Correlation between frequency-specific auditory brainstem responses and behavioral hearing assessment in children with hearing loss
Correlação dos achados do PEATE-FE e da avaliação comportamental em crianças com deficiência auditiva
Natalia Ramos; Mabel Gonçalves Almeida; Doris Ruthy Lewis
Abstract
Purpose: analyze and correlate the findings of the frequency specific auditory brainstem response and behavioral assessment by air and bone conduction in children with sensorineural hearing loss or mixed hearing loss.
Method: the sample was composed of ten children up to three years old, diagnosed with sensorineural hearing loss. We conducted the FS-ABR in the frequencies of 0.5, 1, 2 and 4 kHz and behavioral audiometry in the same frequencies, by air and bone conduction. The results of both procedures were correlated in order to verify if the FS-ABR is able to predict auditory status of children with hearing impairment.
Results: it was observed a strong correlation between the two procedures in the four frequencies studied by air conduction; for bone conduction, found a strong correlation was found in the frequencies of 0.5, 1 and 2 kHz and a moderate correlation at 4 kHz.
Conclusion: FS-ABR estimated the hearing with strong accuracy when compared to behavioral audiometry. Thus, the application of FS-ABR enables the estimation of hearing status until they can be determined by behavioral hearing tests in the population studied.
Keywords
Resumo
Objetivo: analisar e correlacionar os achados dos Potenciais Evocados Auditivos de Tronco Encefálico por Frequência Específica e da avaliação comportamental, por Via aérea e Via óssea, em crianças com perda auditiva sensorioneural ou mista.
Método: a casuística foi composta por dez crianças com até três anos de idade, diagnosticadas com perda auditiva sensorioneural. Foram realizados os PEATE-FE nas frequências de 0.5, 1, 2 e 4 kHz e a audiometria comportamental nas mesmas frequências, tanto por via aérea como por via óssea. Os resultados dos dois procedimentos foram correlacionados a fim de verificar se o PEATE-FE é capaz de predizer o status auditivo de crianças com deficiência auditiva.
Resultados: os resultados mostraram forte correlação entre os dois procedimentos nas quatro frequências estudadas por via aérea; já na via óssea, foi encontrada forte correlação nas frequências de 0.5, 1 e 2 kHz e moderada em 4 kHz.
Conclusão: os PEATE-FE estimaram a audição com forte precisão quando comparados à audiometria comportamental. Desta forma, a aplicação dos PEATE-FE possibilita a estimativa da audição até que possam ser determinados, com segurança, os limiares comportamentais na população estudada.
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Referencias
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Submitted date:
10/10/2012
Accepted date:
04/03/2013
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