Summary of recent studies investigating the long-term stability after endovascular treatment
| Study | Initially complete occlusion (%) | Recanalization (%) | Retreatment (%) | Rebleeding (%) |
| Cognard et al 21 | 56 | 13.5 | 3.4 | – |
| Murayama et al 3 | 55 | 20.9 | – | 1.6 |
| Raymond et al 2 | 35.9 | 33.6 | 10.9 | – |
| Sluzewski et al 14 | 80.3 | – | – | 1.6 |
| Henkes et al 16 | 63.7 | – | 23.6 | 2.2 |
| CARAT Investigators7 | – | – | 19.4 | 0.3 |
| Aikawa et al 18 | – | – | 9.7 | 2.6 |
| Grunwald et al 6 | 85 | 22.2 | 7.8 | 0 |
| Nguyen et al 17 | 39.7 | 33.6 | 13.4 | 2.6 |
| Pandey et al 11 | 87.8 | 24.5 | 4.9 | 1.1 |
| Holmin et al 4 | 54.3 | 15.7 | 15.3 | 0.3 |
| Renowden et al 13 | – | – | 8.0 | 1.5 |
| Gallas et al 8 | 70.5 | 18.1 | 6.7 | 0.5 |
| Willinsky et al 15 | 43 | 20.3 | – | 2.1 |
| Present study | 55.2 | 34.0 | 19.4 | 1.0 |