title: Abnormality of cervical vestibular-evoked myogenic potentials and ocular vestibular-evoked myogenic potentials in patients with recurrent benign paroxysmal postitional vertigo.
abstract: CONCLUSIONS
  Our results show that cervical vestibular-evoked myogenic potential (cVEMP) or ocular VEMP (oVEMP) abnormalities in the recurrent benign paroxysmal positional vertigo (BPPV) group were significantly higher than those in the non-recurrent BPPV group. Therefore, we can infer that VEMP abnormality is one of risk factors for BPPV recurrence.
  
  
  OBJECTIVE
  This prospective study aimed to test the hypothesis that otolith dysfunction using the VEMP test is a cause of recurrence of BPPV.
  
  
  METHODS
  cVEMP and oVEMP tests using 500 Hz tone-burst stimuli were performed on 16 patients with recurrent BPPV between March 2010 and December 2011. Both VEMP tests were performed in 20 patients with non-recurrent BPPV.
  
  
  RESULTS
  The differences in age, sex, and involved canal between the recurrent and non-recurrent BPPV groups were not significant. Abnormal cVEMP responses were detected in 5 of 16 (31.3%) subjects in the recurrent BPPV group and abnormal oVMEP responses were detected in 4 of 16 (25%) subjects in the recurrent BPPV group. When we defined VEMP abnormality as an abnormal cVEMP or abnormal oVEMP, VEMP abnormalities were detected in eight (50%) subjects in the recurrent BPPV group and in three (15%) subjects in the non-recurrent BPPV group; the difference between groups was significant.
authors.affiliation: Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University College of Medicine, Bucheon, Korea.
authors.forename: Jong Dae
authors.initials: JD
authors.lastname: Lee
authors.forename: Moo Kyun
authors.initials: MK
authors.lastname: Park
authors.forename: Byung Don
authors.initials: BD
authors.lastname: Lee
authors.forename: Tae Kyeong
authors.initials: TK
authors.lastname: Lee
authors.forename: Ki-Bum
authors.initials: KB
authors.lastname: Sung
authors.forename: Ji Yun
authors.initials: JY
authors.lastname: Park
mesh_terms: D065635:Benign Paroxysmal Positional Vertigo; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012008:Recurrence; D012444:Saccule and Utricle / Q000503:physiopathology*; D012720:Severity of Illness Index; D013997:Time Factors; D014717:Vertigo / Q000175:diagnosis* / Q000503:physiopathology; D058585:Vestibular Evoked Myogenic Potentials / Q000502:physiology*; D014724:Vestibular Function Tests / Q000379:methods