Long-Term Use of Cochlear Implants in the Older Adult Population

Area of Science:

• Audiology
• Gerontology
• Neurosurgery

Background:

• Hearing loss is prevalent in 60-70% of elderly individuals.
• Cochlear implantation (CI) offers a solution for severe to profound hearing loss in this demographic.
• Long-term outcomes in older adults require further investigation due to potential comorbidities and cognitive factors.

Purpose of the Study:

• To evaluate 10-year speech perception outcomes in adults aged 60+ who received cochlear implantation (CI).
• To identify factors mediating long-term auditory performance in elderly CI recipients.

Main Methods:

• Retrospective chart review of 98 patients aged 60+ at implantation with at least 10 years of follow-up.
• Primary outcome: unilateral (CI-only) Consonant-Nucleus-Consonant (CNC) word scores in quiet at 10 years.
• Preoperative and 1, 5, and 10-year postoperative CNC scores were analyzed.

Main Results:

• Significant improvements in CNC scores from preoperative levels were observed at 1, 5, and 10 years post-implantation.
• Speech perception outcomes remained stable across postoperative time points.
• Higher daily CI use correlated with better CNC scores; independent living was associated with higher scores at 5 years.

Conclusions:

• Speech perception remains stable for most elderly cochlear implant (CI) users up to 10 years post-implantation.
• Age at implantation did not significantly impact outcomes.
• Consistent device usage and independent living are positively associated with long-term speech perception success in older adults.