title: Normal Gain of VOR with Refixation Saccades in Patients with Unilateral Vestibulopathy.
abstract: OBJECTIVE
  To characterize the response in the video head-impulse test for the assessment of the vestibulo-ocular reflex (VOR) in patients because of vertigo and dizziness.
  
  
  METHODS
  After rightward and leftward head impulses, the following results evaluated were: gain of the reflex and appearance of refixation saccades. A particular type of response (normal gain VOR and refixation saccades) was evaluated in a group of patients.
  
  
  RESULTS
  In patients with a unilateral abnormality consisting of normal gain and refixation saccades, there was a close concordance with the diseased side and the side to which head impulses elicited the abnormal result.
  
  
  CONCLUSIONS
  In the assessment of patients with dizziness, finding a normal gain VOR with refixation saccades indicates the existence of a peripheral vestibulopathy and localizes to the side of the lesion.
authors.affiliation: Department of Otorhinolaryngology, University of Navarra Faculty of Medicine, Pamplona, Spain. nperezfer@unav.es.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Perez-Fernandez
authors.forename: Paloma
authors.initials: P
authors.lastname: Eza-Nuñez
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004244:Dizziness / Q000209:etiology / Q000503:physiopathology; D005260:Female; D064087:Head Impulse Test / Q000379:methods; D019416:Head Movements / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012027:Reflex, Vestibulo-Ocular; D015203:Reproducibility of Results; D012438:Saccades / Q000502:physiology; D014717:Vertigo / Q000209:etiology / Q000503:physiopathology; D015837:Vestibular Diseases / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology