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Effects of inner ear malformations on auditory perception and language development in cochlear implant users
1Ear-Nose Throat, Gaziantep University Medicine Faculty, Gaziantep, Turkey.
Cochlear Implants International
|April 13, 2026
Summary
Inner ear malformation (IEM) subtype impacts hearing and language in pediatric cochlear implant (CI) users. Understanding these differences aids preoperative counseling and rehabilitation planning for better outcomes.
Area of Science:
- Otolaryngology
- Pediatric audiology
- Developmental linguistics
Background:
- Inner ear malformations (IEMs) are a primary cause of congenital sensorineural hearing loss.
- Cochlear implantation (CI) is a common intervention for pediatric hearing loss.
Purpose of the Study:
- To investigate how different inner ear malformation (IEM) subtypes affect auditory perception and language development in children receiving cochlear implants (CIs).
Main Methods:
- A cross-sectional study included 51 pediatric cochlear implant users with various inner ear malformations (IEMs).
- Participants were categorized into subtypes: incomplete partition type 1 (IP-1), incomplete partition type 2 (IP-2), enlarged vestibular aqueduct (EVA), and cochlear aperture abnormalities.
- Auditory perception and language development were assessed post-implantation.
Main Results:
- Significant differences in auditory and language test scores were found across the different IEM subgroups (P=0.001).
- The mean age of implantation was 37.29 months, and language assessment occurred at a mean age of 112.84 months.
Conclusions:
- The specific type of inner ear malformation (IEM) significantly influences auditory and language outcomes in pediatric cochlear implant (CI) recipients.
- Consideration of IEM subtypes is crucial for preoperative counseling and tailoring postoperative rehabilitation strategies.
- All participants showed improvement in auditory perception and speech production after cochlear implantation, regardless of IEM subtype.
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