Surgical procedure and general management

All patients underwent hematoma evacuation by a single burr-hole craniostomy and irrigation with isotonic saline solution, followed by a 1-day of external continuous drainage. Unilateral surgery was performed when the laterality of neurological symptoms could only be attributed to the thicker hematoma. Any antiplatelet and anticoagulant therapy was continued as the influence of the intake over recurrence was not consistent between reported studies and increased the possibility of ischemia might impair the activity of daily living greater and symptoms followed by the ischemia could be persistent.