Related Experiment Video
Updated: Jul 18, 2026
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
[Fitting hearing aids in early childhood based on auditory evoked potentials in steady states]
F Zenker Castro1, R Fernández Belda, J J Barajas de Prat
1Fundación Canaria Dr. Barajas para la Investigación y Prevención de la Sordera, Santa Cruz de Tenerife, España. zenker@clinicabarajas.com
Insights
Early identification of infant hearing loss is crucial. Auditory Steady State Responses (ASSR) provide objective hearing threshold data for effective hearing aid fitting in newborns.
Area of Science:
- Audiology
- Neuroscience
- Pediatrics
Context:
- Newborn hearing screening programs aim for early identification and intervention of hearing loss.
- Hearing aids are a primary intervention for deafness in infants.
- Accurate hearing threshold characterization is essential for pediatric hearing aid fitting.
Purpose:
- To evaluate the utility of Auditory Steady State Responses (ASSR) for objective hearing threshold measurement in newborns.
- To establish hearing aid fitting parameters based on ASSR electrophysiological responses.
Summary:
- Auditory Steady State Responses (ASSR) were recorded from 20 normal-hearing and 17 hearing-impaired infants.
- Electrophysiological data from ASSR enabled precise hearing aid fitting.
- Key hearing aid parameters like dynamic range, gain, compression ratio, and maximum output were derived from ASSR intensity-amplitude functions.
Impact:
- This electrophysiological procedure is highly suitable for newborns and young children when other tests are not feasible.
- Provides objective and reliable hearing data for timely intervention.
- Facilitates optimized hearing aid performance for improved developmental outcomes.
Abstract:
The purpose of the Newborn Hearing Screening Program is to achieve early. Identification and appropriate intervention for hearing loss. Hearing aids are the most frequent intervention for deafness. Paediatric specific clinical protocols for fitting hearing aids always recommend accurate characterisation of hearing thresholds in newborns. In this sense, electrophysiological procedures are specially indicated in determined hearing sensibility from the first age of life since it is an objective and reliable procedure. 20 normal hearing subject and 17 hearing loss subjects participated in this study. Auditory Steady State Responses (ASSR) were obtained from all of them. Hearing aid fitting was established from the electrophysiological responses. Dynamic range, gain, compression ratio and maximum output of the hearing aid were obtained from the intensity amplitude function of the ASSR. The procedure discussed in this study is specially indicated in newborns and very young children in which other test are not suitable.
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