Premium
Vestibular dysfunction associated with benign paroxysmal vertigo
Author(s) -
Mcclure Joseph,
Lycett Paul,
Rounthwaite John
Publication year - 1977
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-197709000-00004
Subject(s) - vestibular system , medicine , vertigo , benign paroxysmal positional vertigo , vestibular nerve , labyrinthitis , audiology , surgery , hearing loss
Benign paroxysmal vertigo (BPV) is a clinical syndrome of vestibular origin although generally no evidence of vestibular dysfunction can be demonstrated with conventional tests. In a review of 1350 consecutive dizzy patients, there were 125 with BPV and of these, 33 underwent a quantitative rotational test of vestibular function. The rotational results showed reduced vestibular system gain for these BPV patients. In addition, they could be subdivided on the basis of a normal or shorter cupular time constant (Tc). Separation of patients into diagnostic categories revealed that those categorized as cupulolithiasis and viral labyrinthitis had a normal Tc range and those categorized as trauma and idiopathic had a short Tc. The reduced gain and short Tc in the latter group suggests hair cell and/or nerve damage since these same changes occur in patients with destructive peripheral vestibular disease.