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Related Experiment Videos

[A clinico-physiological analysis of essential hyperhidrosis].

V Iu Oknin, A M Veĭn, R A Sadekov

    Zhurnal Nevropatologii I Psikhiatrii Imeni S.S. Korsakova (Moscow, Russia : 1952)
    |January 1, 1992
    PubMed
    Summary

    Essential hyperhidrosis (EH) presents in two forms: permanent (PEH) and remitting (REH). These forms differ in autonomic nervous system involvement, impacting anxiety levels and sympathetic function.

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    Area of Science:

    • Neurology
    • Dermatology
    • Psychology

    Background:

    • Essential hyperhidrosis (EH) is a condition characterized by excessive sweating.
    • Previous research suggests autonomic nervous system (ANS) dysfunction in EH.
    • Understanding the specific ANS involvement in different EH subtypes is crucial for targeted treatment.

    Purpose of the Study:

    • To differentiate between permanent EH (PEH) and remitting EH (REH) based on ANS dysfunction.
    • To investigate the role of suprasegmental and segmental ANS involvement in EH pathogenesis.
    • To explore the potential role of denervation hypersensitivity in PEH.

    Main Methods:

    • Comparative analysis of 30 EH patients and 20 healthy controls.
    • Categorization of EH patients into PEH and REH groups based on clinical data.
    • Assessment of anxiety levels (reactive and personality) using MIL test scales.
    • Evaluation of sympathetic nervous system function through evoked cutaneous sympathetic potentials, cardiovascular effects, and diurnal catecholamine excretion.

    Main Results:

    • Both PEH and REH patients exhibited suprasegmental ANS disorders, indicated by increased anxiety and MIL test scores.
    • PEH patients additionally showed segmental vegetative disorders, including reduced conduction in sweating fibers, diminished cardiovascular sympathetic effects, and lower diurnal catecholamine excretion.
    • Reduced conduction in sympathetic sweating fibers was observed in PEH patients.

    Conclusions:

    • Essential hyperhidrosis comprises two distinct forms: PEH and REH, differing in the extent of suprasegmental and segmental ANS involvement.
    • PEH is associated with segmental autonomic dysfunction, specifically in sweating pathways.
    • Denervation hypersensitivity to blood catecholamines is implicated in the pathogenesis of PEH.

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