Characteristics on admission in patients with large (≥10 mm) and small (<10 mm) aneurysms at time of rupture
| Characteristics | Size ≥10 mm | Size <10 mm |
|---|---|---|
| * The initial CT scan of three patients could not be retrieved for review. | ||
| Total | 27 | 94 |
| Men (%) | 9 (33) | 28 (30) |
| Mean age, y (±SD) | 55.0 (12.9) | 52.5 (14.4) |
| WFNS on admission (%) | ||
| 1 to 3 | 18 (67) | 78 (83) |
| 4 to 5 | 9 (33) | 16 (17) |
| Amount of cisternal blood* (%) | ||
| Median value or less | 16 (62) | 44 (48) |
| Above median value | 10 (39) | 48 (52) |
| Posterior circulation aneurysm (%) | 2 (7) | 10 (11) |
| Mean aneurysm size, mm (±SD) | 13.3 (3.5) | 5.7 (2.2) |
| Size, mm | ||
| <5 | 36 | |
| 5–10 | 58 | |
| 10–15 | 22 | |
| 15–20 | 3 | |
| >20 | 2 | |