[Audiological test results of the autoimmune sensorineural hearing loss]

Audiological test results of 71 cases (130 ears) of clinically diagnosed autoimmune sensorineural hearing loss were analysed. Their audiograms can be divided into 4 types: low-frequency loss (55 ears), flat-type (26 ears), bell-type (17 ears) and high-frequency loss (32 ears). The test results of TEOAE, ABR, and -SP/AP amplitude ratio showed that the site of lesions in most of the low-frequency loss were retrocochlear, and most of the other three types were cochlear. Since about 1/3 of cases were chiefly involved retrocochlearly, the term "Autoimmune inner ear diseases" should not be used to substitute "Autoimmune sensorineural hearing loss".