title: Association between Vestibular Function and Hearing Outcome in Idiopathic Sudden Sensorineural Hearing Loss.
abstract: OBJECTIVE
  To investigate whether different vestibular function tests such as cervical vestibular evoked myogenic potential (cVEMP) and caloric test were correlated with severity, pattern and prognosis in idiopathic sudden sensorineural hearing loss (ISSNHL).
  
  
  METHODS
  Ninety-two patients with unilateral ISSNHL were subjected to complete audiovestibular evaluation. cVEMP and caloric test results were compared with patients' initial and final audiogram. We classified patients in 4 groups as cochlear nerve (C) type, cochlear and superior vestibular nerve (C+S) type, cochlear and inferior vestibular nerve (C+I) type and cochlear, superior vestibular nerve, inferior vestibular nerve (C+S+I) type, for evaluation of the results. cVEMP and caloric tests were compared among the groups.
  
  
  RESULTS
  Abnormal caloric test results and abnormal cVEMP results were found in 50% and 31.6% patients, respectively. Multivariate analysis showed that abnormal caloric result (canal paresis) is a significant negative prognostic factor.
  
  
  CONCLUSIONS
  Initial vestibular function test can be valuable in predicting the final outcome in patients with ISSNHL.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Ho-Seok
authors.initials: HS
authors.lastname: Lee
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Ji-Nam
authors.initials: JN
authors.lastname: Song
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Jung Mee
authors.initials: JM
authors.lastname: Park
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Kyoung Ho
authors.initials: KH
authors.lastname: Park
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Hyun Bum
authors.initials: HB
authors.lastname: Kim
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Jae-Hyun
authors.initials: JH
authors.lastname: Seo
keywords: Hearing outcome; Sudden sensorineural hearing loss; Vestibular function