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A bone-anchored hearing aid for patients with pure sensorineural hearing impairment: a pilot study.

Journal article
Authors Stefan Stenfelt
Bo Håkansson
Radoslava Jönsson
Gösta Granström
Published in Scandinavian audiology
Volume 29
Issue 3
Pages 175-85
ISSN 0105-0397
Publication year 2000
Published at Institute of Selected Clinical Sciences, Department of Otolaryngology
Pages 175-85
Language en
Links www.ncbi.nlm.nih.gov/entrez/query.f...
Keywords Acoustic Stimulation, instrumentation, Adolescent, Adult, Aged, Audiometry, Pure-Tone, Bone Conduction, physiology, Equipment Design, Female, Hearing Aids, Hearing Loss, Sensorineural, surgery, Humans, Male, Mastoid, Pilot Projects, Prosthesis Fitting, Prosthesis Implantation, Questionnaires, Severity of Illness Index
Subject categories Otorhinolaryngology, Biomaterials Science

Abstract

This pilot study assesses the potential benefits of an optimized bone-anchored hearing aid (BAHA) for patients with a mild to moderate pure sensorineural high frequency hearing impairment. The evaluation was conducted with eight first-time hearing aid users by means of psycho-acoustic sound field measurements and a questionnaire on subjective experience; all of the patients benefited from the BAHA. On average, the eight patients showed improvement in PTA threshold of 3.4 dB and in speech intelligibility in noise of 14%. Seven of the subjects, also fitted with present standard air conduction hearing aids (ACHA) found the ACHA thresholds to be improved more than the BAHA ones. In speech tests, the ACHA was only slightly better; these patients chose between their different hearing aids according to the sound environment. Although the BAHA was preferred for wearing and sound comfort, it cannot be used as the sole aid for patients with pure sensorineural impairment.

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