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Abstract

Dural arteriovenous fistulas involving the transverse-sigmoid sinus (T-S dAVFs) are sometimes isolated because this affected sinus is often thrombosed. It is difficult to perform to microcatheter cannulation to the isolated sinus through the thrombosed portion. We are now treating these T-S dAVFs by transfemoral transvenous embolization via the ipsilateral side even if the affected sinus is thrombosed and isolated or not. We use a triaxial system (6 Fr. guiding catheter / 4 Fr. diagnostic catheter / microcatheter) to emphasize the pushability and handling of the microcatheter. And we insert 4 Fr. Catheter into the affected sinus. So we can perform microcatheter cannulation into the isolated and affected sinus for treatment by coil embolization with various detachable coils.

Keywords

dural arteriovenous fistulas isolated sinus transverse-sigmoid sinus and transvenous embolization

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Transfemoral Transvenous Embolization of Dural Arteriovenous Fistulas Involving the Isolated Transverse-Sigmoid Sinus

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