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Updated: Sep 3, 2025
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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
469
Auditory perception in pediatric cochlear implant users with cochlear nerve hypoplasia
Erva Degirmenci Uzun1, Merve Ozbal Batuk2, Hilal Dincer D'Alessandro2
1Department of Audiology, Faculty of Health Science, Izmir Bakircay University, Izmir, Turkey.
International Journal of Pediatric Otorhinolaryngology
|July 23, 2022
Summary
Cochlear implants (CIs) improve auditory perception and speech intelligibility in children with cochlear nerve (CN) hypoplasia. However, CN hypoplasia negatively impacts auditory performance in these children.
Area of Science:
- Otolaryngology
- Pediatric audiology
- Neurosurgery
Background:
- Cochlear nerve (CN) hypoplasia is an inner ear malformation that can impair auditory development.
- Cochlear implants (CIs) offer a potential solution for hearing restoration in children with sensorineural hearing loss.
Purpose of the Study:
- To evaluate auditory perception and speech intelligibility in children with CN hypoplasia who received CIs.
- To compare outcomes between children with CN hypoplasia and a control group with normal cochlear structures.
Main Methods:
- A study included 40 children aged 3–18 years, with 20 having CN hypoplasia and 20 serving as controls.
- Participants were assessed using the Categories of Auditory Performance II (CAP II) and Speech Intelligibility Rating (SIR) scales.
Main Results:
- Children with CN hypoplasia showed significantly lower CAP II and SIR scores compared to controls (p < 0.001).
- Positive correlations were observed between CAP II and SIR scores in both groups.
- In the CN hypoplasia group, earlier implantation correlated with better auditory performance (CAP II and SIR scores).
Conclusions:
- Cochlear implantation is effective for improving auditory perception and speech production in children with CN hypoplasia.
- CN hypoplasia presents a challenge, negatively affecting auditory outcomes in children with CIs.
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