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Auditory brainstem responses (ABR) in high-risk neonates

S Mjøen, A Langslet, S E Tangsrud

    Acta Paediatrica Scandinavica
    |September 1, 1982
    PubMed
    Summary

    Routine auditory brainstem response (ABR) testing in high-risk newborns identified hearing impairments in 16.6% of infants. Early diagnosis and audiological training are crucial for those with persistent hearing loss.

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    Area of Science:

    • Neonatal care
    • Audiology
    • Neuroscience

    Background:

    • High-risk neonates face increased risks of hearing impairment.
    • Auditory brainstem responses (ABR) are a key diagnostic tool for neonatal hearing screening.

    Purpose of the Study:

    • To evaluate the incidence of abnormal auditory brainstem responses (ABR) in high-risk neonates.
    • To emphasize the importance of early detection and intervention for hearing loss in this population.

    Main Methods:

    • Auditory brainstem responses (ABR) were recorded in 60 high-risk neonates.
    • Infants were selected based on criteria including low birth weight, hyperbilirubinemia, respiratory distress, and potential ototoxic medication exposure.

    Main Results:

    • 16.6% of neonates (10 out of 60) exhibited abnormal ABR tests.
    • Six infants showed no improvement in hearing sensitivity upon re-examination post-discharge.
    • Three infants remained "nonresponders" to ABR testing up to two years of age.

    Conclusions:

    • Routine ABR screening in high-risk neonates is recommended for early identification of hearing impairments.
    • Regular retesting and early audiological training are vital for infants with abnormal or persistent ABR findings.
    • Prompt intervention can significantly improve outcomes for neonates with hearing loss.

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