| Amplatzer device size | Patient number | % |
| 5/4 | 20 | 7.6 |
| 6/4 | 74 | 28.03 |
| 8/6 | 92 | 34.84 |
| 10/8 | 42 | 15.9 |
| 12/10 | 24 | 9.1 |
| 14/12 | 8 | 3.03 |
| 16/14 | 4 | 1.5 |
| Total | 264 | 100 |