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本文应用脉冲多普勒超声心动图,测取二尖瓣口舒张期血流频谱的E/A比值为参数,对53例行冠状动脉搭桥术的冠心病患者术前及术后的左心室充盈功能进行评价。所有参数以国际通用统计软件SPSS作配对检验。结果表明,冠脉搭桥术可以使左室充盈功能得到明显地改善。进一步的分析还提示:年龄在60岁以下,术前左室射血分数(LVEF)>50％,无心肌梗塞史、无高血压病、无高血脂等伴发症,无吸烟嗜好的冠心病患者,其术后左室充盈功能的改善更为显著。
In this paper, pulse Doppler echocardiography was used to measure the E / A ratio of diastolic flow spectrum in mitral valve. Parameters of 53 patients with coronary heart disease undergoing coronary artery bypass grafting were measured before and after operation Function evaluation. All parameters to the international statistical software SPSS paired test. The results show that coronary artery bypass grafting can be significantly improved left ventricular filling function. Further analysis also prompted: age 60 years of age, preoperative left ventricular ejection fraction (LVEF)> 50%, no history of myocardial infarction, no hypertension, no hyperlipidemia and other complications, no smoking habit of coronary heart disease Patients, the improvement of left ventricular filling after surgery more significant.