Risk factors for unfavorable clinical outcomes in patients with basilar artery trunk aneurysms
| Clinical outcomes | Univariate analysis | Multivariate analysis | ||||
| Favorable (n=92) | Unfavorable (n=19) | P value | OR | 95% CI | P value | |
| Age (years) | 57±11 | 63±10 | 0.037 | 1.09 | 1.02 to 1.17 | 0.008 |
| Women | 24 (21.6) | 6 (5.4) | 0.624 | |||
| Smoking | 41 (36.9) | 6 (5.4) | 0.297 | |||
| Diabetes | 6 (5.4) | 4 (3.6) | 0.066 | |||
| Hypertension | 65 (5.85) | 16 (14.4) | 0.226 | |||
| Hyperlipidemia | 28 (25.2) | 5 (4.5) | 0.721 | |||
| Ischemic stroke | 25 (22.5) | 7 (6.3) | 0.397 | |||
| Incidental finding | 20 (18.0) | 2 (1.8) | 0.355 | |||
| Ruptured aneurysm | 20 (18.0) | 6 (5.4) | 0.357 | |||
| HH grade (IV–V) | 2 (1.8) | 3 (2.7) | 0.035 | 30.67 | 2.39 to 393.19 | 0.009 |
| mFS score (III–IV) | 14 (12.6) | 6 (5.4) | 0.107 | |||
| Sac aneurysm | 56 (50.5) | 13 (11.7) | 0.537 | |||
| Circumferential aneurysm | 31 (27.9) | 8 (7.2) | 0.485 | |||
| Coexisting BA stenosis | 15 (13.8) | 1 (0.9) | 0.298 | |||
| AICA involvement | 11 (9.9) | 8 (7.2) | 0.001 | |||
| Multiple stents | 32 (28.8) | 7 (6.3) | 0.864 | |||
| Flow diversion | 11 (9.9) | 3 (2.7) | 0.705 | |||
| Complete aneurysm obliteration | 49 (44.1) | 9 (8.1) | 0.640 | |||
| Infarction complication | 19 (17.1) | 10 (9.0) | 0.004 | |||
| Hemorrhage complication | 1 (0.9) | 3 (2.7) | 0.016 | 33.98 | 1.12 to 1031.37 | 0.043 |
| Hydrocephalus requiring shunting | 2 (1.8) | 3 (2.7) | 0.035 | |||
| Aneurysm size (mm) | 9.2±5.8 | 15.2±7.7 | 0.004 | 1.22 | 1.10 to 1.34 | <0.001 |
| Lesion length (mm) | 8.3±6.0 | 13.7±7.8 | 0.001 | |||
Variables are expressed as mean±SD or number (%) of patients.
AICA, anterior inferior cerebellar artery; BA, basilar artery; HH, Hunt and Hess; mFS, modified Fisher scale.