Scalar Localization Cochlear Electrode Array Using 64 Slice CT
- Conditions
- Hearing Loss
- Registration Number
- NCT00587262
- Lead Sponsor
- Mayo Clinic
- 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.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 5
- Registered in the Cochlear Implant Database.
- Patient has short or long electrode cochlear implant for high frequency hearing loss.
- 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).
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method 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 Outcome Measures
Name Time Method 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
Trial Locations
- Locations (1)
Mayo Clinic
🇺🇸Rochester, Minnesota, United States