Transvenous embolization of dural arteriovenous fistulas in cavernous regions through multiple venous routes(a report of 8 cases)

Objective To explore the method of transvenous embolization of dural arteriovenous fistulas(DAVF) in the cavernous regions and its curative effect.Methods Eight patients with DAVF in the cavernous regions were treated by transvenous embolization with microcoils and Onxy gel through the inferior petrosal sinus,superior ophthalmic vein and facial vein.Results DSA immediately after the embolization showed that the fistulas were completely occluded and the clinical symptoms disappeared in 7 patients,and there was residual fistula and the clinical symptoms were improved in 1 patients,in whom the clinical symptoms disappeared by the manual compression of the carotid artery.The common complications of the embolization included headache,vomiting and the abducent nerve paralysis,which were relieved a week later.No symptoms recurred in 5 patients who were followed up from 3 to 26 mouths.DSA 6 mouths after the embolization showed that the residual fistula disappeared in the patient with residual fistula.Conclusion The transvenous embolization via different venous routes is a safe and effective method to treat DAVF in the cavernous region.