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PubMed · 7758427

Are implantable hearing devices really necessary?

H H Niehaus·J Helms·J Müller
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Abstract

Indications, advantages and disadvantages of different types of bone-anchored hearing aids and middle ear implants are discussed and compared with conventional hearing devices. The hearing results obtained at the University of Würzburg in 4,195 middle ear surgeries, from January 1988-August 1993, are presented. In those cases where tympanoplasty wasn't able to provide a good hearing result, the additional use of a conventional hearing aid was sufficient. If the gain and maximum output of the implantable hearing aid is improved in the future, the implant may be able to provide intelligible hearing also to patients with a profound sensorineural hearing loss. At this point implantable hearing aids will become really necessary, irreplaceable devices.

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Hearing AidsHearing Loss, ConductiveHumansRecurrenceReoperationTreatment OutcomeTympanoplastyComparative StudyJournal Article

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H H Niehaus, J Helms, J Müller. 1995. Are implantable hearing devices really necessary?. https://pubmed.ncbi.nlm.nih.gov/7758427/

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PubMed2006

Fitting strategies and candidature criteria for unilateral and bilateral hearing aid fittings.

In this paper, hearing aid fitting strategies are reviewed and candidature criteria for unilateral and bilateral fittings are discussed. Fitting strategies are primarily governed by the objectives of hearing aid fitting that can be set in different ways. Based on common goals, fitting strategies can be broken down into three stages: (1) basic fitting, (2) fine-tuning and (3) verification and validation. A fine-tuning concept basing on so-called meta-controllers is described and the issue of bilateral fitting strategies is discussed. In a first order approach, bilateral hearing aids can be fitted in parallel as unilateral aids, followed by bilateral fine-tuning, making sure that loudness is balanced and overall loudness is accepted. Parallel fitting of bilateral aids is more favourable than sequential fitting to avoid rejection because of a negative experience with unilateral amplification due to difficulties in disadvantageous listening situations. Candidature criteria are presented by means of a flow chart structuring the decision making process and arriving at the conclusion that bilateral fitting should be considered the normal case. If there is any doubt about the benefit of bilateral fitting, a trial with bilateral aids should be performed.

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