|Cause of Death|
|1||LAD dissection and ventricular fibrillation during ASA, died during surgery (acutely in the catheter laboratory)|
|2||Retroperitoneal bleeding from femoral vascular access (within 24 h of septal ablation)|
|3||Acute septal perforation (VSD) in a patient with mild calcific aortic stenosis (within 24 h of septal ablation)|
|4||Left main dissection (acutely in the catheter laboratory)|
|5||Sudden death 10 days after ASA|
|6||Late inferior wall with RV infarction (10 days after ASA)|
RV = right ventricle; VSD = ventricular septal defect; other abbreviations as in Table 2.