Rychter Kelly, Salanitri John, Edelman Robert R
Division of Cardiology, Department of Medicine, Evanston Northwestern Hospital, 2650 Ridge Avenue, Evanston, IL 60201, USA.
Int J Cardiovasc Imaging. 2006 Oct;22(5):713-7. doi: 10.1007/s10554-006-9086-7. Epub 2006 Apr 20.
Myocardial bridging is a congenital condition in which a segment of a major epicardial coronary artery has an intramyocardial course. Myocardial bridging is usually confined to a single vessel (typically the mid segment of the left anterior descending artery) and is usually asymptomatic, however, bridging may be associated with chest pain, myocardial infarction, or sudden cardiac death. While more commonly identified at autopsy, myocardial bridging is occasionally diagnosed by coronary angiography with identification of concomitant myocardial bridging involving both the left and right coronary arteries appearing to be uncommon. We present three patients presenting with atypical chest pain symptoms in whom concomitant right coronary artery and left anterior descending artery myocardial bridging was identified by ECG gated multidetector computed tomography (MDCT).
心肌桥是一种先天性疾病，其中一条主要的心外膜冠状动脉的一段走行于心肌内。心肌桥通常局限于单一血管（通常是左前降支中段），且通常无症状，然而，心肌桥可能与胸痛、心肌梗死或心源性猝死有关。虽然心肌桥在尸检时更常被发现，但偶尔也可通过冠状动脉造影诊断，同时累及左、右冠状动脉的心肌桥似乎并不常见。我们报告了3例表现为非典型胸痛症状的患者，通过心电图门控多层螺旋计算机断层扫描（MDCT）发现同时存在右冠状动脉和左前降支心肌桥。
