Embolization of high-flow craniofacial vascular malformations with onyx.

摘要: BACKGROUND AND PURPOSE: Various techniques and materials have been used for the endovascular treatment of craniofacial high-flow arteriovenous vascular malformations, because their rarity precludes standardization treatment. The aim this retrospective review is to assess Onyx as primary embolic agent in these malformations. MATERIALS METHODS: Six patients with fistulas 3 malformations (AVMs) head neck region were treated intra-arterial (IA)/direct percutaneous injections Onyx. Adjunctive maneuvers during embolization included external compression arterial feeders or venous outflow (6 patients), balloon assist (4 direct draining vein remote fistula site (1 patient). n-butyl-2-cyanoacrylate (n-BCA) was addition rapid induction thrombosis a large pouch patient) cost containment purposes Four surgically after embolization. RESULTS: There no neurologic complications secondary procedure. shunt eliminated all fistulous lesions 2 AVMs. incomplete 1 patient AVM who declined further surgical procedures. Untoward events instances catheter entrapment (of 9 IA injections), blackish skin discoloration necessitating revision patient, difficulty deflation/wire withdrawal balloon-assisted CONCLUSION: appears be safe effective liquid use distinct advantages disadvantages compared n-BCA.