Adult and pediatric cochlear implant (CI) users differ in age, duration of deafness, and etiology, yet cochlear nerve (CN) response properties have not been systematically compared between these populations. To address this gap, this study examined electrically evoked compound action potentials (eCAPs) in pediatric and postlingually deafened adult CI users....
✦ The floor
Discussion
Signed responses from readers of the wire.
Findings are preliminary; await full results and replication before adjusting cochlear implant fitting or programming protocols based on age-group differences in nerve responsiveness.
Understanding age-related differences in cochlear nerve responsiveness could inform more individualized cochlear implant programming strategies for pediatric versus adult patients.
- 01Compared electrically evoked compound action potentials (ECAPs) in adult and pediatric cochlear implant users.
- 02Examined cochlear nerve responsiveness as a physiological marker of auditory nerve health.
- 03Electrode-neuron interface (ENI) index used to quantify how well electrodes couple with surviving nerve fibers.
- 04Published in Hearing Research (DOI: 10.1016/j.heares.2026.109769).
- 05Part I of what appears to be a multi-part study series.
Electrically evoked compound action potentials can be used to assess cochlear nerve responsiveness in both adult and pediatric cochlear implant users.
studypartially supportedThe electrode-neuron interface index differs between adult and pediatric cochlear implant users.
studyunclear- PMID
- 42585800
- DOI
- 10.1016/j.heares.2026.109769.
- Journal
- Hearing Research
- Publication type
- research_article
- Evidence level
- 2b
- Population
- Adult and pediatric cochlear implant users
- Intervention
- Electrically evoked compound action potential (ECAP) measurement and electrode-neuron interface index assessment
- Comparator
- Adult cochlear implant users vs. pediatric cochlear implant users
Primary outcomes
Cochlear nerve responsiveness; Electrode-neuron interface index values