Subgroup analysis of fusiform aneurysms
| Aneurysm Characteristics | With Stroke | Without Stroke | P Value |
|---|---|---|---|
| Aneurysm size (mm) | <.001 | ||
| Mean (No.) | 24.5 ± 12.5 (12) | 13.6 ± 6.8 (88) | |
| Median (range) | 21.0 (13.0–55.0) | 11.8, (1.6–42.0) | |
| Aneurysm neck (mm) | .010 | ||
| Mean (No.) | 26.2 ± 19.5 (9) | 10.2 ± 5.2 (60) | |
| Median (range) | 22.0 (8.0–53.0) | 9.0 (2.0–27.0) | |
| Aneurysm location | .211 | ||
| Posterior circulation | 38.5% (5/13) | 22.5% (20/89) | |
| Anterior circulation | 61.5% (8/13) | 77.5% (69/89) | |
| Aneurysm location by vessel | .677 | ||
| ICA | 53.8% (7/13) | 59.6% (53/89) | |
| ACA | 0.0% (0/13) | 1.1% (1/89) | |
| BA | 23.1% (3/13) | 10.1% (9/89) | |
| MCA | 7.7% (1/13) | 13.5% (12/89) | |
| PcomA | 0.0% (0/13) | 0.0% (0/89) | |
| VA | 15.4% (2/13) | 10.1% (9/89) | |
| Other | 0.0% (0/13) | 5.6% (5/89) | |
| Presented with ruptured aneurysm | 0.0% (0/13) | 5.6% (5/89) | .381 |
Note:—BA indicates basilar artery; VA, vertebral artery; PcomA, posterior communicating artery; ACA, anterior cerebral artery.