Clinical Research Directory
Browse clinical research sites, groups, and studies.
Correlations Between Subjective and Objective Responses to Cochlear Implant Stimulation
Sponsor: Assistance Publique - Hôpitaux de Paris
Summary
Cochlear implants have been used for several decades, with major technological advances. However, adjustment can be difficult for patients who have to get used to a new sound that is electrical rather than acoustic. In general, adjustment is based on the patient's responses: the patient must inform the technician of their sensations in order to determine the sound level that is comfortable for them (MCL: maximum comfortable level). The adjustment therefore depends on a subjective assessment. The aim of the adjustments is to make the sound pleasant while increasing the stimulation level to the maximum tolerated level in order to achieve good listening dynamics. Objective indicators would therefore be useful in improving the accuracy of the adjustments. The objective measurements that can be taken are: * Electrical compound action potentials (eCAP) * Electrical auditory brainstem response (eABR) * Electrical stapedius reflex threshold (eSRT).
Official title: Multimodal Objective Measures Help Cochlear Implant Programming: Cross-sectional and Prospective Study Focusing on the Correlations Between eSRT, Behavioural and Other Objective Responses (eABR, eCAP)
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
OBSERVATIONAL
Enrollment
60
Start Date
2026-01-15
Completion Date
2029-10
Last Updated
2026-01-27
Healthy Volunteers
No
Interventions
Objective electrophysiological measures (eCAP, eABR, eSRT)
Non-invasive electrophysiological recordings obtained during/after routine cochlear-implant programming, using standard clinical equipment: eCAP via CI software, eABR via an evoked-potential system synchronized with the implant, and eSRT via tympanometry. No investigational device or randomization. Measurements are collected for observational correlations with behavioral levels. Schedule: incident cohort at M1, M3, M6, M9, M12; prevalent cohort single annual visit.