Assessment of left ventricular systolic function in patients with atrial septal defect by real-time three dimensional echocardiography

Objective To investigate left ventricular systolic function before and after operation in atriel septal defect(ASD)patients by real-time three dimensional echocardiography.Methods Thirty-two samples of complete secundum ASD patients with complete closure or repair of ASD patients(ASD group,preoperative and postoperative)and thirty normal subjects served as the control.Real-time three dimensional echocardiography(RT-3DE)was performed on all subjects to obtain and analyze parameters as follows:left ventricular end-diastolic volume(LVEDV),Left ventricular end-systolic volume(LVESV),Left ventricular stroke volume(LVSV),Left ventricular ejection fraction(LVEF).Results The LVEDV,LVESV,LVSV of the ASD patients before treatment were lower than that of the after treatment(P0.05),but LVEF had no significant difference(P0.05).After treatment the LVEDV,LVESV,LVSV,LVEF had no significant difference between the ASD group and the NOR group(P0.05).Conclusions The volume of left ventricular in ASD patients decrease,but systolic function is normal.The volume of left ventricular in ASD patients are recoverd after treating.RT-3DE has an unique advantage in the evaluation of the left ventricular volume and systolic function.