Multiplicity of dural arteriovenous fistulas

摘要: Object. Dural arteriovenous fistulas (AVFs) are a well-known pathoanatomical and clinical entity. Excluding bilateral involvement of the cavernous sinus, multiple dural AVFs rare, with isolated reports in literature. The additional risk associated multiplicity is unknown, although it has been claimed that there greater hemorrhage at presentation. In group 284 patients consecutively treated single center, occurrence investigated its factors for identified. Methods. Among both cranial spinal AVFs, 20 were found. Nineteen (8.1%) 235 had fistulas, one (2%) 49 harbored two fistulas. Twelve found to have lesion separate sites, seven them three locations, patient four each different site. subgro...