Procedure-related complications
| Complication | Ruptured (n = 118) | Unruptured (n = 72) | Retreated (n = 20) | Incidence (%) |
| Thromboembolism (n = 22) | 13 | 5 | 4 | 10.4 |
| Intraprocedural rupture (n = 9) | 9 | 0 | 0 | 4.2 |
| Coil migration (n = 2) | 2 | 0 | 0 | 1.0 |
| Parent-vessel injury (n = 2) | 2 | 0 | 0 | 1.0 |
| Postprocedural rupture (n = 1) | 1 | 0 | 0 | 0.5 |
| Cranial nerve palsy (n = 1) | 0 | 1 | 0 | 0.5 |
| Total (n = 37) | 27 | 6 | 4 | 17.6 |