Abstract
Objectives Illustrate long-term follow-up clinical and histologic data from a patient with unilateral multichannel cochlear implantation.Design Case report.Methods Clinical history, evolution of audiometric findings, and results of temporal bone histopathology of a patient implanted with a Nucleus 22 system in the right ear were analysed and interpreted.Results Audiometry showed severe bilateral sensorineural hearing loss, which progressed in the non-implanted ear postoperatively. With the implanted ear, speech perception was excellent postoperatively and remained stable over 5 years. Histology showed a relatively small number of spiral ganglion cells bilaterally.Conclusions Cochlear implantation can provide stable hearing in light of deteriorating hearing loss in the non-implanted ear. Only a small number of surviving ganglion cells were necessary for the implant.
Published Version
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