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UK Relationship between Tinnitus and Distortion Product Otoacoustic Emission

UN Meir

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Abstract

Purpose To investigate the clinical significance of DPOAE in tinnitus. Methods 86 subjects (125 ears) with tinnitus (with or without hering loss)were examined and compared with DPOAE and pure-tone audiometry.Results In 99 ears with hearing loss and tinnitus, the DPOAE-gram presented lower or no.amplitude in the frequency range of elevated pure-tone-thresthold,so there was close relationship between them. In 21 ears with normal hearing and tinnitus the amplitude of DPOAE at nearby frequencies of tinnitus was decreased , In 5 ears with hearing loss and tinnitus the DPOAE-gram was normal. Conclusion DPOAE gives us some useful information about the location and nature of the cochlear' s tinnitus and retrocochlear's tinnitus.To the tinnitus with normal hearing,DPOAE could reflect cochlear lesion in early stage.

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Purpose To investigate the clinical significance of DPOAE in tinnitus. Methods 86 subjects (125 ears) with tinnitus (with or without hering loss)were examined and compared with DPOAE and pure-tone audiometry.Results In 99 ears with hearing loss and tinnitus, the DPOAE-gram presented lower or no.amplitude in the frequency range of elevated pure-tone-thresthold,so there was close relationship between them. In 21 ears with normal hearing and tinnitus the amplitude of DPOAE at nearby frequencies of tinnitus was decreased , In 5 ears with hearing loss and tinnitus the DPOAE-gram was normal. Conclusion DPOAE gives us some useful information about the location and nature of the cochlear' s tinnitus and retrocochlear's tinnitus.To the tinnitus with normal hearing,DPOAE could reflect cochlear lesion in early stage.

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Available abstract

Purpose To investigate the clinical significance of DPOAE in tinnitus. Methods 86 subjects (125 ears) with tinnitus (with or without hering loss)were examined and compared with DPOAE and pure-tone audiometry.Results In 99 ears with hearing loss and tinnitus, the DPOAE-gram presented lower or no.amplitude in the frequency range of elevated pure-tone-thresthold,so there was close relationship between them. In 21 ears with normal hearing and tinnitus the amplitude of DPOAE at nearby frequencies of tinnitus was decreased , In 5 ears with hearing loss and tinnitus the DPOAE-gram was normal. Conclusion DPOAE gives us some useful information about the location and nature of the cochlear' s tinnitus and retrocochlear's tinnitus.To the tinnitus with normal hearing,DPOAE could reflect cochlear lesion in early stage.

Key concepts: Tinnitus, Audiology, Medicine, Otoacoustic emission, Pure tone audiometry, Hearing loss, Tone (literature), Audiometry

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