Adaptação de próteses auditivas em idosos: prescrição de ganho acústico por meio dos limiares de audibilidade obtidos com tom puro e narrow band
Hearing aid fitting in the elderly: prescription of acoustic gain through frequency thresholds obtained with pure tone and narrow band stimuli
Gabriela Fireman Martines Dias; Marilia Rodrigues Freitas de Souza; Maria Cecília Martinelli Iorio
Resumo
Objetivo: Verificar o benefício obtido pela prescrição de ganho acústico baseada nos limiares audiométricos obtidos com tons puros (Warble) e com ruído de faixa estreita (NB). Método: Amostra de 30 idosos, com idade igual ou superior a 60 anos, perda auditiva neurossensorial de grau moderado a severo simétrica bilateral de configuração descendente com limiares em 4kHz iguais ou inferiores a 70dBNA. Foram dois grupos. GTP (grupo tom puro): 15 idosos tiveram as próteses auditivas adaptadas com emprego dos limiares obtidos com tom puro e grupo GNB (grupo Narrowband): 15 idosos tiveram as próteses auditivas adaptadas por meio dos limiares obtidos com NB. Os procedimentos realizados antes da adaptação de próteses auditivas e após três meses de uso de amplificação foram: Escala COSI, IPRF (Índice Percentual de Reconhecimento de fala), Relação Sinal/ Ruído e análise do tempo de uso do AASI. O Questionário Internacional de Aparelho de Amplificação Sonora Individual (QI-AASI) foi aplicado após três meses. Resultados: Os idosos do grupo em que as próteses auditivas foram adaptadas com ganho prescrito com base nos limiares auditivos obtidos com o estímulo Narrow Band apresentaram melhor desempenho nos seguintes testes: IPRF à orelha direita, pontuação total do questionário QI-AASI, escala COSI e maior tempo de uso do AASI em comparação ao grupo GTP. Conclusão: Observou-se maior benefício com o uso de próteses auditivas, pela pontuação total do questionário QI-AASI, escala COSI e maior tempo de uso do AASI, no grupo cuja prescrição do ganho acústico baseou-se nos limiares audiométricos obtidos com o Narrowband.
Palavras-chave
Abstract
Purpose: To verify the benefit obtained by the prescription of acoustic gain based on the auditory thresholds obtained with pure tones modulated in frequency and with Narrow Band Noise. Methods: The sample consisted of 30 elderly people, aged 60 years or over with moderate to severe descending sensorineural symmetrical hearing loss with thresholds at 4kHz equal to or less than 70dBHL. There were two groups. GTP (pure tone group): 15 elderly people had their hearing aids fitted through the auditory thresholds obtained with pure tone and the GNB group (narrow band group): 15 elderly people had their hearing aids fitted through the auditory thresholds obtained with NB. The procedures performed before the fitting of hearing aids and after three months of amplification use were: COSI, WRS (Word Recognition Score), Signal/Noise ratio. The International Outcome Inventory for Hearing Aids (IOI-HA) was applied only after three months of hearing aid fitting. Results: The elderly people in the group in which the hearing aids were fitted with a prescribed gain based on the hearing thresholds obtained with the Narrow Band stimulus showed better performance in the following tests: WRS on the right ear, total score of the IOI-HA inventory, COSI and longer use of hearing aids compared to the GTP group. Conclusion: There was a greater benefit with the use of hearing aids, due to the total score of the IOI-HA inventory, COSI scale and longer daily use time of hearing aids, in the group whose prescription of acoustic gain was based on the auditory thresholds obtained with narrow band.
Keywords
Referencias
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Submitted date:
22/06/2020
Accepted date:
15/10/2020
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