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Original Articles

Users’ experience of a cochlear implant combined with a hearing aid

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Pages 172-182 | Received 22 Oct 2007, Published online: 07 Jul 2009
 

Abstract

This study examined: (1) the prevalence of hearing-aid use in a clinical population of adults with unilateral cochlear implants, (2) the relationship between hearing-aid use, severity of hearing loss, duration of deafness and duration of cochlear implant use, and (3) the benefits of bimodal hearing from the users’ perspective. Using a retrospective design, 31 adults were identified as bimodal users, and 93 adults implanted in the same period were identified as non hearing-aid users. The two groups were similar in regards to duration of deafness but differed in severity of hearing loss and time since implantation. Questionnaires examining frequency and situations of hearing-aid use were completed by 24 of 31 bimodal users. Fifteen of these 24 adults reported hearing-aid use more than 50% of the time. These findings suggest that, of the 72 adults in this study with useable hearing (pure-tone average better than 110 dB), about 30% or less regularly combined a hearing aid and cochlear implant. The questionnaire results suggest that regular bimodal users prefer bimodal hearing across a variety of listening environments such as music, noise, and reverberation.

Sumario

Este estudio examinó: (1) la prevalencia del uso de un auxiliar auditivo en una población clínica de adultos con implante coclear unilateral, (2) la relación entre el uso del auxiliar auditivo, la severidad de la pérdida, la duración de la sordera y la duración del uso de implante coclear, y (3) los beneficios de la audición bimodal desde la perspectiva del usuario. Utilizando un diseño retrospectivo, se identificaron 31 adultos como usuarios bimodales, y 93 adultos implantados en el mismo periodo, que fueron identificados como no usuarios de auxiliar auditivo. Los dos grupos fueron similares en relación con la duración de la sordera y diferían en la severidad de la hipoacusia y el tiempo desde la implantación. Veinticuatro de 31 usuarios bimodales completaron cuestionarios que examinaban la frecuencia y las situaciones relacionadas con el uso del auxiliar auditivo. Quince de esos 24 adultos reportaron un uso de su auxiliar auditivo en más del 50% del tiempo. Estos hallazgos sugieren que, de los 72 adultos con audición útil en este estudio (promedio tonal puro mejor de 110 dB), alrededor del 30% o menos combinaban regularmente un auxiliar con auditivo con su implante coclear. Los resultados del cuestionario sugieren que los usuarios bimodales regulares prefieren la audición de tipo bimodal en diferentes ambientes de escucha, tales como la música, el ruido y la reverberación.

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