论文部分内容阅读
目的应用小剂量多巴酚丁胺负荷超声心动图(LDDSE)预测心肌梗死后患者存活心肌,探讨其临床价值。方法心肌梗死患者30例,成功行冠状动脉血运重建术(CRV),分别于CRV术前、术后行10μg/(kg·min)LDDSE及静息超声心动图检查。将试验时检出的功能改善心肌与CRV术后运动改善的心肌节段进行对比,计算LDDSE识别存活心肌的敏感性、特异性。结果多巴酚丁胺10μg/(kg·min)负荷超声心动图可检测存活心肌的敏感性及特异性分别为89.6%、82.8%。结论 LDDSE估测心梗后存活心肌临床价值较高。
Objective To evaluate the clinical value of low-dose dobutamine stress echocardiography (LDDSE) in prediction of viable myocardium in patients with myocardial infarction. Methods Thirty patients with myocardial infarction were enrolled in this study. Coronary artery revascularization (CRV) was performed successfully. LDDSE and resting echocardiography were performed at 10 μg / (kg · min) before and after CRV. The function-enhanced myocardium detected during the trial was compared with the myocardial segments with improved post-CRV exercise, and the sensitivity and specificity of LDDSE in identifying viable myocardium were calculated. Results The sensitivity and specificity of dobutamine 10 μg / (kg · min) load echocardiography for detecting viable myocardium were 89.6% and 82.8%, respectively. Conclusions LDDSE has a high clinical value in estimating myocardial viability after myocardial infarction.