Onyx embolisation of cavernous sinus dural arteriovenous fistula via direct percutaneous transorbital puncture

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The cavernous sinus dural arteriovenous fistulas of three patients were successfully embolised by using Onyx (Onyx Liquid Embolic System, MTI, Irvine, CA, USA) as the sole embolic agent, through direct percutaneous transorbital punctures of the cavernous sinuses. Our early experience suggests that this direct approach, coupled with the unique physical properties of Onyx, is a safe and effective alternative to treat cavernous sinus dural arteriovenous fistulas when the conventional transvenous routes are inaccessible.

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