Study on right cardiac function before and after treatment using real time three-dimensional echocardiography for evaluating atrial septal defect closure

Objective To investigate the changes of right heart function of patients with atrial septal defect closure before and after treatment by using real-time three-dimensional echocardiogranhy(RT-3DE).Methods A total of 33 patients diagnosed ostium secundum ASD were selected.All of the patients were checked through transthoracic real-time three-dimensional echocardiography(RT-3D-TEE).Then we detected and analysed the indexes related to right ventricular function before and after closure treatment.Results The indexes of ASD patients such as right ventricular end diastolic diameter(RVEDd),right ventricular end-diastolic volume(RVEDV) and right ventricular end-systolic volume(RVESV) reduced obviously(P 0.01) then those before closure treatment.While right ventricular fractional area change(RVFAC) and three-dimensional right ventricular ejection fraction(3D-RVEF) of the patients after transcatheter closure were lower than those before operation(P 0.01).But after operated for 3 months it slowed down,and for 6 months achieved a new balance.Conclusion ①The right heart function of ASD patients can be improved in different degree after interventional therapy.②Real-time three-dimensional echocardiography(RT-3 DE) evaluating for the right heart function is convenient,noninvasive,easily repeatable,sensitive,accurate and advanced.It can evaluate for the right heart function accurately and comprehensively.