Dural Arteriovenous Fistula on the Wall of the Superior Sagittal Sinus Treated with Transarterial Embolization with Onyx: A Case Report

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Objective: Dural arteriovenous fistula (DAVF) is classified as sinus type if it occurs in a venous sinus and as non-sinus type if it directly flows into a cortical vein. The latter is considered to have a high risk of hemorrhage because blood flow directly returns to the cerebral vein.

Case Presentation: A 63-year-old man presenting with right hemiparesis and dysarthria was diagnosed with DAVF. We diagnosed transient ischemic attack (TIA) due to left internal carotid artery stenosis or cortical reflux of the DAVF. Treatment of DAVF was undertaken first, followed by carotid artery stenting (CAS) of the internal carotid artery stenosis.

Conclusion: Transarterial embolization (TAE) can be used for the treatment of DAVF located on the wall of the superior sagittal sinus (SSS). Further studies with greater accumulation of case are required.