症状性心肌桥与冠状动脉硬化关系探讨

Relationship betweens Symptomatic Myocardial Bridging and Coronary Atherosclerosis

目的探讨冠状动脉心肌桥与冠状动脉粥样硬化之间的关系。方法回顾性分析接受冠状动脉造影的47例症状性心肌桥患者,其中27例为心肌桥近段动脉粥样硬化者,20例为单纯性心肌桥患者。结果肌桥的检出率3.67%,全部患者均有心绞痛症状,其收缩期狭窄在20%～60%,均发生在左前降支的中、远段。合并动脉硬化的肌桥组收缩期狭窄程度明显重于单纯肌桥组,且差异有统计学意义(P<0.05)。结论心肌桥有促进其近段冠状动脉发生粥样硬化病变的倾向,且与心肌桥的狭窄程度有关。β受体阻滞剂可缓解心肌桥所致的心绞痛。

Objective To investigate the relationship between myocardial bridge and coronary atherosclerosis. Methods The data of 47 patients with myocardial bridge undergoing coronary angiography were analyzed retrospectively,including of 27 patients with proximal myocardial bridge atherosclerosis and 20 patients with simple bridge myocardial. Results The detection rate of myocardial bridge was 3.67%. All patients complained of symptom of angina pectoris with coronary systolic stenosis between 20% -60%. Which all located at the middle or distal section of left anterior descending branch. There was a statisticaldifference. Conclusion Myocardial bridge tends to accelerate atherosclerosis in the proximal coronary, and relates to the degree of myocardial bridge, the angina pectoris resulting from the myocardial bridge is relieved by Batablockers.