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Audiological findings in Down's children.

M Maurizi, F Ottaviani, G Paludetti

    International Journal of Pediatric Otorhinolaryngology
    |August 1, 1985
    PubMed
    Summary
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    Auditory function in children with Down syndrome is often impaired, with middle ear issues being common. Objective tests like auditory brainstem response (ABR) are crucial for accurate hearing assessments in this population.

    Area of Science:

    • Audiology
    • Genetics
    • Pediatrics

    Background:

    • Down syndrome is associated with a higher prevalence of auditory system abnormalities.
    • Early identification and management of hearing loss are critical for developmental outcomes in children with Down syndrome.

    Purpose of the Study:

    • To investigate auditory function in a cohort of children with Down syndrome.
    • To evaluate the effectiveness of different audiological tests in this population.

    Main Methods:

    • Auditory assessment of 35 children with Down syndrome (aged 1 month to 16 years).
    • Utilized clinical examination, otoscopy, behavioral pure-tone audiometry, impedance testing, and auditory brainstem response (ABR).
    • Included audiological follow-up for a subset of participants.

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    Main Results:

    • Conductive hearing loss identified in 20% of cases via pure-tone audiometry.
    • Impedance testing showed limitations due to ear canal stenosis and abnormal tympanograms in most subjects.
    • Auditory brainstem response (ABR) proved effective, with 55.1% showing normal results, comparable to the general population.

    Conclusions:

    • Middle ear pathology is more prevalent in individuals with Down syndrome than clinically apparent.
    • Objective audiological tests, particularly ABR, are essential for reliable hearing evaluation in children with Down syndrome.
    • While impedance testing aids in detecting pathology, ABR is the preferred method for threshold determination in uncooperative children.