Cerebellar hemorrhage as an early complication of spine surgery.

Goal: The present paper investigates the etiology and pathogenesis of cereb ellar hemorrhage after spine surgery. Method: This pager reports two patien ts in those this complication was seen. In respect to the current literatur e we discuss the etiology and pathogenesis of cerebellar hemorrhage due to spine surgery. Results: Cerebellar hemorrhages represent a life-threatening situation. There are no reports in the literature about cerebellar hemorrh age as an early complication of intraoperative dura injuries in spine surge ry. It seems that a bigger cerebrospinal fluid loss is responsible for the developing of cerebellar hemorrhages. The loss creates a pressure gradient from infratentoriell to site of lesion and also leads to mechanical stress on cerebellar blood vessels such as traction, tearing and kinking. Conclusi ons: Every condition after spine surgery with dura injuries and neurologica l deficits should be carefully evaluated and intracranial hypotension as we ll as hemorrhage should be ruled out.