Bilateral bone conduction stimulatio
Not Applicable
Recruiting
- Conditions
- H91.9Hearing loss, unspecified
- Registration Number
- DRKS00033509
- Lead Sponsor
- niveristätsspital Zürich
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Recruiting
- Sex
- All
- Target Recruitment
- 10
Inclusion Criteria
Normal hearing defined as hearing threshold < 20 dB for 500, 1000, 2000 and 4000 Hz.
Exclusion Criteria
Previous ear surgery, age < 18 years, unable to consent, hearing threshold > 20 dB for 500, 1000, 2000 or 4000 Hz.
Study & Design
- Study Type
- interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Hearing thresholds in 10 normal hearing subjects are determined for 500 Hz, 1000 Hz, 2000 Hz and 4000 Hz for ultrasound and bone conduction stimulation.<br>Additionally, intracochlear pressure is measured in 5 cadaver heads for the same stimulation modes.
- Secondary Outcome Measures
Name Time Method Three-dimensional velocity of the skull surface, middle ear ossicles, promontory and the otic capsula are measured.