Relationship between blood viscosity and cerebral ischemia after surgical treatment of ruptured intracranial aneurysms.
To determine the role of blood viscosity after surgical treatment of ruptured intracranial aneurysms, the relationship between blood viscosity and clinical condition was examined in 17 patients. A total of 213 blood samples were analyzed. An inverse correlation was found between blood viscosity and level of consciousness; in addition, blood viscosity was higher when focal neurologic deficit was observed. Hematocrit was similarly related to clinical condition, although the correlations observed were less strong. Postoperative plasma viscosity was higher in patients with focal neurologic deficit. Regular blood viscosity measurements are of value in patients at risk for developing cerebral ischemia.
D001809:Blood Viscosity; D002545:Brain Ischemia / Q000097:blood* / Q000209:etiology; D003244:Consciousness Disorders / Q000097:blood; D005260:Female; D006400:Hematocrit; D006801:Humans; D002532:Intracranial Aneurysm / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000097:blood*; D013345:Subarachnoid Hemorrhage / Q000601:surgery