支架术对老年急性心肌梗死患者近期左心室舒张功能的影响

目的 观察冠状动脉介入治疗(PCI术)对老年(年龄≥65岁)急性心肌梗死(AMI)患者近期(3个月)左心室舒张功能的影响.方法40例老年AMI患者随机分为PCI组和单纯药物治疗的非手术组,观察治疗3个月后左心室舒张功能各指标的变化,并与治疗前进行比较,确定PCI的治疗效果.主要观察指标:左心房前后径(LA-胸骨旁左心室长轴切面);左心室舒张末期内径(LV-胸骨旁左心室长轴切面);左心室射血分数(LVEF);左心室舒张功能指标:二尖瓣口舒张早期血流最大充盈速度(E)、舒张晚期血流最大充盈速度(A),计算E/A;肺静脉心室收缩S波、心室舒张D波,计算S/D.结果PCI组治疗后左心房室内径无明显增大,而非手术组左心房室内径明显增大(P<0.05);左心室舒张功能两组均进一步受损,但PCI组明显好于非手术组(P<0.05).结论PCI治疗可延缓老年AMI患者左心室重塑的进展及舒张功能的恶化.

Effect of PCI on left ventricular diastolic function in the old people with acute myocardial infarction

Objective To compare the the effect of PCI on short term (3 months) left ventricular diastolic function in the old patients with acute myocardial infarction (AMI) (≥ 65 years old). Methods 40 old AMI patients were divided into PCI group and non-operation group (pure medicine treatment group). The changes of left ventricular diastolic function were observed 3 months after operation which were compared with that before treatment so to define the effect of PCI. The major indexes were LA, LV, LVEF, E/A, and S/D. Results LA and LV in PCI group were not significandy changes but they were increased in non-operation group (P < 0.05). Although the left ventricular diastolic function in both group was continually impaird,it was better in PCI group than in non-operation greup(P <0.05). Conclusion PCI can prolong the progress of left heart remodeling and the excerbation of left ventricular diastolic function in old AMI patients.