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Updated: Jul 8, 2025
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Cochlear Implantation in Children Under 9 Months of Age: Safety and Efficacy
Justin Cottrell1, Emily Spitzer, David Friedmann
1Department of Otolaryngology-Head and Neck Surgery, NYU Langone, New York, NY.
Insights
Cochlear implantation (CI) is safe and effective for infants 5-8 months old, showing excellent speech and language outcomes. Early intervention is key for optimal results in pediatric hearing loss.
Area of Science:
- Pediatric Otolaryngology
- Auditory Implants
- Speech and Language Development
Background:
- Early identification and intervention for hearing loss in infants are crucial.
- Cochlear implantation (CI) is a viable option for severe to profound hearing loss.
- Safety and efficacy data for very young pediatric CI recipients are continuously evolving.
Purpose of the Study:
- To evaluate the safety and complication rates of cochlear implants (CIs) in children under 9 months of age.
- To assess the preliminary efficacy of CIs in this young pediatric population.
- To compare complication rates in infants (<9 months) versus older children (9-18 months).
Main Methods:
- Retrospective review of a single-center cohort of 106 children (5-8 months old) who received CIs.
- Analysis of 6-month postoperative complication rates, length of stay, and device-related issues.
- Comparison of complication rates with a historical cohort of children aged 9-18 months.
Main Results:
- 26% of infants (<9 months) experienced postoperative complications, mostly minor; no mortalities were reported.
- No significant difference in complication or reimplantation rates was found between the younger (<9 months) and older (9-18 months) CI groups.
- Excellent speech discrimination and near-normative spoken language outcomes were observed in the infant cohort.
Conclusions:
- Cochlear implantation is a safe and effective treatment for infants aged 5-8 months.
- Early hearing screening and timely intervention significantly contribute to optimal speech and language development in children with hearing loss.
- CI can provide substantial auditory and linguistic benefits for very young children.
Objective:
To assess the safety of cochlear implants (CIs) in children under 9 months of age to better understand expected postoperative complication rates, and to provide a preliminary look at efficacy.
Study Design:
Single-center retrospective review.
Setting:
Tertiary referral center.
Patients:
Children 5 to 8 months of age who received a CI between 2011 and 2021.
Interventions:
Therapeutic-CI.
Main Outcome Measures:
The primary outcome was 6-month postoperative complication rate. Secondary outcomes included length of stay, device explantation/reimplantation, rehabilitation supports, and hearing and language outcomes. Complications of children implanted under than 9 months of age was compared with a cohort of children implanted 9 to 18 months of age between the years 2011 and 2016 using a chi-squared test ( p < 0.05).
Results:
One hundred six children under 9 months of age were implanted (204 CIs) at a mean age of 6.6 months (range: 5-8). Postoperative complications occurred in 28 patients (26%) and were often minor. There were no mortalities. There was no statistically significant difference in complications, including reimplantation rates, between patients implanted under 9 months of age and those implanted 9 to 18 months of age. Speech discrimination outcomes were excellent, and mean spoken language outcomes were near normative for typically developing children.
Conclusions:
Cochlear implantation can be a safe and effective treatment option for children 5 to 8 months of age. Early hearing screening and referral for infants to receive appropriate intervention will continue to play a critical role in optimizing speech and language outcomes.
