Table 1.
Clinical and imaging characteristics
| Characteristic | All (n=75) | Vasospasm (n=28) | No vasospasm (n=47) |
|---|---|---|---|
| Median age (years) | 48 | 48 | 49 |
| Range | 28–73 | 28–73 | 28–73 |
| Median day of baseline CTP | 2 | 2 | 2 |
| Range | 0–3 | 0–3 | 0–3 |
| Female gender (n (%)) | 52 (69) | 21 (75) | 31 (66) |
| Ruptured aneurysm location (n (%)) | |||
| Anterior | 54 (72) | 21 (75) | 33 (70) |
| ACOM | 23 (31) | 8 (29) | 15 (32) |
| ACA | 5 (7) | 2 (7) | 3 (6) |
| ICA | 13 (17) | 5 (18) | 8 (17) |
| MCA | 11 (15) | 5 (18) | 6 (13) |
| Pericallosal | 2 (3) | 1 (4) | 1 (2) |
| Posterior | 21 (28) | 7 (25) | 14 (30) |
| PCOM | 15 (20) | 5 (18) | 10 (21) |
| PCA | 1 (1) | 0 | 1 (2) |
| Basilar | 1 (1) | 1 (4) | 0 |
| PICA | 3 (4) | 1 (4) | 2 (4) |
| SCA | 1 (1) | 0 | 1 (2) |
| Median aneurysm size (mm) | 5 | 5 | 5 |
| Range | 2–25 | 2–25 | 2–13 |
| Aneurysm treatment (n (%)) | |||
| Clip | 41 (55) | 16 (57) | 25 (53) |
| Coil | 33 (44) | 12 (43) | 21 (45) |
| Coil and clip | 1 (1) | 0 | 1 (2) |
| Hunt Hess grade | |||
| Median | 2 | 2.5 | 2 |
| Range | 1–5 | 1–5 | 1–4 |
| Low grade (grades 1–2) | 45 (60) | 14 (50) | 31 (66) |
| High grade (grades 3–5) | 30 (40) | 14 (50) | 16 (34) |
| Noncontrast CT findings | |||
| Hydrocephalus | 19 (25) | 7 (25) | 12 (26) |
| EVD | 28 (37) | 13 (46) | 15 (32) |
| Hydrocephalus and EVD | 9 (12) | 4 (14) | 5 (11) |
| No hydrocephalus or EVD | 19 (25) | 4 (14) | 15 (32) |