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KMID : 1005420160180040396
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Journal of Cerebrovascular and Endovascular Neurosurgery
2016 Volume.18 No. 4 p.396 ~ p.401
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Spontaneous Aggressive Conversion of Venous Drainage Pattern in Dural Arteriovenous Fistula Treated with Onyx Embolization
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Chung Yeong-U
Choi Seok-Keun
Lee Sung-Ho
Kim Eui-Jong
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Abstract
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We report a case of dural arteriovenous fistula (DAVF) that showed spontaneous conversion of venous drainage pattern from Borden type II to type III within a four month period of follow-up. Upon admission, the patient presented with aggravated neurologic status and newly developed seizure. After admission, endovascular embolization was performed through the middle meningeal artery with Onyx®. Complete obliteration of dural arteriovenous shunt was confirmed by angiography, and the patient's clinical symptoms improved. Although most cases of DAVF show benign clinical course and conversion pattern, close follow-up is required to detect potential aggravation.
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KEYWORD
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Conversion of venous drainage pattern, Cortical venous reflux, Dural arteriovenous fistula, Onyx embolization
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