458 - Treatment of Other Intracranial Dural Arteriovenous Fistulas

Abstract

A dural arteriovenous fistula is a rare, acquired pathologic shunt between dural arteries and dural venous sinuses, meningeal veins, or cortical veins. They are classified by their location, arterial supply, and venous drainage pattern. Cortical venous reflux is the most important predictor of future intracranial hemorrhage, and its presence should prompt consideration of treatment. Commonly, lesions with aggressive drainage patterns are treated with endovascular obliteration through a transarterial or transvenous approach. Open surgical disconnection is an effective treatment option for many dural arteriovenous fistulas that cannot be treated endovascularly.