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Revista da Sociedade Brasileira de Fonoaudiologia

On-line version ISSN 1982-0232


RODRIGUES, Gabriela Ribeiro Ivo; ALMEIDA, Mabel Gonçalves  and  LEWIS, Dóris Ruth. Frequency-specific and steady-state evoked auditory brainstem responses in pediatric audiology: case study. Rev. soc. bras. fonoaudiol. [online]. 2009, vol.14, n.4, pp.534-538. ISSN 1982-0232.

It is recommended that congenital hearing loss is identified as early as three months old. After the initial step of confirming the diagnosis, it is necessary to obtain accurate hearing thresholds, allowing an adequate selection, indication and regulation of hearing aids for these children. It is inserted, in this context, the Frequency-Specific Auditory Brainstem Responses (FSABR) and, more recently, the Auditory Steady-State Responses (ASSR). The aim of the present study was to describe the findings of the use of both techniques to estimate the auditory thresholds of a three-month-old infant with bilateral sensorineural hearing loss diagnosed using, as primary evaluation method, the click-evoked Auditory Brainstem Responses, with both air and bone stimuli conduction. Both techniques provided reliable findings for estimating auditory thresholds. The ASSR had an advantage regarding the duration of the evaluation.

Keywords : Evoked potentials; auditory; Evoked potentials; auditory; brain stem; Electrophysiology; Hearing loss, sensorineural [congenital]; Case reports.

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