¨Ï The Journal of Cerebrovascular and Endovascular Neurosurgery
Spontaneous Aggressive Conversion of Venous Drainage Pattern in Dural Arteriovenous Fistula Treated with Onyx Embolization
Yeongu Chung1, Seok Keun Choi1, Sung Ho Lee1, Eui Jong Kim2
Departments of 1Neurosurgery and 2Radiology, Kyung Hee University Hospital, College of Medicine, Kyung Hee University, Seoul, Korea
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¢ç. 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.
Key words : Conversion of venous drainage pattern, Cortical venous reflux, Dural arteriovenous fistula, Onyx embolization
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The Journal of Cerebrovascular and Endovascular Neurosurgery (JCEN), Department of Neurosurgery, The Catholic University of Korea, Bucheon St. Mary's Hospital 327, Sosa-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, Korea 420-717
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