Patient demographics and aneurysm characteristicsa
| 10-Caliber Coils (n = 106) | 15-Caliber Coils (n = 104) | |
|---|---|---|
| Female sex | 81 (76.4%) | 82 (78.8%) |
| Age (mean) (SD) (yr) | 57 (11) | 58 (10) |
| mRS at baseline >2 | 2 (1.9%) | 3 (2.9%) |
| Multiple aneurysms (No.) (%) | 29 (27.4%) | 29 (27.9%) |
| Ruptured aneurysms | ||
| (No.) (%) of treatment group | 35 (33.0%) | 36 (34.6%) |
| (No.) (%) recurrence | 0 | 1 (1.0%) |
| Unruptured aneurysms | ||
| (No.) (%) of treatment group | 71 (67.0%) | 68 (65.4%) |
| (No.) (%) recurrence | 4 (3.8%) | 3 (2.9%) |
| (No.) (%) symptomatic | 7 (6.6%) | 5 (4.8%) |
| Aneurysm size (maximal dimension) | ||
| Mean (SD) (mm) | 7.7 (2.6) | 7.8 (2.3) |
| Aneurysm neck | ||
| Mean (SD) (mm) | 3.2 (1.1) | 3.3 (1.3) |
| Neck ≥4.0 (mm) | 39 (36.8%) | 31 (29.8%) |
| Aneurysm location, anterior (No.) (%) | 81 (76.4%) | 88 (84.6%) |
| Internal carotid | 36 (34.0%) | 42 (40.4%) |
| Anterior cerebral | 32 (30.2%) | 31 (29.8%) |
| Middle cerebral | 13 (12.3%) | 15 (14.4%) |
| Aneurysm location, posterior (No.) (%) | 25 (23.6%) | 16 (15.4%) |
| Basilar | 18 (17.0%) | 12 (11.5%) |
| Other posterior | 7 (6.6%) | 4 (3.8%) |
↵a No significant difference was found between groups on any of the parameters.