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Updated: May 4, 2026

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
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Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Published on: January 25, 2016

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Auditory neuropathy spectrum: the importance of adequate diagnosis

Fernanda Ferreira Caldas, Isabella Monteiro de Castro Silva, Marina Santos Teixeira

    The International Tinnitus Journal
    |December 17, 2013
    PubMed

    Insights

    Misdiagnosis is common in hearing-impaired children, with 26.7% showing signs of Auditory Neuropathy Spectrum Disorder (ANSD). This highlights the need for accurate audiological assessments to identify ANSD early.

    Area of Science:

    • Pediatric audiology
    • Neurology
    • Otolaryngology

    Background:

    • Misdiagnosis of hearing loss in children can lead to delayed intervention and poorer outcomes.
    • Auditory Neuropathy Spectrum Disorder (ANSD) presents unique diagnostic challenges.
    • Early and accurate diagnosis is crucial for effective hearing rehabilitation.

    Purpose of the Study:

    • To determine the prevalence of misdiagnosis in hearing-impaired children.
    • To investigate the occurrence of Auditory Neuropathy Spectrum Disorder (ANSD) in this population.

    Main Methods:

    • A prospective analytical study involving 15 children (30 ears) aged 10-12 years with bilateral sensorineural hearing loss.
    • Comprehensive audiological assessments including tympanometry, acoustic reflexes, otoacoustic emissions, and Auditory Evoked Response (AER).
    • Evaluation by a multidisciplinary team.

    Main Results:

    • 26.7% of ears (8 out of 30) exhibited absent AER with present cochlear microphonism.
    • Within this subgroup, 75% had otoacoustic emissions present in isolated frequencies, and 25% had them present even with isolated frequencies.
    • Findings suggest 26.7% of tested ears are compatible with ANSD.

    Conclusions:

    • Characteristics consistent with ANSD were identified in 26.7% of the ears studied.
    • The high prevalence indicates that misdiagnosis in hearing-impaired children remains a significant issue.
    • Emphasizes the importance of advanced audiological testing for accurate ANSD diagnosis.
    Abstract

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