Outcomes by aneurysm size
| Small aneurysms (%) (95% CI) | I2 | Large aneurysms (%) (95% CI) | I2 | |
| Complete angiographic occlusion | ||||
| Initial | 79 (46 to 100) | 0 | 3 (0 to 26) | 0 |
| Long term | 100 (84 to 100) | 0 | 28 (8 to 53) | 55.38 |
| Periprocedural outcomes | ||||
| Rupture | 0 (0 to 0) | 0 | 0 (0 to 2) | 0 |
| Thromboembolism | 12 (0 to 51) | 27.97 | 22 (7 to 41) | 21.24 |
| Morbidity | 18 (0 to 56) | 23.69 | 29 (13 to 48) | 19.99 |
| Mortality | 5 (0 to 41) | 29.28 | 27 (6 to 53) | 65.3 |
| Long term favorable neurologic outcome | 70 (34 to 97) | 24.06 | 44 (19 to 70) | 64.79 |
| Retreatment | 0 (0 to 2) | 12.64 | 2 (0 to 9) | 0 |