| Cardiac Incision | % | Methods of Resection | % |
| Right atrial trans-septal approach | 55 | Excision | 50 |
| Right atrial approach | 20 | Excision with cauterization | 20 |
| Left atrial approach | 20 | Excision with direct suture of ASD | 25 |
| Bi-atrial approach | 5 | Excision with patch closure of ASD | 5 |
| Total | 100 |
| 100 |