The Impact of Age on Cochlear Implant Performance

Objective: Cochlear implantation is the emerging treatment of choice for severe and profound sensorineural hearing loss, yet there are conflicting data on outcomes in adults. There is signifi-cant variability in the literature concerning the exact effect of age on cochlear implant outcomes. We sought to evaluate the outcomes of cochlear implant performance stratified by age. Study De-sign: Retrospective review. Methods: Audiologic preoperative and postoperative evaluation con-sisted of word recognition scores (Consonant-Nucleus-Consonant). Complications were retrospec-tively collected after each cochlear implantation. A sub-analysis was performed comparing pa-tients implanted at a younger (21- 64 years) and older (65 and above) age. Results: A total of 240 patients were evaluated. Patients experienced a significant improvement in audiologic perfor-mance as seen with word recognition scores (p < 0.00001). The mean post-implant score was 44.6% (at 3 months) and 53.5 % (at 24 months) at 50 dB compared to average pre-implantation aided score of 6%. There was no significant difference between postoperative performances in younger versus older patient groups. Multiple regressions showed no correlation with duration of deafness at time of implantation or age and performance. There was no significant difference in perfor