A Systematic Review of the Clinical Effectiveness of Cochlear Implant Surgery in Pediatric and Adult Patients
Nigerian Journal of Clinical Practice
Musleh, A. (2024).
Nigerian Journal of Clinical Practice, 27(7), 807-818.
<div>This systematic review investigates the effectiveness of cochlear implants (CIs) for children and adults who are deaf or hard of hearing.</div>
None declared
From 2000 to 2020
<div>Original research articles published in English</div>
73
<div>Following unilateral CI surgery, adults showed improved speech perception. Several studies showed effects in elderly patients were lower as compared to younger patients, though other studies did not find a significant difference between age groups. Quality of life also significantly improved post-CI in some studies but not others.</div>
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<div>Limitations to this review include heterogeneity of processing strategies and implant types across the included studies.</div>
<div>Seventeen articles investigated unilateral CIs vs. bimodal stimulation vs. bilateral CIs in adults. There was significant improvement in hearing capacity in silence with bilateral CI use as compared to hearing in one CI only. In a noisy environment, there were similar findings. Bilateral CIs also showed improved localization capacity. In addition bilateral CIs showed significantly better clinical effectiveness.</div>
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<div>Limitations to this review include heterogeneity of processing strategies and implant types across the included studies.</div>
<div>Pediatric patients with unilateral CIs showed improved speech recognition in noise and improved localization (four studies). They also showed improvements in word recognition scores (1 study). One study showed no differences in distinguishing prosody affective speech compared to controls.</div>
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<div>Limitations to this review include heterogeneity of processing strategies and implant types across the included studies.</div>
<div>Twenty-six of 28 articles demonstrated improvement from bilateral CI stimulation as compared to unilateral CI stimulation in children, with most studies showing statistically significant results. Improvements for bilateral CIs were seen in sound source localization, as well as hearing in silence and in noise. </div>
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<div>Limitations to this review include heterogeneity of processing strategies and implant types across the included studies.</div>
