deafness, hearing loss
Conditions
Interventions
None listed
Sponsors
Leids Universitair Medisch Centrum
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: - Subject meets the normal clinical candidacy criteria (functional speech perception scores below 80%) for cochlear implantation. - Subjects are implanted with the Advanced Bionics cochlear implant system - Subjects have 80 dB or better pure tone unaided audiometric thresholds at 125, 250 or 500 Hz in the (to-be) implanted ear. - Subjects have agreed to participate in the study via written informed consent. - Subjects should be able to understand the written informed consent form. - Subjects are at least 18 years of age
Exclusion criteria
Exclusion criteria: Disorders other than a hearing impairment that could affect the study results, such as psychiatric disorders or physical disorders that would limit their ability to undergo testing (e.g., movement disorders, blindness etc);
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The main study parameters will be the eCochG responses, more specifically, the amplitudes and the phase of the cochlear microphonic (CM) receptor potential, the summating potential (SP) and the compound action potential (CAP). In addition, the audiometric thresholds, electric field imaging, and insertion depth of electrode will be evaluated. | — |
Secondary
| Measure | Time frame |
|---|---|
| Clinically obtained CT-imaging scans to define the electrode location | — |
Countries
Netherlands
Contacts
Public ContactM.J. van Gendt
Leids Universitair Medisch Centrum
Outcome results
None listed