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目的:分析心肌桥致心绞痛发作的临床特点及发病机制,进一步探讨心肌桥的病理生理及治疗。方法:收集1998-2006年978例冠状动脉造影中,发现并诊断单纯心肌桥14例,将心绞痛发作时心电图改变、活动平板试验结果与心肌桥存在的冠脉部位进行分析、研究。结果:心肌桥的部位与心电图改变导联相关性达71.4%。结论:心肌桥与心肌缺血、心绞痛密切相关。
OBJECTIVE: To analyze the clinical features and pathogenesis of myocardial bridge-induced angina pectoris and to further explore the pathophysiology and treatment of myocardial bridge. Methods: From 1998 to 2006, 978 cases of coronary angiography were collected. 14 cases of simple myocardial bridge were found and diagnosed. The changes of electrocardiogram during angina pectoris were analyzed. The results of treadmill test and coronary artery occlusion were analyzed. Results: The location of the myocardial bridge was associated with 71.4% of lead changes. Conclusion: Myocardial bridge is closely related to myocardial ischemia and angina pectoris.