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Cochlear implants in children: principles, practice and predictions
1Queen's Medical Centre NHS Trust, Nottingham, England.
Insights
Cochlear implants significantly improve hearing in children with profound deafness, enabling spoken language development, especially when implanted before age five. Long-term multidisciplinary team support is crucial for these children.
Area of Science:
- Pediatric Audiology
- Otolaryngology
- Speech-Language Pathology
Background:
- Many children with profound deafness do not benefit from traditional hearing aids.
- Cochlear implantation offers an alternative for auditory rehabilitation in pediatric populations.
Purpose of the Study:
- To evaluate the outcomes of cochlear implantation in a cohort of 36 children in Nottingham.
- To identify factors influencing the success of cochlear implants in children with pre-lingual or acquired deafness.
Main Methods:
- Retrospective audit of 36 children receiving cochlear implants.
- Assessment of audibility thresholds post-implantation.
- Evaluation of spoken language development at three years post-implantation.
Main Results:
- All implanted children achieved audibility across key frequencies (500-4000 Hz) at 30-50 dB SPL.
- Most children implanted before age five developed intelligible spoken language within three years.
- Outcomes were similar for children with congenital deafness and those with early acquired deafness.
Conclusions:
- Cochlear implantation is effective in restoring hearing and facilitating spoken language in children with profound deafness.
- Early implantation (before age five) and shorter duration of deafness correlate with better outcomes.
- Ongoing, specialized multidisciplinary care is essential for the long-term needs of implanted children.
Abstract:
An audit was undertaken of the first 36 children who had received cochlear implants in Nottingham. These children had previously derived no benefit from prolonged trials of powerful hearing aids. Following implantation, all children could hear warble tones at all audiometric frequencies from 500 to 4000 Hz at sound pressure levels between 30 and 50 dB. The majority of children implanted below the age of 5 years developed intelligible spoken language after 3 years. The outcomes for children born deaf and those who acquired deafness under the age of 3 years were substantially similar. The best results were obtained in those children who were implanted before the age of 5 years or in whom the deafness was of short duration. The needs of implanted children continue over many years. A small number of dedicated, well-funded multidisciplinary teams are needed to meet the growing demand nationally.
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