Laifer L I, Weiner B H
Division of Cardiovascular Medicine, University of Massachusetts School of Medicine, Worcester.
Cardiology. 1991;79(4):245-8. doi: 10.1159/000174886.
The incidence of myocardial bridging observed at angiography (0.5-16%) is far less than at pathologic study (greater than 50%). Myocardial bridging is felt to have a 'protective effect' on the coronary artery at the site of bridging, and significant atherosclerosis within the bridge is almost never seen at pathologic examination. To date, there have been no reports of significant atherosclerosis at the site of angiographically documented myocardial bridging. We report a unique case of an angioplasty of a left anterior descending artery stenosis within a myocardial bridge. This report also discusses the possible difference in the protective effect of myocardial bridging that is seen at angiography and myocardial bridging that is only appreciated pathologically but not angiographically.
血管造影时观察到的心肌桥发生率（0.5%-16%）远低于病理研究中的发生率（超过50%）。心肌桥被认为对桥接部位的冠状动脉有“保护作用”，在病理检查中几乎从未见过桥内有明显的动脉粥样硬化。迄今为止，尚无关于血管造影记录的心肌桥部位出现明显动脉粥样硬化的报道。我们报告了1例独特的心肌桥内左前降支狭窄行血管成形术的病例。本报告还讨论了血管造影时所见心肌桥的保护作用与仅在病理检查中发现而血管造影未发现的心肌桥的保护作用可能存在的差异。
