Evaluation of Left Ventricular Function by Tei Index and Doppler Tissue Imaging in Patients with Essential Hypertension with Different Pattern of Left Ventricular Geometric Model

Objective To explore the clinical value of Tei index and Doppler tissue imaging(DTI) in assessment of left ventricular function in patients with essential hypertension with different pattern of left ventricular geometric model.Methods The total of 98 patients with essential hypertension and 32 healthy subjects were studied on echocardiography.The end-diastolic diameters of left ventricle(LVDd),interventricular septum thickness(IVS),left ventricular posterior wall thickness(LVPW),E/A ratio(E/A) at mitral orifice,Ea/Aa ratio(Ea/Aa) and S at anterior mitral annulus were detected with DTI and left ventricular ejection fraction(EF) and Tei index were measured.Results Compared with the normal group,E/A in hypertension with normal left ventricle(group Ⅰ,25 cases),concentric remodeling(group Ⅱ,28 cases),concentric hypertrophy(group Ⅲ,23 cases) were lower,E/A in hypertension with eccentric hypertrophy(group Ⅳ,22 cases) was 1,it was pseudonormalization.Ea/Aa was 1 in all hypertension groups and S was decreased in groups Ⅱ,Ⅲ,Ⅳ.EF was greatly decreased only in group Ⅳ.Tei index of all patients were increased than that in thenormal.There was significant difference between group Ⅰ and Ⅲ,as well as between group Ⅳ and Ⅰ,Ⅱ,Ⅲ.Tei index was negatively correlated with S,Ea/Aa,EF and was not correlated with E/A.Conclusion Tei index and DTI are valuable and easy in estimation left ventricular systolic and diastolic functions with high sensitivity.