[Phanerogenetic retrocochlear low frequency hearing loss].
Zhonghua Er Bi Yan Hou Ke Za Zhi
; 38(6): 459-64, 2003 Dec.
Article
em Zh
| MEDLINE
| ID: mdl-15040112
ABSTRACT
OBJECTIVE:
To study the pathogenisis of retrocochlear low frequency hearing loss.METHODS:
Clinical and audiologic findings [auditory brainstem response (ABR), evoked otoacoustic emission (EOAE), et al] of 29 cases with retrocochlear low frequency hearing loss were studied.RESULTS:
The head injury, acoustic neuroma, peripheral neurophathy, hereditary hear loss, multiple sclerosis and brainstem disease can cause retrocochlear low frequency hearing loss. The typical clinical manifestations of retrocochlear low frequency hearing loss were normal EOAE which cannot be suppressed by contralateral white noise, but with abnormal ABR as well as with no acoustic reflex and -SP/AP > 0.44.CONCLUSIONS:
The results suggest that phanerogenetic retrocochlear low frequency hearing loss should be a syndrome rather than a disease called "auditory neuropathy". The main lesions of the disease are brainstem, cochlear nuclei and auditory nerve.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neuroma Acústico
/
Neoplasias dos Nervos Cranianos
/
Perda Auditiva Neurossensorial
Tipo de estudo:
Diagnostic_studies
Limite:
Adolescent
/
Adult
/
Child
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Zh
Ano de publicação:
2003
Tipo de documento:
Article