Clinical use of Doppler echocardiography in the estimation of diastolic function in patients with coronary heart disease

Objective To evaluate the left ventricular end diastolic pressure(LVEDP)by echocardiographic findings.Methods Forty patients with repeated chest pain were divided into non-obvious coronary stenosis group and coronary heart disease (CHD) group according to the the examination results by coronary artery angiography.The LVEDP was detected and recorded,and the cardiac parameters were detected by thoracic 2-dimensional echocardiography for both groups.Results The E/Ea ratio in CHD group was significantly higher than that in non-obvious coronary stenosis group(11.68±2.84 vs 8.60±1.90,P0.05). The LVEDP was significantly increased in CHD group,as compared with that in non-obvious coronary stenosis group(P0.05).The linear correlation was found between E/Ea ratio and LVEDP(r=0.8175,P0.05).Conclusion The severe coronary stenosis has a great influence on left ventricular diastolic function. In CHD patients,E/Ea is more accurate in the evaluation of left ventricular diastolic function,as compared with E/A,especially for the estimation of LVEDP.