Department of Anatomy, Faculty of Medicine, Near East University, Nicosia, Cyprus.
Department of Human Anatomy, Faculty of Basic Sciences, Yusuf Maitama Sule University, Kano, Nigeria.
Folia Morphol (Warsz). 2020;79(2):411-414. doi: 10.5603/FM.a2019.0080. Epub 2019 Aug 26.
Myocardial bridging (MB) is an anatomical variant in which an epicardial coronary artery passes under a bridge of myocardium. The most commonly affected vessel is the left anterior descending coronary artery, although other branches such as the marginal branches, diagonal branches and posterior descending right coronary artery may be occasionally involved. Technological advances in radiological techniques have enabled better diagnosis of myocardial bridges especially coronary angiography and coronary computed tomographic angiography (CCTA). During a routine angiography by means of CCTA in a 60-year-old male patient with arrhythmia, a case of MB was found in two segments of the posterior interventricular artery and a small segment of the right coronary artery. Although most cases of myocardial bridges are asymptomatic, knowledge of its pathophysiology is of great clinical importance as some cases of MBs have been associated with acute coronary syndromes, ischaemia, arrhythmias and even sudden death.
心肌桥（MB）是一种解剖学变异，其中心外膜冠状动脉穿过心肌桥。最常受累的血管是左前降支冠状动脉，但其他分支如边缘支、对角支和后降支右冠状动脉偶尔也会受累。放射学技术的技术进步使心肌桥的诊断，特别是冠状动脉造影和冠状动脉计算机断层血管造影（CCTA）得到了更好的诊断。在对一名 60 岁男性心律失常患者进行常规 CCTA 血管造影时，在后间隔动脉的两个节段和右冠状动脉的一小段发现了心肌桥。虽然大多数心肌桥无症状，但了解其病理生理学具有重要的临床意义，因为一些心肌桥与急性冠状动脉综合征、缺血、心律失常甚至猝死有关。
