Comparative study between pure tone audiometry and auditory steady-state responses in normal hearing subjects.

Abstract:

INTRODUCTION:Auditory steady-state responses (ASSR) are an important tool to detect objectively frequency-specific hearing thresholds. Pure-tone audiometry is the gold-standard for hearing evaluation, although sometimes it may be inconclusive, especially in children and uncooperative adults. AIM:Compare pure tone thresholds (PT) with ASSR thresholds in normal hearing subjects. MATERIALS AND METHODS:In this prospective cross-sectional study we included 26 adults (n = 52 ears) of both genders, without any hearing complaints or otologic diseases and normal puretone thresholds. All subjects had clinical history, otomicroscopy, audiometry and immitance measurements. This evaluation was followed by the ASSR test. The mean pure-tone and ASSR thresholds for each frequency were calculated. RESULTS:The mean difference between PTand ASSR thresholdswas 7,12 for 500 Hz, 7,6 for 1000 Hz, 8,27 for 2000 Hz and 9,71 dB for 4000 Hz. There were no difference between PT and ASSR means at either frequency. CONCLUSION:ASSR thresholds were comparable to pure-tone thresholds in normal hearing adults. Nevertheless it should not be used as the only method of hearing evaluation.

authors

Beck RM,Ramos BF,Grasel SS,Ramos HF,Moraes MF,Almeida ER,Bento RF

doi

10.5935/1808-8694.20140009

subject

Has Abstract

pub_date

2014-01-01 00:00:00

pages

35-40

issue

1

eissn

1808-8694

issn

1808-8686

pii

S1808-8694(14)50009-2

journal_volume

80

pub_type

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