Audiometric Comparison Between the First Patients With the Transcutaneous Bone Conduction Implant and Matched Percutaneous Bone Anchored Hearing Device Users
Artikel i vetenskaplig tidskrift, 2016

Hypothesis:The transcutaneous bone conduction implant (BCI) is compared with bone-anchored hearing aids (BAHAs) under the hypothesis that the BCI can give similar rehabilitation from an audiological as well as patient-related point of view.Background:Patients suffering from conductive and mixed hearing losses can often benefit more from rehabilitation using bone conduction devices (BCDs) rather than conventional air conduction devices. The most widely used BCD is the percutaneous BAHA, with a permanent skin-penetrating abutment. To overcome issues related to percutaneous BCDs, the trend today is to develop transcutaneous devices, with intact skin. The BCI is an active transcutaneous device currently in a clinical trial phase. A potential limitation of active transcutaneous devices is the loss of power in the induction link over the skin. To address this issue, countermeasures are taken in the design of the BCI, which is therefore expected to be as effective as percutaneous BCDs.Methods:An early observational study with a matched-pair design was performed to compare BCI and BAHA groups of patients over several audiometric measurements, including speech audiometry and warble tones thresholds with and without the device. Additionally, questionnaires were used to assess the general health condition, benefit, and satisfaction level of patients.Results:No statistically significant difference was detected in any of the audiological measurements. The outcome of patient-related measurements was slightly superior for BCI in all subscales.Conclusion:Results confirm the initial hypothesis of the study: the BCI seems to be capable of providing as good rehabilitation as percutaneous devices for indicated patients.

aid benefit




Bone anchored hearing aid

Audiometric measurements

Active transcutaneous

Bone conduction


Cristina Rigato

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik

Sabine Reinfeldt

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik

Bo Håkansson

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik

Karl-Johan Fredén Jansson

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik

M. K. S. Hol

Radboud Universiteit

Måns Eeg-Olofsson

Göteborgs universitet

Otology and Neurotology

1531-7129 (ISSN)

Vol. 37 9 1381-1387



Bioinformatik och systembiologi



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