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Journal of Korean Neurosurgical Society > Volume 34(2); 2003 > Article
Journal of Korean Neurosurgical Society 2003;34(2): 171-173.
Delayed Cerebellar Hemorrhage after Supratentorial Burr-Hole Drainage.
Chang Wook Hur, Seong Ho Kim, Sang Woo Kim, Chul Hun Chang
Department of Neurosurgery, Yeungnam University College of Medicine, Daegu, Korea. neuro@med.yu.ac.kr
ABSTRACT
We report two cases with delayed cerebellar hemorrhage developed after supratentorial burr-hole drainage, and review the literature. Burr-hole drainage was performed at both sides of bilateral chronic subdural hematomas. The total amount of drainage per day was more than 300ml of hematoma mixed with cerebrospinal fluid(CSF) and the differences in doses between the two sides were significant in both cases. The symptoms improved after drainage but abrupt deterioration of neurological status occurred with the development of cerebellar hemorrhage on postoperative day 4 and 5, in each case. Although both patients were elderly, 75 and 86 years old, they did not have any coagulation defect or episode of severe increase in their blood pressures during drainage. We believe that suprate-ntorial CSF overdrainage can cause cerebellar upward shift, with resultant injury of weakened cerebellar vessels in old age.
Key Words: Delayed cerebellar hemorrhage; Supratentorial burr-hole drainage; Old age; CSF overdrainage
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