Intracranial chronic subdural hematoma following spinal anesthesia: report of a case.

The authors report a case of intracranial chronic subdural hematoma after spinal anesthesia for a perianal abscess. The chronic subdural hematoma was successfully treated by burr hole drainage. This complication should be suspected in patients who complain of prolonged headache, or who develop signs of increased intracranial pressure or neurologic deficits after spinal anesthesia.