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Related Experiment Videos

Pattern shift visual, brainstem auditory, and short-latency somatosensory evoked potentials in multiple sclerosis

K H Chiappa

    Neurology
    |July 1, 1980
    PubMed
    Summary

    Evoked potentials like pattern shift visual (PSVER), brainstem auditory (BAER), and short-latency somatosensory (SER) are reliable tests for multiple sclerosis (MS). These tests detect central nervous system (CNS) white matter lesions, aiding diagnosis and treatment assessment.

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    Area of Science:

    • Neuroscience
    • Clinical Neurology
    • Neurophysiology

    Background:

    • Multiple Sclerosis (MS) is a chronic demyelinating disease affecting the central nervous system (CNS).
    • Objective measures are needed to assess CNS white matter tract integrity and lesion burden in MS.
    • Evoked potentials offer a non-invasive method to evaluate the functional status of specific sensory pathways.

    Purpose of the Study:

    • To evaluate the utility of pattern shift visual (PSVER), brainstem auditory (BAER), and short-latency somatosensory (SER) evoked potentials in patients with MS.
    • To determine the abnormality rates and lesion detection capabilities of these electrophysiological tests in MS.
    • To assess the potential of evoked potentials in confirming MS diagnosis and monitoring therapeutic efficacy.

    Main Methods:

    Related Experiment Videos

    • Utilized pattern shift visual (PSVER), brainstem auditory (BAER), and short-latency somatosensory (SER) evoked potentials.
    • Administered tests to large groups of patients diagnosed with multiple sclerosis (MS).
    • Analyzed abnormality rates and identified evidence of clinically unsuspected lesions.

    Main Results:

    • High abnormality rates were observed: 56% for PSVER, 32% for BAER, and 60% for SER.
    • Clinically unsuspected lesions were detected in 42% (PSVER), 21% (BAER), and 51% (SER) of patients.
    • Higher abnormality rates were noted in patients with definite MS, confirming multiple CNS white matter lesions.

    Conclusions:

    • Evoked potentials (PSVER, BAER, SER) are practical and reliable tools for assessing CNS white matter conduction in MS.
    • These tests provide objective evidence supporting MS diagnosis and identifying lesion dissemination.
    • Evoked potentials may serve as objective markers for evaluating the effectiveness of MS treatments.