梗死相关动脉为左回旋支的急性心肌梗死临床特点研究  

The clinical characteristics of left circumflex artery-related acute myocardial infarction undergoing primary percutaneouscoronary intervention

作　　者：张朝君[1] 洪衡[2] 代中礼[1] 钱福东[1] 汪芳松[1] 王明生[2] 

机构地区：[1]安徽医科大学附属六安医院心血管内科,六安237000 [2]北京市石景山医院心血管内科,北京100043

出　　处：《安徽医科大学学报》2015年第8期1188-1191,共4页Acta Universitatis Medicinalis Anhui

基　　金：北京市优秀人才培养资助项目(编号:20071D0900600333)

摘　　要：回顾性分析急诊24 h行经皮冠状动脉介入(PCI)治疗的急性心肌梗死(AMI)患者149例,其中112例梗死相关血管(IRA)为右冠状动脉(RCA组)与37例IRA为左回旋支动脉(LCX组),结果显示LCX组与RCA组比较,LCX组发病至就诊时间较长,心力衰竭及胸闷发生率较高(P<0.05),但其右室心肌梗死、房室传导阻滞发生率较低(P<0.05),心电图定位准确性及敏感性均较低(P<0.05),LCX组较RCA组非ST抬高急性心肌梗死发生率较高(P<0.05),冠状动脉造影LCX组右侧优势型较少(P<0.05),且IRA位于LCX以近段病变为主。A total of 149 acute myocardial infarction patients undergoing primary PCI in the first 24 hours were an-alysed, including 112 RCA-infarct-related artery（RCA group） and 37 LCX-infarct-related artery（LCX group） AMI patients. Compaerd with RCA-related MI, patients with LCX-related MI had less ratios of right ventricular myocar-dial infarction,atrioventricular block（P 〈 0. 05）,but longer onset to admission time,higher rates of heart failure as well as chest dirtress（P 〈 0. 05）. The accuracy and sensitivity of electrocardiogram on LCX-related MI positioning was lower（P 〈 0. 05）, LCX-related NSTEMI incidence was higher（P 〈 0. 05）, and less cases of right dominance in coronary angiography occurred in LCX group（P 〈 0. 05）. Furthermore,proximal LCX occlusion was more fre-quently presented.

关 键 词：左侧回旋支 梗死相关动脉 急性心肌梗死 

分 类 号：R541.4[医药卫生—心血管疾病]