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Stimulating the Cochlear Apex Without Longer Electrodes
Sponsor: NYU Langone Health
Summary
The most common cochlear implant intervention provides an electrode array that stimulates less than half of the length of the cochlea, leaving the regions which represent lower frequencies in the normally functioning ear unstimulated. Providing stimulation over the entire cochlea has the potential to improve speech understanding, sound quality, as well as spectral and temporal representation. Increasing the length of the electrode array to cover a greater portion of the cochlea has many potential issues, including increased damage to the cochlea and probability of incomplete insertions. In this study, a new technique is being investigated that allows stimulation across the entire cochlear extent without increasing the length of the electrode array. The purpose of this study is to evaluate the benefit of the new technique on speech understanding outcomes. Additionally, the study will investigate the new configuration to explore how the auditory system encodes temporal and spectral information.
Key Details
Gender
All
Age Range
18 Years - 90 Years
Study Type
INTERVENTIONAL
Enrollment
40
Start Date
2022-08-01
Completion Date
2027-01-01
Last Updated
2026-03-06
Healthy Volunteers
No
Conditions
Interventions
Modified surgical approach
An electrode typically placed under the temporalis muscle will be placed into the cochlear helicotrema instead.
Cochlear Nucleus CI632 cochlear implant
Cochlear implant (CI) system where stimulation from one of the intracochear electrodes is grounded via one of two (or both) extra cochlear electrodes in the device.
Locations (1)
NYU Langone Health
New York, New York, United States