[Correction of the perpendicular positioning of the Amplatzer device during closure of an ostium secundum atrial septal defect].

Introduction And Objectives: Ostium secundum atrial septal defects require closure. Echocardiographic studies have reported that, in 7% of cases, the Amplatzer occluder is orientated perpendicular to the rim of the defect. This article describes the use of an ancillary technique involving a balloon catheter that enables the Amplatzer device to be positioned transversely.