Mixed Hearing Loss
Conditions
Brief summary
This study will look at how much sound amplification (gain) different bone-anchored hearing devices can provide. The goal is to understand if there are differences between devices and whether these differences affect how well the devices meet the hearing needs of users. Bone-anchored hearing systems send sound vibrations directly to the inner ear through a small implant in the skull. The amount of amplification a device can provide is important for people with hearing loss. However, the actual maximum amplification available to a user depends on feedback control during fitting and can vary between devices and individuals. In this study, the actual maximum amplification of Device A and Device B will be compared. In addition the actual maximum amplification of Device A will be compared to Device C as well as the Device B compared to Device C. It will also be investigated whether the amplification limits the prescribed settings for the users.
Interventions
DEVICEBone Anchored Device A
Fitting Device A
DEVICEBone Anchored Device B
Fitting Device B
DEVICEBone Anchored Device C
Fitting Device C
Sponsors
Göteborg University
Oticon Medical
Study design
Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
1. BAHS user with an Oticon Medical compatible abutment 2. Signed Informed Consent Form 3. Adult, 18 years or older 4. MHL with pure tone average (PTA) bone conduction (BC) threshold (measured at 0.5, 1, 2 and 3 kHz) of 25-65dB HL on the indicated ear 5. MHL with an air-bone-gap (difference between BC and AC thresholds) of at least 15 dB measured at 0.5, 1, 2 and 3 kHz 6. At least 3 months of experience using a bone conduction device. 7. Fluent in Swedish to be able to read and understand patient information and informed consent process
Exclusion criteria
1. Participation in another clinical investigation which might cause interference with study participation. 2. Subjects who do not have the ability or are unwilling to follow investigational procedures/requirements, e.g. to complete questionnaires, according to investigator's discretion.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Difference in actual maximum gain in dB, between Device A compared to Device B for the mean average of the frequencies 500, 1000, 2000, 3000 and 4000 | Baseline, at fitting |
Secondary
| Measure | Time frame |
|---|---|
| Difference in actual maximum gain in dB, between Device A compared to Device B for the for the mean average of the frequencies 500, 1000, 2000 and 4000 | Baseline, at fitting |
| Difference in actual maximum gain in dB, between Device C compared to Device B for the mean average of the frequencies 500, 1000, 2000, 3000 and 4000 | Baseline, at fitting |
| Difference in actual maximum gain in dB, between Device A compared to Device B across frequencies 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000 and 8000 kHz | Baseline, at fitting |
| Difference in actual maximum gain in dB, between Device C compared to Device B across frequencies 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000 and 8000 kHz | Baseline, at fitting |
| Number of subjects with a limitation of the prescribed gain in any frequency band with Device A, Device B and Device C | Baseline, at fitting |
| Difference in actual maximum gain in dB, between Device C compared to Device B for the mean average of the frequencies 500, 1000, 2000 and 4000 | Baseline, at fitting |
Countries
Sweden
Contacts
Primary ContactMarianne Philipsson Senior Clinical Trial Manager
Outcome results
None listed