高龄低危急性心肌梗死患者急诊行PCI与左室功能关系的临床研究

目的探讨高龄低危急性心肌梗死(AMI)患者急诊冠状动脉介入治疗(PCI)与左室功能的临床关系。方法应用超声心动图(ECHO)评价45例高龄AMI患者,将45例AMI患者分为PCI组(20例)及对照组(25例),均于梗死后第4、24周进行ECHO检查。结果经统计学分析,术后第24周PCI组收缩末容积指数(ESVI)及舒张末容积指数(EDVI)与术后第4周比较差异有统计学意义(P<0.05),左室射血分数(LVEF)显著增加(P<0.05),室壁节段运动指数(WMSI)降低(P<0.05);对照组EDVI、WMSI治疗后第24周与治疗后第4周比较,差异有统计学意义(P<0.05)。结论高龄低危AMI患者急诊行PCI开通梗死相关动脉,可明显改善左室重构,提高左室功能。

Correlation of the left ventricular function and emergency percutaneous coronary intervention in elderly patients with acute myocardial infarction at low-risk factor

Objective To approach the correlation of the left ventricular function in elderly patients with acute myocardial infarction (AMI) at low-risk factor. Methods Forty-five elderly patients hospitalized for AMI were registered, including 20 patients who were underwent emergency percutaneous coronary intervention (PCI) after the onset of AMI and 25 patients who received conservative non-invasive therapies. These 45 cases all received echocardiography(ECHO) examination in the 4th and 24th week after acute myocardial infarction. Results In the PCI group, end-diastolic volume index (EDVI) and end-systolic volume index (ESVI) had significant difference (P<0.05) in statistical analysis. Left ventricular ejection fraction (LVEF) was higher (P<0.05), and the wall motions core index decreased after therapy. Contrary to PCI group, in the non-invasive group, EDVI and WMSI were increased obviously (P<0.05), while LVEF and ESVI not changed significantly (P>0.05) after therapy; WMSI was higher than PCI group (P<0.05). It indicated that cardiac function was weakened in the non-invasive group. Conclusions Left ventricular function was improved more significantly in the PCI group than the non-invasive protocol in elderly patients with acute myocardial infarction (AMI) at low-risk factor.