早期T波倒置的急性心肌梗死患者临床特点及左室心功能的研究

A study on left ventricular function and clinical characters in patients of AMI with early T-wave inversion

目的 研究AMI早期T波形态与临床特点及左室心功能的关系。方法 据 2 4h内ST段抬高导联的T波形态 ,将5 9例AMI患者分为前侧壁T波直立组、T波倒置组、下后壁T波直立组和下后壁T波倒置组。收集患者的临床资料 ,并行超声心动图检查评价心功能。结果 梗死前心绞痛发生率在前侧壁及下后壁T波倒置组均显著高于T波直立组 (P <0 .0 0 1 )。梗死后心绞痛发生率在前侧壁及下后壁T波倒置组显著低于T波直立组 (P <0 .0 0 1 )。前侧壁及下后壁T波倒置组与T波直立组相比 ,左室舒张末容积和左室收缩末容积均显著下降 (P <0 .0 0 1 ) ,LVEF均显著增加 (P <0 .0 0 1 ) ,左室室壁运动积分指数明显下降(P <0 .0 0 1 )。

Objective To study the relationship between T wave and the left ventricular function and to study the relationship between T wave evolution and clinical characters.Methods Fifty nine patients of acute myocardial infarction(AMI) with ST elevation were divided into early T wave inversion group and non inversion group according to ECG within 24 hours from onset. Clinical data were collected and ultracardiograghy were undergone at 2 weeks from onset to evaluate the left ventricular function. Results Compared with T wave noninversion group, the rate of preinfarction angina was higher and postinfarction angina was lower in T wave inversion group. LVEDV? LVESV? WHSI were lower and LVEF was higher in T wave inversion group. Conclusion Patients with early T wave inversion have higher myocardial reperfusion and have superior left ventricular function than that in T wave noninvertion group.