Variable | Mean (SD) or N |
Time to evacuation (hours) | 38.2 (28.7) |
Positioning | |
Supine | 69 |
Supine, head turn | 2 |
Lateral | 5 |
Prone | 24 |
†Number of passes (>1) | 40 |
Side of hemorrhage | |
Left | 44 |
Right | 56 |
Procedure time (hours) | 2.5 (1.1) |
Preoperative hematoma volume (mL) | 49.7 (30.6) |
Postoperative hematoma volume (mL) | 6.2 (10.7) |
≤15 mL residual | 86 |
Evacuation percentage | 88.2 (20.3) |
Location | |
Lobar | 37 |
Deep | 63 |
Distance to surface <1 cm | 48 |
Distance to surface >1 cm | 52 |
*Median (IQR).
†A pass is defined as repassing of the sheath through the brain under stereotactic guidance after it has been completely removed either by the same or by an additional trajectory.