Ruptured Spinal Arteriovenous Malformation
Abstract: Ruptured spinal arteriovenous malformations are a rare cause of spinal cord injury. They should be considered especially in the differential diagnosis of younger patients with sudden onset of both severe back pain and neurological deficit. They may present with abrupt onset of hemorrhage, spinal edema and progressive myelopathy, and sudden thrombosis. They may occur in any part of the spinal cord anatomically. The pathophysiology and natural history of these lesions are poorly understood. When feasible, microsurgical resection is the most effective treatment for prevention of further hemorrhage or neurological deficit. In distinction to cerebral arteriovenous malformations, spinal cord malformations can often be treated effectively by pruning the extramedullary vasculature without removing the entire lesion.