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Auditory brain-stem response and acoustic reflex test.

C D Bauch, W O Olsen, S G Harner

    Archives of Otolaryngology (Chicago, Ill. : 1960)
    |August 1, 1983
    PubMed
    Summary
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    Auditory brain-stem response and acoustic reflex tests effectively identify retrocochlear lesions in patients with cerebellopontile angle tumors. These audiological evaluations are crucial for diagnosing hearing loss, even when considering the degree of hearing impairment.

    Area of Science:

    • Audiology
    • Neurotology
    • Diagnostic Imaging

    Background:

    • Cerebellopontile angle tumors can cause retrocochlear hearing loss.
    • Accurate diagnosis relies on sensitive audiological assessments.

    Purpose of the Study:

    • To evaluate the efficacy of Auditory Brain-Stem Response (ABR) and Acoustic Reflex Testing (ART) in identifying cerebellopontile angle tumors.
    • To compare ABR and ART results in patients with and without tumors.

    Main Methods:

    • Retrospective review of ABR and ART results from 30 patients with cerebellopontile angle tumors and 30 controls.
    • Control group matched for audiometric configurations.

    Main Results:

    • ABR waveforms were abnormal in 29/30 tumor patients vs. 7/30 controls.

    Related Experiment Videos

  • ART results were abnormal in 25/30 tumor patients vs. 2/30 controls.
  • Abnormal ABR in non-tumor patients correlated with more severe hearing loss.

    • Conclusions:

    • ABR and ART are valuable tools for diagnosing retrocochlear lesions.
    • These tests aid in the audiological examination of patients with suspected cerebellopontile angle tumors.
    • Clinical information, including hearing loss severity, must be integrated into the diagnostic process.