title: Influence of facial paresis on ocular vestibular-evoked myogenic potentials.
abstract: CONCLUSIONS
  The ocular vestibular-evoked myogenic potential (oVEMP) test with eyes up condition may help differentiate facial paresis with and without vestibular nerve deficit, while the oVEMP test with the eyes closed condition is not reliable for testing patients with facial paresis.
  
  
  OBJECTIVE
  This study investigated the influence of facial paresis on oVEMPs via the eyes up versus eyes closed conditions.
  
  
  METHODS
  Twenty patients with unilateral facial paresis underwent a battery of audiovestibular function tests. The oVEMP test was performed via bone-conducted vibration stimuli with the eyes up and eyes closed conditions used in a randomized order.
  
  
  RESULTS
  Under the eyes up condition, the rate of abnormal oVEMP tests in the lesion ear was 30%, significantly higher than the 0% in the opposite healthy ear, indicating that the lesion ear not the recorded eye is responsible for abnormal oVEMPs. However, abnormal oVEMP test results of lesion ears under the eyes closed condition did not significantly differ from those of opposite healthy ears. Analysis of caloric and oVEMP test results indicated that both tests obtained normal responses from 10 ears, and abnormal responses from 5 ears. The caloric and oVEMP test results were significantly correlated.
authors.affiliation: Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan.
authors.forename: Yen-Chieh
authors.initials: YC
authors.lastname: Huang
authors.forename: Yi-Ho
authors.initials: YH
authors.lastname: Young
mesh_terms: D000328:Adult; D000368:Aged; D002150:Caloric Tests; D005123:Eye / Q000503:physiopathology; D005154:Facial Nerve / Q000503:physiopathology; D005158:Facial Paralysis / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D058585:Vestibular Evoked Myogenic Potentials; D055815:Young Adult