Cochlear implant outcomes in the very elderly

Area of Science:

• Audiology and Otolaryngology
• Geriatric Medicine
• Neuroscience

Background:

• Hearing loss is a growing public health concern in older adults.
• Cochlear implantation (CI) is a standard treatment for severe hearing loss when hearing aids are insufficient.
• Understanding CI outcomes in diverse elderly populations is crucial for effective aural rehabilitation.

Purpose of the Study:

• To compare speech performance in cochlear implant recipients aged ≥80 years (Very Elderly) with those aged 65-79 years (Less Elderly).
• To evaluate the efficacy of cochlear implantation for speech intelligibility across different elderly age groups.

Main Methods:

• Retrospective analysis of 53 patients aged ≥80 and 92 patients aged 65-79 who received cochlear implants.
• Comparison of preoperative AzBio Quiet scores with 6-month post-activation scores.
• Statistical analysis included independent samples t-test and Hedges' g statistic to assess group differences and effect size.

Main Results:

• Both groups showed statistically significant improvements in AzBio Quiet scores (p < 0.001).
• The Less Elderly group improved from 27% to 60%, while the Very Elderly group improved from 22% to 45%.
• A significant difference in average improvement was found between groups (p = 0.03, g = 0.35), but this disappeared when excluding patients 90+ years (p = 0.09).

Conclusions:

• Adults aged 65-79 years demonstrate similar speech intelligibility outcomes to those aged 80-90 years following cochlear implantation.
• These findings suggest that age alone should not be a barrier to considering cochlear implants for older adults.
• The study emphasizes the importance of stratifying outcomes within elderly populations for cochlear implant candidacy assessment.