定量组织速度显像评价急诊PCI治疗对急性心肌梗死患者左室收缩和舒张功能的影响

目的 应用定量组织速度显像评价急诊经皮冠状动脉介入术(PCI)治疗对急性心肌梗死(AMI)患者左室收缩和舒张功能的影响.方法 本研究共入选22例急性ST段抬高性心肌梗死患者,于急诊PCI治疗前及治疗后1周、3个月、6个月分别测定患者的左房室瓣环收缩期峰值速度(Sa)、舒张早期峰值速度(Ea)和舒张晚期峰值速度(Aa),并计算Ea/Aa比值.结果 (1)PCI治疗后1周患者Sa与治疗前比较差异无统计学意义(q=0.515,P<0.05);PCI治疗后3、6个月患者Sa较治疗前有所升高,差异均有统计学意义(q值分别为0.042和0.029,P<0.05);PCI治疗后3个月与治疗后1周时比较Sa也有所升高,差异有统计学意义(q=0.012,P<0.05).(2)急诊PCI治疗后3、6个月患者Ea与治疗前比较有所升高,差异均有统计学意义(q值分别为0.012和0.011,P<0.05).(3)急诊PCI治疗后1周、3个月和6个月患者Ea/Aa比值与治疗前比较有所升高,差异均有统计学意义(q值分别为0.023、0.018和0.012,P<0.05).结论 急诊PCI治疗可以改善AMI患者的左室收缩和舒张功能;定量组织速度显像可以准确、敏感地评价AMI患者急诊PCI治疗后左室收缩和舒张功能变化.

Effect of Quantitative Tissue Velocity Imaging for Evaluation of Emergency PCI on Left Ventricular Systolic and Diastolic Function in AMI Patients

Objective To evaluate the clinical value of quantitative tissue velocity imaging in detecton of left ventricular systolic and diastolic function in patients with acute myocardial infarction (AMI) after primary percutaneous coronary intervention.Methods The velocuties of peak systolic flow velocity (Sa) of left atrioventricular valve ring,early diastolic peak velocity (Ea) and late diastolic peak velocity (Aa) were determined in 22 patients with AMI ST segment elevation before emergency PCI treatment or 1 we...