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

AbstractConclusion: 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...

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Published in:	Acta oto-laryngologica Vol. 135; no. 3; pp. 246 - 253
Main Authors:	Ramos, Henrique Faria, Grasel, Signe Schuster, Beck, Roberto Miquelino de Oliveira, Takahashi-Ramos, Marystella Tomoe, Ramos, Bernardo Faria, de Almeida, Edigar Resende, Bento, Ricardo Ferreira, Brito Neto, Rubens de
Format:	Journal Article
Language:	English
Published:	England Informa Healthcare 01-03-2015
Subjects:	Adolescent Adult Audiometry - methods Auditory evoked potentials Auditory Threshold auditory thresholds Cochlear Implantation Female Hearing Loss, Sensorineural - diagnosis Hearing Loss, Sensorineural - psychology Hearing Loss, Sensorineural - surgery Humans Male Middle Aged Predictive Value of Tests residual hearing sensorineural hearing loss Young Adult sensorineural hearing loss Auditory evoked potentials auditory thresholds residual hearing cochlear implantation
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Summary:	AbstractConclusion: 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.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0001-6489 1651-2251
DOI:	10.3109/00016489.2014.971463