Impact of atrial septal defect device size on biventricular global and regional function: a two-dimensional strain echocardiographic study.

Significant right ventricular global longitudinal strain reduction starts as early as 24 hours after transcatheter closure, irrespective of the device size used. The rapid impact of closure was mainly on the biventricular basal and lateral segments and right ventricular apical ones, especially with the large sized atrial septal defect.