label: atrial septal defect 7
label_lc: atrial septal defect 7
description: Atrial septal defect (ASD) with atrioventricular conduction defects is an extremely rare genetic congenital heart disease characterized by the presence of ASD, mostly of the ostium secundum type, associated with conduction anomalies like atrioventricular block, atrial fibrillation or right bundle branch block.