Late follow-up of nonoperative closure of secundum atrial septal defects using the King-Mills double-umbrella device

There has been a marked increase in device closure of secundum atrial septal defects (ASDs) in the last decade. No clinical reports of late results have been forthcoming until now. The purpose of this report was to provide very long-term follow-up of nonoperative closure of secundum ADSs using the King-Mills Umbrella device. ASD closure using this technique did not appear to protect against the known secundum ASD complication of atrial arrhythmia. Twenty-seven-year follow-up of the umbrella ASD closure via the femoral vein shows effective occlusion, absence of device complications, and no reinterventions.