title: Ocular versus cervical VEMPs in the diagnosis of superior semicircular canal dehiscence syndrome.
abstract: OBJECTIVE
  To determine whether cervical vestibular evoked myogenic potential (cVEMP) thresholds or ocular VEMP (oVEMP) amplitudes are more sensitive and specific in the diagnosis of superior semicircular canal dehiscence syndrome (SCDS).
  
  
  METHODS
  Prospective case-control study.
  
  
  METHODS
  Tertiary referral center.
  
  
  METHODS
  Twenty-nine patients with SCDS (mean age 48 yr; range, 31-66 yr) and 25 age-matched controls (mean age 48 yr; range, 30-66 yr).
  
  
  METHODS
  cVEMP and oVEMP in response to air-conducted sound. All patients underwent surgery for repair of SCDS.
  
  
  METHODS
  cVEMP thresholds; oVEMP n10 and peak-to-peak amplitudes.
  
  
  RESULTS
  cVEMP threshold results showed sensitivity and specificity ranging from 80% to 100% for the diagnosis of SCDS. In contrast, oVEMP amplitudes demonstrated sensitivity and specificity greater than 90%.
  
  
  CONCLUSIONS
  oVEMP amplitudes are superior to cVEMP thresholds in the diagnosis of SCDS.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA.
authors.forename: M Geraldine
authors.initials: MG
authors.lastname: Zuniga
authors.forename: Kristen L
authors.initials: KL
authors.lastname: Janky
authors.forename: Kimanh D
authors.initials: KD
authors.lastname: Nguyen
authors.forename: Miriam S
authors.initials: MS
authors.lastname: Welgampola
authors.forename: John P
authors.initials: JP
authors.lastname: Carey
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D004427:Ear Diseases / Q000175:diagnosis* / Q000503:physiopathology; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012665:Semicircular Canals / Q000503:physiopathology*; D015837:Vestibular Diseases / Q000175:diagnosis* / Q000503:physiopathology; D058585:Vestibular Evoked Myogenic Potentials / Q000502:physiology*