Evaluation on left ventricular function in patients with hypertension by acoustic quantification technique

Objective To evaluate left ventricular systolic and diastolic functions in patients with hypertension by acoustic quantification (AQ)technique.Methods Sixty-two patients with hypertension and 30 control volunteers were studied with AQ technique.The hypertension group was divided into thirty subgroups by left ventricular mass index(LVMI):normal LVMI subgroup and left ventricular hypertrophy subgroup.Results Compared with indices of left ventricular diastolic function in the control volunteers,patients in normal LVMI subgroup and left ventricular hypertrophy subgroup had significantly impaired left ventricular diastolic function,particullarly in patients in the left ventricular hypertrophy subgroup.Compared with parameters of left ventricular systolic function in control volunteers,patients in normal LVMI subgroup had increased hemodynamics and normal left ventricular systolic function,however,in left evntricular hypertrophy subgroup,patients had normal hemodynamice and decreased left ventricular systolic function.Compared with volumetric indices of control volunteers,patients in normal LVMI subgroup had significantly increased left ventricular volume,but there was no difference between control group and left ventricular hypertrophy subgroup.Conclusion AQ technique may be used as a method to quantify left ventricular systolic and diastolic function in patients with hypertension.