title: Electronystagmography findings in spinocerebellar ataxia type 3 (SCA3) and type 2 (SCA2).
abstract: OBJECTIVE
  To describe the alterations observed in electronystagmography (ENG) of patients with spinocerebellar ataxia (SCA) types 2 and 3.
  
  
  METHODS
  Sixteen patients were studied and the following procedures were carried out: anamnesis, otorhinolaryngological and vestibular evaluations.
  
  
  RESULTS
  The clinical findings in the entire group of patients were: gait disturbances (93.75%), dysarthria (43.75%), headache (43.75%), dizziness (37.50%) and dysphagia (37.50%). In the vestibular exam, the rotatory (62.50%) and caloric (75%) tests were among those which presented the largest indexes of abnormalities; the presence of alterations in the exams was 87.50%, with a predominance of central vestibular disorders in 68.75% of the exams.
  
  
  CONCLUSIONS
  Vestibular exams could be an auxiliary tool to investigate SCAs, besides a precise clinical approach and, particularly, molecular genetic tests.
authors: Otoneurology Unit, MSc and PhD Program in Communication Disorders, Tuiuti University of Paraná, Curitiba, PR, Brazil. 　bianca.zeigelboim@utp.br
authors: Bianca Simone
authors: BS
authors: Zeigelboim
authors: Hélio A G
authors: HA
authors: Teive
authors: Rosane
authors: R
authors: Sampaio
authors: Ari Leon
authors: AL
authors: Jurkiewicz
authors: Paulo B N
authors: PB
authors: Liberalesso
mesh_terms: D000293:Adolescent; D000328:Adult; D004584:Electronystagmography; D005260:Female; D005787:Gene Frequency; D006801:Humans; D017827:Machado-Joseph Disease / Q000235:genetics / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D020754:Spinocerebellar Ataxias / Q000235:genetics / Q000503:physiopathology*