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  • Title: Transarterial and Transvenous Embolization for Posterior Condylar Canal Dural Arteriovenous Fistula.
    Author: Yokogawa R, Okawa M, Ishii A, Akiyama R, Yamao Y, Kikuchi T, Miyamoto S.
    Journal: J Neuroendovasc Ther; 2022; 16(1):39-45. PubMed ID: 37502030.
    Abstract:
    OBJECTIVE: Posterior condylar canal dural arteriovenous fistula (PCC DAVF) is extremely rare, with only four previously reported cases in the English literature. Cases may present tinnitus and radiculopathy. In cases where the drainer is around the brainstem, subarachnoid and intraventricular hemorrhages (IVHs) may occur. We describe the clinical presentation, angiographic imaging, and endovascular treatment strategy of a PCC DAVF. CASE PRESENTATION: A 30-year-old woman presented to our hospital with tinnitus and stiffness of the shoulder. Neuroimaging studies showed DAVF with fistulous points around right PCC consisted of a high-flow shunt, fed mainly by the occipital artery, and drained to the suboccipital cavernous sinus (SCS) and internal jugular vein. The lesion was treated with a combination of transvenous coil embolization and transarterial Onyx injection. The patient recovered immediately after intervention and had no neurological deficits in the follow-up visit. CONCLUSION: In this case, endovascular treatment was performed safely without recurrence so far. A strategy combining transvenous coil embolization and transarterial Onyx injection may be an effective treatment for PCC DAVF with high-flow shunt. Further case accumulation is desired.
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