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연세대학교 의과대학 Yonsei Medical Journal Yonsei Medical Journal 제60권 제11호
발행연도
2019.1
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1,112 - 1,115 (4page)

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Direct puncture and embolization of the transverse sinus (TS) for treatment of dural arteriovenous fistula (DAVF) is typically performedwith coils with or without glue. We report a case of DAVF at the left TS that was treated with Onyx embolization via directpuncture of the TS. A 75-year-old woman presented with tremor, festinating gait, and dysarthria. A left TS-DAVF with retrogradesuperior sagittal sinus and cortical venous reflux (Cognard type IIa+b) was identified on cerebral angiography, and both TSs wereoccluded with thrombi. We considered that achieving complete cure by transvenous embolization via the femoral vein or transarterialembolization via occipital feeders would be difficult. Thus, we performed a small craniotomy at the occipital bone to puncturethe TS. The midportion of the TS was directly punctured with a 21-G microneedle under fluoroscopic guidance. We inserteda 5-F sheath into the TS. A microcatheter was then navigated into the affected sinus. Coils were placed through the microcatheterto support Onyx formation by reducing the pressure of shunting flow. Onyx embolization was performed with the same microcatheter. The DAVF was almost completely occluded except for the presence of minimal shunting flow to the proximal TS. After 1 week,time-of-flight magnetic resonance angiography showed complete resolution of DAVF. The patient showed resolved tremor andmarkedly improved mental status at 1-month follow up. Direct puncture and embolization of the TS using coils and Onyx is effectiveand feasible method for the treatment of DAVF when other approaches seem difficult.

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