超声心动图对急性心肌梗塞后左心室结构和功能的评价

目的 动脉观察急性心肌梗塞后左室结构和功能的变化，评价溶栓治疗对梗塞后心室重构的影响。方法 对２８例首发急性心肌梗塞患者于梗塞后第４周和第１２周进行超声心动图观察。所测参数有：左室舒张末期和收缩末期容积指数（ＬＶＥＤＶＩ，ＬＶＥＳＶＩ）及射血分数（ＥＦ）。结果 急性心肌梗塞患者ＬＶＥＤＶＩ，ＬＶＥＳＶＩ均明显增高；栓组ＬＶＥＤＶＩ，ＬＶＥＳＶＩ无明显变化，ＥＦ升高，未溶栓组ＬＶＥＤＶＩ，ＬＶＥＳＶ

Evaluation of left ventricular structure and function with echocardiography after acute myocardial infarction

Objective To observe left ventricular structure and function change,evaluate the impact of thrombolytic therapy on the left ventricular structure and function after acute myocardial infarction continuously.Methods Echocardiography was applied to observe 28 cases of first acute myocardial infarction in the 4th week and the 12th week after infarction,left ventricular end-diastolic volume index(LVEDVI),left ventricular end-systolic volume index(LVESVI)and ejection fraction(EF)were measured.Results LVEDVI,LVESVI of all 28 cases were higher in the 12th weeks than in the 4th weeks(P<0.01,P<0.05).Compared two examination results,LVEDVI and LVESVI had no significant difference(P>0.05),EF was higher in thrombolytic(P<0.05);LVEDVI and LVESVI were higher in nonthrombolytic(P<0.05)and anterior wall infarction group(P<0.01);LVEDVl,LVESVI and EF had no significant changes (P>0.05) in inferior wall infarction.Intergroup comparison was carried to analyse the 4th week and the 12th week resuhs,LVEDVI and LVESVt were lower,EF was higher in thrombolytic group than in non-thrombolytic(P<0.05).LVEDVI and LVESVI were higher,EF was lower(P<0.01)in anterior wall infarction group than in inferior wall infarction.Conclusions Left ventricular structure would change after acute myocardial infarction.Thrombolytic therapy could prevent left ventricle from dilating.Echocardiography is a useful method in evaluating left ventricular structure and function after acute myocardial infarction.