Ocular vestibular evoked myogenic potentials induced by bone-conducted vibration in patients with unilateral inner ear disease.
CONCLUSIONS
Patients with vestibular neuritis (VN) with complete canal paresis (CP) showed a higher rate of abnormal ocular vestibular evoked myogenic potential (oVEMP) than those with partial CP. From these results, it is speculated that the superior vestibular nerve function mainly affects oVEMP. Significant correlation was found between the grades of the hearing outcome and oVEMP in sudden sensorineural hearing loss (SSHL).


OBJECTIVE
We attempted to correlate the results of oVEMP with the results of cervical VEMP (cVEMP), results of subjective visual vertical (SVV), and clinical course in patients with various vestibular disorders.


METHODS
Twenty-two patients with VN, 65 with SSHL, and 22 with Meniere's disease (MD), were enrolled in this study. We compared the results of oVEMP with those of cVEMP, SVV, and the caloric test. Furthermore, the oVEMP results were compared with the initial hearing threshold, presence of vertigo, and hearing recovery in the patients with SSHL.


RESULTS
The patients with VN with complete CP showed a higher rate of abnormal oVEMP than those with partial CP. In the patients with SSHL, the hearing recovery rate was lower in the patients with abnormal oVEMP than in those with normal oVEMP.
Department of Otorhinolaryngology, Tokyo Medical University , Tokyo , Japan.
Noriko
N
Nagai
Yasuo
Y
Ogawa
Akira
A
Hagiwara
Koji
K
Otsuka
Taro
T
Inagaki
Shigetaka
S
Shimizu
Mamoru
M
Suzuki
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001844:Bone Conduction / Q000502:physiology*; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology*; D003639:Hearing Loss, Sudden / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008575:Meniere Disease / Q000503:physiopathology*; D008875:Middle Aged; D010291:Paresis / Q000503:physiopathology; D020127:Recovery of Function / Q000502:physiology; D012665:Semicircular Canals / Q000503:physiopathology; D058585:Vestibular Evoked Myogenic Potentials / Q000502:physiology*; D014724:Vestibular Function Tests; D020338:Vestibular Neuronitis / Q000503:physiopathology*; D055815:Young Adult