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Related Experiment Videos

Brainstem electric audiometry: is routine sedation necessary?

M W Yung

    Audiology : Official Organ of the International Society of Audiology
    |January 1, 1985
    PubMed
    Summary
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    Sedation does not improve brainstem electric response audiometry in cooperative adults. This study found no enhanced sensitivity or wave definition with chloral hydrate, concluding routine sedation is not beneficial for this audiological test.

    Area of Science:

    • Neuroscience
    • Audiology
    • Clinical Electrophysiology

    Background:

    • Sedation may reduce electroencephalography (EEG) and electromyography (EMG) waves.
    • This reduction could potentially enhance the sensitivity and definition of brainstem electric responses.

    Purpose of the Study:

    • To investigate the effect of chloral hydrate sedation on brainstem electric response audiometry (BERA).
    • To compare BERA results in adult volunteers before and during sedation.

    Main Methods:

    • Ten adult volunteers underwent BERA testing using click stimulation.
    • Testing was performed both before and during sedation with chloral hydrate.

    Main Results:

    • No significant increase in test sensitivity was observed in cooperative and relaxed subjects.

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  • The definition of wave I in the brainstem electric response did not show improvement after sedation.

    • Conclusions:

    • Routine sedation with chloral hydrate is not advantageous for BERA in cooperative adult subjects.
    • The hypothesis that decreased EEG and EMG activity during sedation improves BERA was not supported in this cohort.