title: Ocular and cervical VEMPs: a study of 74 patients suffering from peripheral vestibular disorders.
abstract: OBJECTIVE
  This study compared the results of ocular and cervical vestibular evoked myogenic potentials (VEMPs) tests for healthy subjects with those for patients suffering from vestibular diseases to try to determine the clinical usefulness of combined ocular and cervical STB VEMP testing.
  
  
  METHODS
  Thirty-two healthy volunteers and 74 patients with unilateral vestibular dysfunction underwent tests for ocular and cervical VEMPs induced by AC 100 dB nHL 500 Hz STB combined with caloric and audiometric tests.
  
  
  RESULTS
  In healthy subjects, the mean P13-N23 peak-to-peak amplitude of cervical VEMPs was much larger than the mean n1-p1 peak-to-peak amplitude of ocular VEMPs. In patients, cervical and ocular VEMPs may be dissociated. The peak-to-peak amplitude of both cervical and ocular tests was abnormally in most of patients suffering from vestibular lesions. No correlations were found between VEMPs, the degree of hearing loss and/or of horizontal canalar paresis.
  
  
  CONCLUSIONS
  Ocular and cervical VEMPs provide complementary information about saccular and utricular otolithic function.
  
  
  CONCLUSIONS
  Testing of ocular and cervical VEMPs allows the crossed vestibulo-ocular reflex and ipsilateral sacculo-collic reflex to be determined. These tests can help describe vestibular lesions and assess the effects of treatment and should therefore be used clinically.
authors.affiliation: CESEM, CNRS UMR 8194, Université Paris Descartes, Centre Universitaire des Saints-Pères, 45 rue des Saints-Pères, 75270 Paris Cedex 06, France.
authors.forename: Elodie
authors.initials: E
authors.lastname: Chiarovano
authors.forename: Franck
authors.initials: F
authors.lastname: Zamith
authors.forename: Pierre-Paul
authors.initials: PP
authors.lastname: Vidal
authors.forename: Catherine
authors.initials: C
authors.lastname: de Waele
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods; D000328:Adult; D000368:Aged; D002150:Caloric Tests; D004576:Electromyography / Q000379:methods; D005123:Eye; D005133:Eye Movements / Q000502:physiology*; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D034381:Hearing Loss / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012027:Reflex, Vestibulo-Ocular / Q000502:physiology*; D015837:Vestibular Diseases / Q000150:complications / Q000503:physiopathology*; D058585:Vestibular Evoked Myogenic Potentials / Q000502:physiology*; D055815:Young Adult