Primary and secondary outcomes
| Surgical (n = 142) | Endovascular (n = 148) | |
|---|---|---|
| Primary outcomea (composite)b (No.) (%) | 13 (9) | 28 (19) |
| Failure to occlude aneurysm with allocated technique | 1 (1) | 5 (3) |
| Intracranial hemorrhage during FU | 2 (2) | 1 (1) |
| Saccular residual aneurysm | 10 (7) | 22 (15) |
| Missing primary outcome | 1 (1) | 0 |
| Secondary outcomes | n = 143 | n = 148 |
| No. of days hospitalized per treatment (mean) (median) (range) | 6.7 (5) (1–25) | 3.8 (1) (0–122) |
| No. of patients hospitalized for >5 days (No.) (%) | 69 (48) | 12 (8) |
| Patients with postoperative morbidity (discharge mRS > 2) (No.) (%) | 3 (2) | 4 (3) |
| Patients with new neurologic deficits following treatment (No.) (%) | 32 (22) | 19 (12) |
| Discharge location | ||
| Home (No.) (%) | 135 (94) | 142 (96) |
| Other hospital (No.) (%) | 4 (3) | 2 (1) |
| Rehabilitation center (No.) (%) | 3 (2) | 3 (2) |
| Death (No.) (%) | 1 (1) | 1 (1) |
| 1-year mRS (No.) (%) | ||
| 0 | 79 (55) | 93 (63) |
| 1 | 55 (38) | 41 (28) |
| 2 | 6 (4) | 11 (7) |
| 3 | 1 (1) | 1 (1) |
| 4 | 1 (1) | 1 (1) |
| 5 | 0 | 0 |
| 6 | 1 (1) | 1 (1) |
| Death and dependency (mRS >2) at 1 year (No.) (%) | 3 (2) | 3 (2) |
| Mean (SD) time of 1-year mRS assessment (mo) | 15.1 (9.4) | 15.4 (6.4) |
| Retreatment of index aneurysm during follow-up (No.) (%) | 3 (2) | 8 (5) |
| Angiographic outcome at 1 year | ||
| Complete aneurysm occlusion (No.) (%) | 114 (80) | 84 (57) |
| Residual aneurysm neck (No.) (%) | 16 (11) | 40 (27) |
| Saccular residual aneurysm (No.) (%) | 11 (8) | 23 (16) |
| 1-year imaging not available (No.) (%)c | 2 (1) | 1 (1) |
| CTA/MRA/catheter angiographic determinations (No.) (%) | 116 (81), 14 (10), 11 (8) | 14 (10), 106 (72), 27 (18) |
| Mean (SD) time of 1-year imaging assessment (mo) | 15.7 (10.0) | 15.2 (8.2) |
Note:—FU indicates follow-up.
↵a RR for the primary outcome: 2.07; 95% CI, 1.12–3.83; P = .021.
↵b One primary outcome was assigned per patient. When a patient had >1 primary outcome, it was assigned on the basis of the following hierarchy: intracranial hemorrhage > failure of technique > residual aneurysm.
↵c There was 1 death in each group.