title: [Rapidly progressive dementia and parkinsonism associated to multiple dural arteriovenous fistulas].
abstract: BACKGROUND
  Rapidly progressive dementias are an infrequent group of diseases characterised by cognitive deterioration and other neurological disorders that develop over a period ranging from weeks to months. Their causation is varied and includes a large number of neurodegenerative, toxic, metabolic, autoimmune, infectious and vascular conditions.
  
  
  METHODS
  We report the case of a 69-year-old male who was admitted to hospital due to a rapidly progressive dementia and parkinsonism caused by multiple dural arteriovenous fistulas, which were successfully treated by means of endovascular therapy.
  
  
  CONCLUSIONS
  Dural arteriovenous fistulas are anomalous connections between the dural arteries and the venous sinuses or cortical veins that are an unusual cause of rapidly progressive dementia. They must, however, be taken into account, given the availability of a specific treatment with reversal of the symptoms.
authors.affiliation: Hospital Alcivar, Guayaquil, Ecuador.|Hospital Roberto Gilbert Elizalde, Guayaquil, Ecuador.
authors.forename: P
authors.initials: P
authors.lastname: Mejia
authors.affiliation: Universidad de Cuenca, , Cuenca, Ecuador.|Hospital Jose Carrasco Arteaga, Azuay, Ecuador.
authors.forename: L M
authors.initials: LM
authors.lastname: Piedra
authors.affiliation: Hospital Jose Carrasco Arteaga, Azuay, Ecuador.
authors.forename: X
authors.initials: X
authors.lastname: Merchan-Del Hierro
mesh_terms: D000368:Aged; D020785:Central Nervous System Vascular Malformations / Q000150:complications* / Q000209:etiology / Q000503:physiopathology / Q000628:therapy; D002533:Cerebral Angiography; D003128:Coma / Q000209:etiology; D003704:Dementia / Q000209:etiology*; D018450:Disease Progression; D004621:Embolization, Therapeutic; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D059906:Neuroimaging; D009460:Neurologic Examination; D020734:Parkinsonian Disorders / Q000209:etiology*; D020127:Recovery of Function