Impact of transcatheter closure of atrial septal defects on cardiac function.

Purpose: The purpose of this study was to investigate the effects of transcatheter closure of atrial septal defects (ASD) on left ventricular function.

Methods: Conventional and three-dimensional echocardiographic methods (3D) were performed in 20 patients who underwent ASD closure. Diastolic and systolic volumes (LVVd and LVVs) and ejection fractions (EF) were determined by 3D methods.