Cochlear Implantation in Children with Severe/Profound Sensorineural Hearing Loss

Assessment and Eligibility

The child has documented severe to profound sensorineural hearing loss in one ear with absent hearing for certain frequencies, while maintaining normal hearing in the other ear 1, 2
MRI confirms abnormal labyrinth with enlargement of the vestibular aqueduct, which is a known cause of sensorineural hearing loss, and the child's cochleovestibular anatomy appears compatible with cochlear implant placement based on the MRI findings 3

According to the American Academy of Pediatrics, cochlear implantation should be given careful consideration for any child who seems to receive limited benefit from appropriately fitted hearing aids 4, 5
The degree of hearing loss meets criteria for cochlear implantation, as this level of loss typically shows limited benefit from conventional amplification 4, 6
While guidelines typically recommend a hearing aid trial before implantation, exceptions exist when audiometric data clearly indicates profound loss that would not benefit significantly from amplification 5, 7

For unilateral severe to profound hearing loss with normal hearing in the contralateral ear, cochlear implantation can be considered when the difference between ears is significant (>15 dB) 2
The American Academy of Pediatrics notes that infants and young children with unilateral hearing loss should be assessed for appropriateness of hearing aid fitting, but depending on the degree of residual hearing, a hearing aid may or may not be indicated 6, 7
Delaying intervention for unilateral profound hearing loss can impact speech and language development, particularly in a child who is in a critical period for language acquisition 8
Cochlear implantation can improve sound localization and hearing in noisy environments, which are significant challenges with single-sided deafness 2

The family should receive counseling about realistic expectations and the importance of their support and motivation for post-implant rehabilitation 4
Long-term audiological follow-up and speech therapy will be essential components of successful outcomes 8
The child's history of ear issues should be considered in surgical planning but does not contraindicate cochlear implantation 9