Abstract
A case of acute subdural hematoma immediately after surgical intervention for the contralateral chronic subdural hematoma in a regularly hemodialyzed patient is reported. A 59-year-old male was admitted because of progressive right hemiparesis after six years of regular hemodialysis. A computed tomography (CT) scan revealed typical left chronic subdural hematoma. Irrigation and drainage of the hematoma through a single burr hole was performed. The right hemiparesis was improved after surgery and a CT scan two hours after surgery revealed a marked reduction of the hematoma cavity. However, the patient suddenly became comatose eight hours after surgery, and another CT scan showed a contralateral acute subdural hematoma. The patient expired the following morning. Postmortem pathologic examination showed an old left subdural hematoma membrane and a massive subdural hematoma without any membrane in the right fronto-temporal area. Subdural hematoma has a higher mortality rate among hemodialysis patients than in the normal population, and many authors have reported disappointing results of surgical intervention in such cases. This case suggests that the high frequency of subdural hematoma can be attributed to the accompanying coagulopathy and the acute decrease of intracranial pressure. The authors emphasize careful management including peritoneal dialysis before and after the surgical intervention.
