• World Neurosurg · Jan 2020

    Unilateral Venous Approach to Contralateral or Bilateral Carotid Cavernous Shunts.

    • Erez Nossek, Kim Lombardo, Julia R Schneider, Kevin Kwan, David J Chalif, and Avi Setton.
    • Department of Neurosurgery, NYU Medical Center, New York, New York, USA. Electronic address: erez.nossek@nyulangone.org.
    • World Neurosurg. 2020 Jan 1; 133: e479-e486.

    BackgroundCavernous carotid fistulas (CCF) are anatomically complex vascular lesions. Treatment via the venous approach has been previously described and is highly dependent on the patency of the drainage pathways. The use of a unilateral approach to contralateral or bilateral shunts is technically challenging and not commonly described. We present our experience with the unilateral across-the-midline approach to both cavernous sinuses to treat shunts according to anatomic compartments to achieve anatomic cure.MethodsPatients included in this study presented with either bilateral or unilateral shunts with unilateral venous drainage. We used a transarterial guiding catheter for road mapping and control angiography. A venous triaxial system was used to achieve support for distal navigation across the midline via the coronary sinus to the contralateral cavernous sinus. Coils were favored for embolization, with occasional complementary liquid embolic material.ResultsFive patients underwent complete occlusion in a single session. One patient required additional complementary transarterial embolization. Despite a successful unilateral approach to bilateral cavernous sinuses, 1 patient needed an additional ipsilateral transophthalmic venous approach to obliterate the anterior compartment of the cavernous sinus. No complications were encountered. Complete angiographic cure was observed in all patients by the end of the final procedures, with persistent occlusion in their follow-up imaging.ConclusionsCareful inspection of the venous anatomy and fistulization sites is critical when treating unilateral or bilateral carotid cavernous shunts. The contralateral venous route can serve as a safe approach when visualized. Crossing the midline via the anterior or posterior coronary sinuses is feasible and efficacious.Copyright © 2019 Elsevier Inc. All rights reserved.

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