| Postoperative complication | Number of patients |
| Residual hematoma | 3 (2.7%) |
| Tension pneumocephalus | 2 (1.8%) |
| Seizures | 7 (6.2%) |
| Cortical or parenchymal hematoma | 5 (4.4%) |
| Recurrence | 9 (7.9%) |