ABSTRACT
Objective To investigate the clinical manifestations and imaging features of dural arterio-venous fistula of super petrosal venous drainage and treatment. Methods From May 2013 to September 2014,9 patients with petrosal vein drained dural arteriovenous fistula at the Department of Neurosurgery, Xuanwu Hospital,Capital Medical University and the Department of Neurosurgery,Beijing Haidian Hospital were enrolled retrospectively. The patients were treated with endovascular embolization or microsurgery,and the MRI and DSA examinations were improved,and the scores of the modified Aminoff&Logue scale (ALS) were performed before and after treatment. Results In the 9 patients,there were 3 females and 6 males. They all had different degrees of limb sensory and motor abnormalities,7 of them also had urination and/or bowel disorders,4 had cranial nerve dysfunction,including hoarseness,bucking,hiccup,and paralysis. Six patients received embolization treatment,3 received microsurgery,and they all achieved anatomic cure. The preoperative ALS score was 6. 0 ± 2. 7,and the score at 3 months after procedure was 2. 8 ± 1. 7. There was significant difference between before and after treatment (t=4. 816,P<0. 05). Conclusions The petrosal vein drained dural arteriovenous fistula is a kind of rare cerebrovascular malformation. The lesion involves a wide range. The clinical manifestations are severe. Both endovascular embolization and microsurgery can achieve a more ideal therapeutic effect. If the vascular condition is permitted,the interventional embolization treatment should be preferred.