/j.jacc.2016.09.973.
A myocardial bridge (MB) is the term for the muscle overlying the intramyocardial segment of the epicardial coronary artery (referred to as a tunneled artery). Although MBs can be found in any epicardial artery, most of them involve the left anterior descending artery. These congenital coronary anomalies have long been recognized anatomically, and are traditionally considered a benign condition; however, the association between myocardial ischemia and MBs has increased their clinical relevance. This review summarizes the prevalence, pathophysiology, and diagnostic findings, including morphological, functional assessment, and treatment of patients with MB involving the left anterior descending artery, suggesting a pragmatic clinical approach to this entity.
心肌桥是指覆盖心外膜冠状动脉心肌内段的肌肉（称为隧道动脉）的术语。尽管心肌桥可存在于任何心外膜动脉中，但大多数涉及左前降支。这些先天性冠状动脉异常在解剖学上很早就被认识到，传统上被认为是良性的；然而，心肌缺血与心肌桥之间的关联增加了它们的临床相关性。这篇综述总结了左前降支心肌桥的患病率、病理生理学和诊断发现，包括形态学、功能评估和治疗，为这一实体提供了一种实用的临床方法。
