摘要
目的探讨急性下壁心肌梗死(inferior wall myocardial infarction,IWMI)伴或不伴右心室心肌梗死(right ventricular myocardial infarction,RVMI)患者的心电图特征。方法选择发病12 h内入院的IWMI 268例,进行冠状动脉造影(coronary angiography,CAG)检查,以右冠状动脉(right coronary artery,RCA)右室支近端闭塞作为RVMI的诊断依据,将患者分为IWMI合并RVMI组(93例,RVMI组)和单纯IWMI组(175例,对照组),在安静休息状态下描记l8导联心电图,分析两组的心电图特征。结果 RVMI组STⅢ↑/STⅡ↑≥1、STV4R↑≥1 mm、电轴左偏、高度房室及右束支传导阻滞、心房颤动各项指标检出率均较对照组高,差异具有显著性(P<0.05)。结论 IWMI时心电图出现STⅢ↑/STⅡ↑≥1、STV4R↑≥1 mm、电轴左偏、高度房室及右束支传导阻滞、心房颤动高度提示IWMI合并RVMI,可作为诊断RVMI参考指征。
Objective To analysize the ECG characteristics of patients in inferior wall acute myocardial infarction(IWMI) complicated with or without right ventricular myocardial infarction(RVMI). Methods 268 patients with IWMI admitted within 12 hours from onset of infarct symptoms underwent emergency CAG. The ECGcharacteristics of 268 cass of IWMI were prospectively analyzed. The patients were divided into IWMI with RVMI group(n=93),based on the occlusion of right coronary artery(RCA) proximal to the right ventricular branch shown by CAG and IWMI group(n=175).The 18 lead ECG were recorded in quiet state.The ECG parameters in two groups were compared. Results The ECG signs of ST Ⅲ↑/STⅡ↑≥1、STV4R↑≥1mm、left axis deviation、atrial fibrillation、advanced A-V blockand right bundle branch block were more common in IWMI patients with RVMI(P<0.05). Conclusion The ECG manifestations of STⅢ↑/STⅡ↑≥1、STV4R↑≥1mm、left axis deviation、atrial fibrillation、advanced A-V block and right bundle branch block with IWMI could be references for the diagnosis of IWMI with RVMI.
出处
《心电图杂志（电子版）》
2014年第1期10-11,共2页
Journal of Electrocardiogram（Electronic Edition）
关键词
下壁心肌梗死
右心室心肌梗死
心电图
Inferior wall myocardial infarction
Right ventricular myocardial infarction
ECG
