Distortion Product After Stapedotomy Surgery
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About
This study aims at capturing for the first time at which frequencies and sound intensities hearing distortions are perceived after successful stapedotomy surgery. Also, the portion of patients perceiving these sound distortions and the length of time over which the distortions occur are assessed.
Full description
If the stapes footplate is fixed in position, e.g. by otosclerosis, rather than being normally mobile, a conductive hearing loss results. This conductive hearing loss is usually compensated with hearing aids or through stapedotomy. During stapedotomy, the diseased stapes bone is removed and is replaced with a piston prosthesis that conveys the sound stimulus from the incus to the footplate of the removed stapes.
After surgery subjects sometimes state that the quality of sound is suboptimal, even though their hearing ability has improved significantly. Some subjects subjectively hear distorted sounds, which often disappear several weeks after surgery.
This study aims at capturing for the first time at which frequencies and sound intensities these distortions are perceived. Additionally, the portion of patients perceiving these sound distortions and the length of time over which the distortions occur are assessed.
Enrollment
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Volunteers
Inclusion criteria
- indication for stapedotomy
- written consent given
Exclusion criteria
- not mentally able to give written consent
Trial design
60 participants in 3 patient groups
Trial contacts and locations
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Data sourced from clinicaltrials.gov
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