Non-auditory stimulation in adult cochlear implant users

摘要: This is a retrospective case review of all 163 adults to have received multichannel cochlear implants on the Manchester University/Manchester Royal Infirmary programme between 1988 and 1998. The aims were investigate incidence unwanted non-auditory effects electrical stimulation (NAS) cochlea, try identify any factors that seemed be related these effects. effectiveness programming strategies in eliminating was also studied. Most devices Nucleus CI 22M or 24M. remainder Med-el Combi 40 40+. NAS occurred 23.9% implantees. There 20 cases facial nerve (12.3%), 18 pain ear throat (11.0%) one vestibulospinal spinal (0.6%). Two aetiologies significantly associated with NAS. Otosclerosis tended skull base fracture pain. Pain electrodes stimulated turn cochlea occur more distally situated electrodes, close labyrinthine segment nerve. no association particular make device. T C levels for rogue normal range. It concluded result from shorting current through areas low resistance temporal bone. A number different employed prevent effect, including alteration levels, removal map changing mode, this successfully achieved cases. difference performance patients who had those not, as assessed open-set BKB sentence scores.