Cochlear Implantation Outcomes in Adults: A Scoping Review
PLoS One
Boisvert, I., Reis, M., et al. (2020).
PLoS One, 15(5), e0232421.
This scoping review investigates the effects of cochlear implantation in adults with hearing loss.
HEARing Cooperative Research Centre (Australia)
<div>The data in this systematic review are included in another document which can be found in the Associated Article section below.</div>
Inception to August 23, 2018
English-language, peer-reviewed studies
201
For adults with hearing loss who have limited speech perception, cochlear implantation (CI) was found to be an effective treatment. The authors found that 75% of adults using CI obtained more than 42% in word perception and more than 60% in sentence perception in quiet. Overall speech perception improved by 15 percentage points or more for the implanted ear in 82% of adults with postlingual hearing loss and in 53% of adults with prelingual hearing loss. On self-reported benefit measures, adults with CI reported an average improvement of 21.5 percentage points, while on general quality of life measures, adults with CI reported an average improvement of 12 percentage points. Some adults experienced limited or no improvement. Adults with prelingual hearing loss or neurofibromatosis type II/vestibular schwannoma were more likely to become device non-users. Additional research on rare and understudied hearing loss conditions, meta-analyses of data for specific etiologies, and studies investigating predictive factors for CI outcomes are needed.
