Hearing Loss
Conditions
Keywords
Cochlear, Hearing, High frequency hearing loss
Brief summary
Insertion of electrode array in scala vestibuli, rather than the preferred location within scala tympani, leads to loss of native hearing in those patients with isolated high-frequency hearing loss undergoing cochlear implantation.
Detailed description
We aim to determine the surgical placement in patients with high frequency who had long electrode array insertions because they did not meet audiometric criteria for short array devices. From this basis we will be able to determine if suboptimal insertion (e.g., in the scala vestibuli) leads to loss of low-frequency hearing in these patients. We also will look at the possibilities of using this data in predicting outcomes, modifying implant design, and perfecting surgical technique.
Interventions
None listed
Sponsors
Mayo Clinic
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
8 Years to 100 Years
Healthy volunteers
No
Inclusion criteria
* Registered in the Cochlear Implant Database. * Patient has short or long electrode cochlear implant for high frequency hearing loss.
Exclusion criteria
* Inability to provide consent. * Patients with underlying otospongiosis, extensive labyrinthitis ossificans or cochlear dysplasia. (These patients would have been identified with pre-operative imaging prior to cochlear implantation).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The aim of our study is to determine surgical placement of the short electrode of cochlear implants in patients with high frequency loss. | Two years |
Secondary
| Measure | Time frame |
|---|---|
| Determine the surgical placement in patients with high frequency who had long electrode array insertions because they did not meet audiometric criteria for short array devices. | Two Years |
Countries
United States
Outcome results
None listed