Scalar Localization Cochlear Electrode Array Using 64 Slice CT
| Status: | Completed |
|---|---|
| Conditions: | Other Indications, Other Indications |
| Therapuetic Areas: | Other |
| Healthy: | No |
| Age Range: | 8 - 100 |
| Updated: | 4/21/2016 |
| Start Date: | October 2006 |
| End Date: | September 2009 |
Scalar Localization of Cochlear Implant Electrode Array in Hearing Preservation Patients Using 64 Slice CT
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.
scala tympani, leads to loss of native hearing in those patients with isolated
high-frequency hearing loss undergoing cochlear implantation.
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.
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.
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).
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