The study of functional changes of the right ventricle after transcatheter closure of atrial septal defect with echocardiography

Objective: To study the changes of right ventricular structure and function after transcatheter closure of adult secondary type atrial septal defect(ASD).Methods: Twenty-seven patients with ASD were undergone transcatheter closure successfully.Right ventricular end-diastolic diameter(RVED),left ventricular end-diastolic diameter(LVED),right atrium end-systolic diameter(RAD),right ventricular eject fraction(RVEF),the doppler transtricuspid filling velocities,tricuspid regurgitation velocities and pulmonary artery filling velocities peak(PFVP) were measured respectively before the operation,3 days,1 month and 3 months of post-operation.Results: RVED,RAD,RVEF,TR and PFVP decreased significantly after operation while LVED increased.Conclusions: Right ventricular geometry structure were improved.The systolic and diastolic function of right ventricular strengthened after operations.