Thalamic Dementia in the Setting of Dural Arteriovenous Fistula: A Rare Neurologic Sequelae (P5-14.008)

Dural arteriovenous fistulae (dAVF) are direct pathologic anastomoses between meningeal arterial and dural venous sinuses or cortical veins, lacking parenchymal niduses, that account for approximately 10–15% of all intracranial vascular malformations. Neurologic sequelae of dAVF include acute complications such as hemorrhage, seizure, and headache. Reversible thalamic or cortical dementia have been rarely described as a potential sequalae of dAVF. Herein, we describe a patient with thalamic dementia secondary to dAVF complicated by deep cerebral venous sinus thrombosis.