Auditory skills development among children with developmental delays and cochlear implants

Area of Science:

• Pediatric Audiology
• Developmental Pediatrics
• Rehabilitation Medicine

Background:

• Cochlear implantation is a critical intervention for hearing loss in young children.
• Understanding auditory skill development in children with cochlear implants (CIs) and co-occurring developmental delay is essential for optimizing outcomes.

Purpose of the Study:

• To investigate auditory skills outcomes in young children who received cochlear implants before 36 months of age, with a focus on the impact of developmental delay.
• To compare auditory progress between children with and without additional disabilities and to explore the role of cognitive developmental quotients.

Main Methods:

• Retrospective chart review of 35 children who received cochlear implants before 36 months of age.
• Auditory skills were assessed using the Auditory Skills Checklist at 12 months postimplantation.
• Children were categorized based on the presence of additional disabilities and cognitive developmental quotient (DQ).

Main Results:

• Children with additional disabilities showed similar rates of auditory skills progress as those without disabilities, but started with lower baseline skills.
• Children with a developmental quotient (DQ) of 80 or higher demonstrated twice the rate of auditory skills progress compared to those with a DQ less than 80.
• A lower DQ (<80) was associated with reduced likelihood of developing skills in sound discrimination and identification within the first year post-CI.

Conclusions:

• Young children with cochlear implants and additional disabilities demonstrate auditory skills progress, though higher-level skills like identification and comprehension may take longer to develop.
• Cognitive developmental quotient appears to be a more predictive factor for auditory skill development post-cochlear implantation than the presence of a disability alone.