Patient demographics and aneurysm characteristics
| No. (%), Mean (SD) | |
|---|---|
| Total No. of patients | 763 |
| Sex (female) | 510 (66.8) |
| Mean age (yr) | 59.9 (SD, 11.7) |
| Smoking statusa | |
| Current | 210 (31.2) |
| Former | 193 (28.7) |
| Nonsmoker | 270 (40.1) |
| Ruptured aneurysm | 230 (30.1) |
| Aneurysm location | |
| AcomA | 223 (29.2) |
| Basilar tip | 123 (16.1) |
| ACA | 56 (7.3) |
| ICA | 15 (2.0) |
| MCA | 206 (27.0) |
| PcomA | 54 (7.1) |
| PICA | 14 (1.8) |
| ICA terminus | 60 (7.9) |
| SCA | 5 (0.7) |
| VA | 6 (0.8) |
| PCA | 1 (0.1) |
| Mean aneurysm neck (mm)b | 4.0 (SD, 1.4) |
| Mean maximal diameter (mm) | 6.9 (SD, 2.4) |
| Mean aneurysm height (mm)c | 6.1 (SD, 2.3) |
| Mean aneurysm width (mm)d | 5.8 (SD, 2.1) |
| Bifurcation aneurysms | 639 (83.7) |
| Daughter sace | 215 (30.1) |
| Vessel from aneurysm wallf | 78 (10.4) |
| Preprocedural AP/ACg | |
| None | 327 (46.6) |
| Single agent | 91 (12.1) |
| Two agents | 283 (40.4) |
↵Data missing for a = 90, b = 66, c = 10, d = 4, e = 351, f = 49, g = 10, h = 62.
Note:—AcomA indicates anterior communicating artery; PcomA, posterior communicating artery; ACA, anterior cerebral artery; SCA, superior cerebellar artery; VA, vertebral artery; PCA, posterior cerebral artery; AP/AC, antiplatelets/anticoagulants.