[Characteristics of the response of vestibular evoked myogenic potentials to different stimulus modes].
OBJECTIVE
Vestibular evoked myogenic potential (VEMP) has been utilized in clinic to test the function of saccule. In the present study, 3 stimulus modes were applied to 21 normal adults and intended to draw in a clinical test protocol.


METHODS
The normal latency and amplitude of VEMPs of 21 normal subjects were recorded and the ratio of bilateral amplitudes and asymmetry were calculated.


RESULTS
The response to binaural clicks were similar to the response of the monaural clicks. The interindividual variation in amplitude were large, but the latency varied little.


CONCLUSIONS
VEMPs is a stable myogenic potentials. Monaural and binaural clicks stimulus can be used in clinical practice. The latter is appropriate for normal hearing subjects. Amplitude measurement is probable to evaluate the asymmetry of bilateral saccular function and may reveal saccule lesion.
Zhou
Na
N
Department of Otolaryngology and Head Neck Surgery, Otorhinolaryngology Institute, General Hospital of Chinese PLA, Beijing 100853, China.
Wu
Zi-ming
ZM
Zhang
Su-zhen
SZ
Guo
Wei-wei
WW
Yu
Li-ming
LM
Yang
Wei-yan
WY
Han
Dong-yi
DY
D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D058585:Vestibular Evoked Myogenic Potentials; D014724:Vestibular Function Tests; D014725:Vestibular Nerve / Q000502:physiology*; D055815:Young Adult