[The study of 80 Hz auditory steady-state evoked potentials in patients with auditory neuropathy].
OBJECTIVE
To investigate the character of 80 Hz auditory steady-state evoked potentials in auditory neuropathy (AN) patients and the correlation between it and ABR.


METHODS
The 80 Hz auditory steady-state evoked potentials and ABR to 95 dBnHL (1000 Hz) tone-pip stimuli were recorded from the scalp in patients with AN and normal subjects. The difference of the waveforms between AN ears and normal ears was compared.


RESULTS
In 85.4% AN ears the 80 Hz auditory steady-state evoked potentials and ABR were simultaneously present. Their amplitudes were low or extremely low. The I and III waves of ABR were absent. The 80 Hz auditory steady-state evoked potentials and ABR were simultaneously absent, in 14.6% AN ears, but were present in all normal ears.


CONCLUSIONS
The 80 Hz auditory steady-state evoked potentials and the V wave of ABR may come from the same brainstem sources.
Duan
Jiade
J
Department of Otolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. duanjiadehk@sina.com
Wang
Jibao
J
Chen
Haihua
H
Jin
Jing
J
D000293:Adolescent; D000328:Adult; D001300:Audiometry, Evoked Response; D001301:Audiometry, Pure-Tone; D001309:Auditory Threshold; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D016057:Evoked Potentials, Auditory, Brain Stem; D005260:Female; D006801:Humans; D008297:Male; D000160:Vestibulocochlear Nerve Diseases / Q000503:physiopathology*; D055815:Young Adult