title: Transfrontal sinus approach for an anterior cranial fossa, ethmoidal, dural arteriovenous fistula.
abstract: BACKGROUND
  Ethmoidal dural arteriovenous fistulas (eDAVFs) are usually approached via a pterional or a frontal craniotomy. A more direct route to the fistula is possible through a purely transfrontal sinus approach. The aim of this report is to illustrate the interest of transsinus frontal approach for eDAVFs.
  
  
  METHODS
  The transfrontal sinus approach is described and illustrated in a case of an ethmoidal arteriovenous fistula. This approach is the most direct when treating an eDAVF surgically, allowing preserving neural structures with minimal to no brain manipulation.
  
  
  CONCLUSIONS
  For eDAVFs, the purely transfrontal sinus approach is highly worth considering in cases of large frontal sinuses.
authors.affiliation: Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Université de Montréal - Hôpital Notre-Dame, Montreal, Quebec, Canada.
authors.forename: Elsa
authors.initials: E
authors.lastname: Magro
authors.affiliation: Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Université de Montréal - Hôpital Notre-Dame, Montreal, Quebec, Canada.
authors.forename: Doortje
authors.initials: D
authors.lastname: Engel
authors.affiliation: Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Université de Montréal - Hôpital Notre-Dame, Montreal, Quebec, Canada.
authors.forename: Michel W
authors.initials: MW
authors.lastname: Bojanowski
keywords: Ethmoidal; dural arteriovenous fistula; surgical treatment; transfrontal sinus approach