Abstract
BACKGROUND: While the perforation of the atrial wall and aortic sinus after closure of an atrial septal defect (ASD) is rare, it's life-threatening, with rapid progress and high mortality. To the best of our knowledge, 21 similar cases have been reported since 1976. CASE PRESENTATION: We report a 16-year-old male whose atrial septal defect (ASD) was closed using a 12-mm Amplatzer septal occluder (ASO). Atrial wall and aortic sinus perforation occurred 3 months after transcatheter closure, and the patient was discharged after emergency operation. He was discharged on the 12th postoperative day in good overall condition. CONCLUSIONS: With this case report, we want to illustrate that although percutaneous closure of ASD is regarded as a routine procedure, we should not forget the potentially lethal complications, especially cardiac erosion. Therefore, we should carefully evaluate the risk of erosion before surgery, and careful lifelong follow-up is needed.