Article
Determination of maximum power output of an active transcutaneous bone conduction implant in individual patients
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Authors
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Mohammad Ghoncheh
- Medizinische Hochschule Hannover, Klinik für Hals-Nasen-Ohrenheilkunde, Hannover, DE
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Susan Busch
- Medizinische Hochschule Hannover, Hannover, DE
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Thomas Lenarz
- Medizinische Hochschule Hannover, Hannover, DE
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Hannes Maier
- Medizinische Hochschule Hannover, Hannover, DE
| Published: | September 12, 2022 |
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Outline
Text
Introduction: The maximum output power (MPO) is the equivalent hearing level at maximum force level (MFL) that can be produced by the device. Therefore, it is an important parameter to determine the fitting limits for patients with different level of hearing impairments. In this study, we determined the MPO of the active transcutaneous bone conduction (BC) implant, Bonebridge (MED-EL, Innsbruck, Austria) using audiological and experimental data.
Method: 71 Patients (average age 43 ± 19 yrs. old and ranging from 5 to 84 years) implanted with the Bonebridge between 2011 and 2020 were included in the study. The MPO was determined using output force level of the Bonebridge, BC thresholds and direct BC thresholds of the patients implanted with device.
Results: The obtained average MPOs were in the range between 44 to 68 dB HL for frequencies from 0.5 to 6 kHz. The variability of the data was approximately 8 to 11 dB (standard deviations) across measured frequencies (0.5-6 kHz).
Conclusion: Our results demonstrate that the MPO of the transcutaneous bone conduction implant (Bonebridge) can be determined using audiological data of the patients.
