Table 1.
Patient baseline characteristics and preoperative presentation
| Patients (n = 345) | |
|---|---|
| Sex | |
| Female | 266 (77.1%) |
| Male | 79 (22.9%) |
| Age in years | |
| Mean (± SD) | 58.1 (± 13.7) |
| Range | 24–90 |
| Physical status class | |
| ASA 1 | 45 (13.0%) |
| ASA 2 | 199 (57.7%) |
| ASA 3 | 98 (28.4%) |
| ASA 4 | 3 (0.9%) |
| ASA 5 | 0 (0.0%) |
| ASA 6 | 0 (0.0%) |
| Disability score | |
| mRS 0 | 67 (19.4%) |
| mRS 1 | 164 (47.5%) |
| mRS 2 | 67 (19.4%) |
| mRS 3 | 28 (8.1%) |
| mRS 4 | 10 (2.9%) |
| mRS 5 | 9 (2.6%) |
| mRS 6 | 0 (0.0%) |
| Symptomatologya | |
| Focal neurological deficit | 184 (53.3%) |
| Headache | 120 (34.8%) |
| Seizure | 58 (16.8%) |
| Mental alteration | 52 (15.1%) |
aPercentages do not add up to 100%, as some patients reported more than one symptom
Abbreviations: SD, standard deviation; ASA, American Society of Anesthesiologists; mRS, modified Rankin Scale