Abstract: To investigate the correlation between systolic and diastolic blood pressure and systolic and diastolic function of left ventricle, blood pressure and left ventricular function were observed by echocardiography in 374 patients with essential hypertension. It was found that there were negative correlation between systolic blood pressure(SBP)and peak flow velocity of early diastole(EPFV)(P<0.05), positive correlation between SBP and peak flow velocity of atrial contraction(APFV)(P<0.05)and between SBP and A/E(P<0.01); and there was negative correlation between diastolic blood pressure(DBP)and cardiac output(CO)(P<0.01). Cholesterol was higher in patients with isolated systolic hypertension than patients with diastolic hypertension(P<0.001). Stepwise multivariate regression analysis disclosed that A/E ratio all alone and jointly positively correlated with SBP, and age and CO all alone and jointly correlated with DBP. It was suggested that left ventricular diastolic function was mainly influenced by SBP and systolic function was mainly influenced by DBP.

Key words: essential hypertension, echocardiography, blood pressure, heart function test