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Related Experiment Videos

[Brain stem AEP in toxic comas. Correlation with brain stem reflexes].

S Garrel, L Barret, R Maynard

    Revue D'Electroencephalographie Et De Neurophysiologie Clinique
    |November 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

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    Brainstem auditory evoked potentials (BAEP) and brainstem reflexes aid in diagnosing and predicting outcomes for patients in deep toxic comas. Abnormalities in BAEP and reflexes correlate with coma severity and prognosis.

    Area of Science:

    • Neurophysiology
    • Toxicology
    • Neurology

    Context:

    • Studied 24 patients in deep toxic comas requiring respiratory support.
    • Laboratory analysis revealed multiple simultaneous toxic exposures (e.g., phenobarbital, benzodiazepines, tricyclic antidepressants).

    Purpose:

    • To evaluate the diagnostic and prognostic utility of brainstem auditory evoked potentials (BAEP) and brainstem reflexes in toxic coma.
    • To correlate electrophysiological findings with clinical presentation and outcomes.

    Summary:

    • Patients were grouped based on BAEP and brainstem reflex status: normal BAEP with preserved reflexes (n=12), delayed BAEP with disturbed reflexes (n=11), and absent BAEP/reflexes with fatal outcomes (n=2).
    • Delayed BAEP latencies were potentially caused by hypothermia and specific toxins.

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  • Cerebral anoxia was a contributing factor in fatal cases.

    • Impact:

    • BAEP and brainstem reflexes are crucial tools for assessing the depth of toxic coma.
    • These assessments can significantly aid in determining patient prognosis and guiding clinical management.