title: De novo multiple dural arteriovenous fistulas and arteriovenous malformation after embolization of cerebral arteriovenous fistula: case report.
abstract: BACKGROUND
  A cerebral arteriovenous fistula is a rare neurovascular abnormality. It is very scarce when presenting with other cerebral arteriovenous malformations after embolization.
  
  
  METHODS
  We reported a case primarily presenting with cerebral arteriovenous fistula. When the fistula was embolized completely, de novo multiple dural arteriovenous fistulas and a small arteriovenous malformation occurred due to the hemodynamic change after the embolization. Embolization of parts of the fistulas for the second time led to an untreatable malformation which became curable. At the third time, the remaining fistula was cured.
  
  
  RESULTS
  The mechanism of the dural arteriovenous fistula and treatment strategy were discussed.
  
  
  CONCLUSIONS
  Venous hypertension is the main factor causing a dural arteriovenous fistula. Embolization of the fistulas step by step is recommended.
authors.affiliation: Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, No. 45 Changchun St., Xuanwu District, Beijing, People's Republic of China.
authors.forename: Yahui
authors.initials: Y
authors.lastname: Bai
authors.forename: Chuan
authors.initials: C
authors.lastname: He
authors.forename: Hongqi
authors.initials: H
authors.lastname: Zhang
authors.forename: Feng
authors.initials: F
authors.lastname: Ling
mesh_terms: D001164:Arteriovenous Fistula / Q000601:surgery; D001165:Arteriovenous Malformations / Q000150:complications / Q000209:etiology*; D020785:Central Nervous System Vascular Malformations / Q000150:complications / Q000209:etiology*; D002533:Cerebral Angiography; D002648:Child; D004621:Embolization, Therapeutic / Q000009:adverse effects*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male