Definitions
Cochlear implant devices – Cochlear implants (CIs) are auditory prostheses designed to bypass the inner ear to directly stimulate the auditory nerve. The implant converts acoustic sound picked up by an external microphone to electrical pulses generated by an electrode array inserted into the scala tympani of the inner ear. Each electrode in the array is assigned with a range of frequencies that mimics the tonotopic organization of the cochlea. Specifically, the highest pitches stimulate within the basal region of the cochlea while the lowest pitches within the apical region. Thus, CI can be effective even if hair cells are not functional and therefore suitable for individuals with severe-to-profound hearing loss who do not benefit from hearing aids.
Sensorineural Hearing loss– Sensorineural hearing loss (SNHL) is a type of hearing loss caused by a neural defect in the transmission of sound, at the level of the cochlear hair cells, cochlear nerve, or the auditory areas of...
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Perez, R., Kishon-Rabin, L. (2013). Surgical Devices (Cochlear Implantation, Pediatric). In: Kountakis, S.E. (eds) Encyclopedia of Otolaryngology, Head and Neck Surgery. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-23499-6_732
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