Format

Send to

Choose Destination
Acta Otolaryngol. 2015 Mar;135(3):246-53. doi: 10.3109/00016489.2014.971463.

Evaluation of residual hearing in cochlear implants candidates using auditory steady-state response.

Author information

1
Department of Otolaryngology, University of São Paulo School of Medicine , São Paulo , Brazil.

Abstract

CONCLUSION:

The correlations between behavioral and auditory steady-state response (ASSR) thresholds were significant at 500, 1000, 2000, and 4000 Hz. ASSR presented high sensitivity and specificity in the detection of residual hearing in cochlear implant candidates when compared with warble-tone audiometry.

OBJECTIVES:

To assess residual hearing in cochlear implant candidates by comparing the electrophysiological thresholds obtained in dichotic single-frequency ASSR with behavioral thresholds at 500, 1000, 2000, and 4000 Hz.

METHODS:

This was a comparative study between ASSR and warble-tone audiometry thresholds in 40 cochlear implant candidates (80 ears) before cochlear implantation with bilateral severe-to-profound sensorineural hearing loss.

RESULTS:

Thresholds were obtained in 62.5% of all frequencies evaluated in warble-tone audiometry and in 63.1% in the ASSR. ASSR sensitivity was 96% and specificity was 91.6%. Mean differences between behavioral and ASSR thresholds did not reach significance at any frequencies. Strong correlations between behavioral and ASSR thresholds were observed in 500, 1000, and 2000 Hz and moderate in 4000 Hz, with correlation coefficients varying from 0.65 to 0.81. On 90% of occasions, ASSR thresholds were acquired within 10 dB of behavioral thresholds.

KEYWORDS:

Auditory evoked potentials; auditory thresholds; cochlear implantation; residual hearing; sensorineural hearing loss

PMID:
25649884
DOI:
10.3109/00016489.2014.971463
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Taylor & Francis
Loading ...
Support Center