Clinical course and outcome in patients with large (≥10 mm) and small (<10 mm) aneurysms at time of rupture of the aneurysm
| Characteristic | Size ≥10 mm, n = 27 | Size <10 mm, n = 94 | RR (95% CI) |
|---|---|---|---|
| Values in the left and middle columns are numbers (%) of patients. | |||
| RR = relative risk; GOS = Glasgow Outcome Scale. | |||
| Aneurysm surgery | 18 (67) | 77 (82) | 0.81 (0.61–1.1) |
| Difficult operation | 4 (15) | 12 (13) | 1.16 (0.41–3.3) |
| Rebleed | 8 (30) | 20 (21) | 1.39 (0.69–2.8) |
| Ischemia | 5 (19) | 24 (26) | 0.73 (0.31–1.7) |
| Outcome at 3 months (GOS) | |||
| Good (5) | 6 (22) | 44 (47) | |
| Independent (4) | 4 (15) | 11 (12) | |
| Dependent on help (3) | 6 (22) | 21 (22) | |
| Vegetative state (2) | 0 (0) | 0 (0) | |
| Death (1) | 11 (41) | 18 (19) | 2.1 (1.1–3.9) |
| Poor outcome (GOS 1,2,3) | 17 (63) | 39 (41) | 1.5 (1.0–2.2) |
| Cause of death | (n = 11) | (n = 18) | |
| Initial bleeding | 3 (11) | 3 (3) | 3.5 (0.75–16.3) |
| Rebleeding | 3 (11) | 11 (11) | 0.95 (0.29–3.2) |
| Ischemia | 3 (11) | 3 (3) | 3.5 (0.75–16.3) |
| Other cause | 2 (7) | 1 (1) | |