BIO SCI N147 Lecture Notes - Lecture 24: Stria Vascularis Of Cochlear Duct, Cochlear Implant, Brain Implant
7 Jan 2018
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Document Summary
20,000 people with cochlear implants over 400,000: ear anatomy, chronal cut from front to back implanted worldwide. Ihc do not grow back : without hair cells, can"t trigger the neurons hearing loss cochlear implant. Implant works: temporal bone of human with implant, start in basilar turn, cochlear implant - aim to put an array into the scala tympani so that they can release electricity to depolarize as many neuronal cells as possible. Infants (12-24 months: profound hearing loss in both ears, no progress in auditory skills with hearing aids, high motivation and appropriate expectations from fam. Implantation: to make sure the candidate will benefit from the surgery, performed in best-aided condition, use open-set sentence material to determine candidacy (can"t repeat sentence/understand words - good candidate, administer materials at 70 db spl. If pt requires higher presentation level, suffest candidacy. Individuals who receive no benefit from amplification: select the more recently deafened ear if medically appropriate.
