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PSEUDOBULBAR AFFECT IN MULTIPLE SCLEROSIS PATIENTS.

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    Pseudobulbar affect (PBA) affects over 40% of multiple sclerosis (MS) patients, particularly women. Many patients do not report these emotional changes to their doctors, highlighting a need for active diagnosis.

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    Area of Science:

    • Neurology
    • Neuroscience
    • Psychiatry

    Background:

    • Pseudobulbar affect (PBA) is an emotional disinhibition syndrome characterized by involuntary crying or laughing.
    • PBA can occur in various neurological conditions, including multiple sclerosis (MS).
    • Previous estimates of PBA prevalence in MS patients range from 10% to 46.2%.

    Purpose of the Study:

    • To determine the prevalence of PBA in MS patients.
    • To analyze the association between PBA and patient demographics, MS clinical course, disease duration, and disability.
    • To assess patient-reported communication of PBA symptoms to neurologists.

    Main Methods:

    • A study involving 79 MS patients undergoing inpatient rehabilitation.
    • Utilized the Center for Neurologic Study-Lability Scale (CNS-LS) for PBA assessment, with a score of 17 indicating a positive finding.
    • Correlational analysis to examine links between PBA and patient characteristics.

    Main Results:

    • 33 out of 79 MS patients (41.8%) met the CNS-LS criteria for PBA.
    • PBA was more prevalent in women and patients with secondary progressive MS.
    • No significant correlation was found between PBA and age or degree of disability.
    • 42.4% of patients diagnosed with PBA did not report their symptoms to their neurologist.

    Conclusions:

    • PBA is highly prevalent in MS patients.
    • A significant number of MS patients with PBA do not communicate their symptoms to neurologists.
    • Active screening and diagnosis of PBA in MS patients are warranted.