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  • Title: Cone Beam CT to Guide Transorbital Treatment of a Cavernous Sinus Dural Arteriovenous Fistula in a Patient with Middle Meningeal Artery Origin of the Ophthalmic Artery.
    Author: Balaguruswamy MM, Palanisamy S, Mohanasundaram PK, Madeswaran K.
    Journal: Neurol India; 2022; 70(4):1649-1651. PubMed ID: 36076675.
    Abstract:
    Transorbital puncture to embolize cavernous sinus (CS) dural arteriovenous fistulas (DAVF) is a useful strategy when conventional transvenous routes are inaccessible. We report a case of bilateral CS DAVF associated with bilateral middle meningeal artery (MMA) origin of ophthalmic arteries (OA) who had recently undergone transvenous coil embolization. She presented with persistent symptoms of conjunctival congestion and proptosis in the left eye. Angiogram revealed residual left CS DAVF with dilated SOV. Inferior petrosal sinus or facial vein access was not possible. Transorbital access of the SOV was planned. Cone-beam CT (CBCT) angiography was used to delineate the relationship between the variant OA and SOV and also to plan a safe trajectory. Using fluoroscopy guidance, the SOV was punctured and embolization was done using Onyx-18. CBCT is a valuable tool in planning and executing transorbital treatment of CS DAVF, especially in the setting of variant OA.
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