title: Comparison of three diagnostic tests in detecting vestibular deficit in patients with peripheral vestibulopathy.
abstract: OBJECTIVE
  This study aimed to evaluate the results of the video head impulse test and of the caloric and rotatory chair tests in patients with dizziness. Agreement between test results was assessed and the best protocol for detecting peripheral vestibulopathy was identified.
  
  
  METHODS
  Participants comprised 116 patients, 75 with a peripheral vestibulopathy and 41 with non-peripheral vestibulopathy. The main outcome measures were classified as normal or abnormal according to our laboratory data.
  
  
  RESULTS
  Agreement between tests was low. Vestibulopathy testing that required all three results to be abnormal had a sensitivity of 0.547, a specificity of 0.878, and positive and negative predictive values of 0.891 and 0.514, respectively. Vestibulopathy testing that required just one result to be abnormal had a sensitivity of 0.933, a specificity of 0.292, and positive and negative predictive values of 0.701 and 0.705, respectively.
  
  
  CONCLUSIONS
  In peripheral vestibulopathy, there was weak concordance in the assessment of horizontal semicircular canal function among the different tests. However, the video head impulse test had sufficient statistical power to be recommended as the first-line test.
authors.affiliation: Department of Otorhinolaryngology,Hospital Sierrallana,Cantabria,Spain.
authors.forename: P
authors.initials: P
authors.lastname: Eza-Nuñez
authors.affiliation: Health Care Quality Unit,Hospital Marques de Valdecilla,Santander,Spain.
authors.forename: C
authors.initials: C
authors.lastname: Fariñas-Alvarez
authors.affiliation: Department of Otorhinolaryngology,Clínica Universidad de Navarra,University Hospital and Medical School - University of Navarra,Pamplona,Spain.
authors.forename: N Perez
authors.initials: NP
authors.lastname: Fernandez
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004244:Dizziness / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011446:Prospective Studies; D012027:Reflex, Vestibulo-Ocular / Q000502:physiology; D015837:Vestibular Diseases / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D014724:Vestibular Function Tests; D000160:Vestibulocochlear Nerve Diseases / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D055815:Young Adult
keywords: Dizziness; Head Thrust Test; Vertigo; Vestibulo-Ocular Reflex