摘要
目的探讨心肌桥的冠状动脉造影特点和心电图的变化。方法回顾性分析冠状动脉造影中35例心肌桥的临床表现及冠状动脉造影和心电图的特点。结果冠状动脉造影心肌桥的检出率为1%,均位于左前降支,其中1级狭窄5例,2级狭窄12例,3级狭窄18例,16例病人伴有冠状动脉粥样硬化样改变。全部病例均有临床症状,23例有心电图ST-T改变,运动试验阳性8例,可疑阳性5例,3例病人出现与相关心肌桥无关的下壁心肌梗死。16例病人随访0.5～3年,无1例发生与相关血管有关的急性心肌梗死、心源性猝死和急性心衰。结论冠状动脉心肌桥可能导致心肌缺血,引起心绞痛,但预后良好。
Object To explore the coronary angiographic feature and electrocardiographic changes of myocardial bridging in the population undertaking coronary angiography. Methods retrospective analysis the clinical manifestation,coronary angiographic feature and electrocardiographic changes of myocardial bridging in 3452 patients with coronary angiography. Results 35 myocardial bridgings had been detected and prevalence rate is 1%. All the myocardial bridges are in left anterior descending branches and among which 5 has grade I stenosis,12 grade II stenosis and 18 grade III stenosis. All cases had clinical symptoms and 22 cases had electrocardiograph changes of ST-T. 18 cases had exercise test results and 8were positive, 5 were suspected positive, 3 patients had posterior myocardial infarction (no relation to myocardial bridging). After 0.5～5 years follow-up, no acute myocardial infarction, sudden death and acute heart failure occurred. Conclusions As myocardial bridging in coronary arteries may cause myocardial ischemia and angina, but the prognosis of myocardial bridging is good.
出处
《临床心电学杂志》
2004年第4期254-255,共2页
Journal of Clinical Electrocardiology
