Subarachnoid Hemorrhage

摘要

A 17-year-old boy had a sudden headache and briefly lost consciousness while at soccer practice. On arrival at the emergency department, he appeared drowsy and reported having the worst headache he had ever had. His blood pressure was 186/92 mm Hg. The neurologic examination was normal. Computed tomography (CT) of the head without contrast enhancement showed diffuse subarachnoid hemorrhage and enlargement of the temporal horns of the lateral ventricles. How should this patient be further evaluated and treated?