Combined Electric and Acoustic Hearing (EAS) in Children and Adults

Cochlear implants are surgically implanted devices which restore the ability to hear to the hearing impaired. Improvements in surgery and electrodes have results in an increased number of adults and children who have residual hearing and can benefit from electric and acoustic hearing in the same ear. This is called Electric Acoustic Stimulation (EAS). Many studies have shown that adult EAS users show significant benefits for speech understanding in noise and spatial hearing tasks as compared to a CI paired only with a contralateral HA. Even though this type of hearing is becoming more common, there is limited research on how it can be beneficial to children with CIs. The benefits of this study are a greater understanding of the participant's speech understanding, binaural processing, and spatial hearing. The results will help audiologists and researcher better understand how cochlear implants work, specifically when using electric and acoustic hearing in the same ear.

NCT Number	NCT05923203
Lead Sponsor	Hearts for Hearing Collaborators: National Institute on Deafness and Other Communication Disorders (NIDCD)
Conditions	Cochlear Implant, Hearing Loss
Enrollment	160 participants
Start Date	2022-12-05
Primary Completion	2028-06-01 (estimated)
Study Completion	2028-08-31 (estimated)
Updated on ClinicalTrials.gov	2025-10-20