Clinical Evaluation of the Nucleus 5 Cochlear Implant (CI) System
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CNC Monosyllabic Word Performance - Treated Ear [ Time Frame: 12 months ]
CNC Word Test is a validated test of open-set word recognition. The test consists of 10 lists with 50 monosyllabic words in each list. Subject responses are scored for both words and phonemes correct in the correct sequence. Subjects will be tested using a configuration of speech at 0º azimuth in quiet.
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Ages Eligible for Study:
18 Years and older (Adult, Senior)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Eighteen years of age or older at the time of the study.
Postlinguistic onset of bilateral severe-to-profound sensorineural hearing loss
Bilateral severe-to-profound hearing loss that meets current cochlear implant criteria (<50% open-set sentence recognition in quiet scores in the ear to be implanted and <60% in the best-aided condition)
English spoken as the primary language.
Willingness to participate in and to comply with all requirements of the study
Subject may receive bilateral simultaneous cochlear implants.
Previous cochlear implant experience
Congenital hearing loss (for the purpose of this study, onset prior to 2 years-of-age).
Ossification, absence of cochlear development or any other cochlear anomaly that might prevent complete insertion of the electrode array.
Normal hearing in one or both ears.
Hearing loss of neural or central origin (e.g., deafness due to lesions on the acoustic nerve or central auditory pathway).
Active middle-ear infection.
Unwillingness and/or inability of the candidate to comply with all investigational requirements including, but not limited to, study protocol and surgical procedure.