Open heart surgery is the standard procedure for closure of ostium secundum atrial septal defects. Recently, percutaneous transcatheter procedures emerged as therapeutic alternatives for closure of both atrial septal defects and patent foramen ovale. Unfortunately, however, such percutaneous procedures may require surgical intervention for early or late complications. We report a case with emergent surgery for dislocation of the Amplatzer septal occluder into the aortic arch diagnosed 30 days after percutaneous closure of an atrial septal defect.