[Inferior vestibular nerve impairment in auditory neuropathy].
OBJECTIVE
To investigate if auditory neuropathy have inferior vestibular nerve (IVN) lesion and to explore the relation between AN and the IVN lesion by vestibular evoked myogenic potentials (VEMPs).


METHODS
VEMPs were observed in 13 patients with auditory neuropathy. And the relation among the duration, hearing threshold of lower frequency and speech discrimination score with VEMPs were observed.


RESULTS
Fifty-four percent patients in auditory neuropathy had abnormal VEMPs. They took the form of lower amplitude and no response. The statistical analysis showed that the abnormality of VEMPs had no correlation with lower frequency hearing loss, the duration and speech discrimination score.


CONCLUSIONS
The IVN dysfunction may coexist with auditory neuropathy, having lesion in the IVN. However, there was no significant relation between the severity of AN and VEMPs, which meant that AN and inferior vestibular neuropathy had their independence to some extent.
Wu
Zi-ming
ZM
Institute of Otorhinolaryngology, Chinese PLA General Hospital, Beijing, 100853, China. zimingwu@163.com
Zhou
Na
N
Zhang
Su-zhen
SZ
Wang
Qiu-ju
QJ
Guo
Wei-wei
WW
Gu
Rui
R
Yu
Li-ming
LM
Yang
Wei-yan
WY
Han
Dong-yi
DY
D000293:Adolescent; D000328:Adult; D005260:Female; D006313:Hearing Loss, Central / Q000150:complications / Q000503:physiopathology*; D006801:Humans; D008297:Male; D058585:Vestibular Evoked Myogenic Potentials; D020338:Vestibular Neuronitis / Q000150:complications / Q000503:physiopathology*; D055815:Young Adult