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[Peripheral autonomic nervous system function in patients with hypothalamic insufficiency]

E G Filatova, A D Solov'eva, E V Kanavets

    Zhurnal Nevrologii I Psikhiatrii Imeni S.S. Korsakova
    |January 1, 1995
    PubMed
    Summary

    Subclinical peripheral nervous system insufficiency is common in hypothalamic insufficiency, particularly in early or long-term cases. This may contribute to autonomic dysfunction like tachycardia and panic attacks.

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    Area of Science:

    • Neuroendocrinology
    • Autonomic Nervous System Research
    • Clinical Neurology

    Background:

    • Hypothalamic insufficiency can lead to complex neuroendocrine and autonomic dysfunctions.
    • Understanding the peripheral nervous system's role is crucial for managing these patients.

    Purpose of the Study:

    • To assess the peripheral vegetative nervous system state in patients with constitutional acquired hypothalamic insufficiency.
    • To identify correlations between autonomic dysfunction and disease characteristics or dysraphic status.

    Main Methods:

    • Non-invasive cardiovascular tests were employed to evaluate autonomic function.
    • Electrophysiological assessment of sudomotor preganglionic fiber conductivity was performed.
    • Patients with hypothalamic insufficiency were compared to a healthy control group.

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    Main Results:

    • Subclinical parasympathetic vegetative insufficiency was detected, more pronounced in early-onset or long-standing hypothalamic insufficiency.
    • Reduced conductivity velocity in sudomotor preganglionic fibers of the limbs was observed.
    • Autonomic dysfunction was more prevalent in patients with significant dysraphic status, suggesting potential developmental defects.

    Conclusions:

    • The findings support a constitutional and acquired nature of autonomic disturbances in hypothalamic insufficiency.
    • Subclinical peripheral autonomic insufficiency may be a key factor in developing permanent or paroxysmal autonomic symptoms.
    • Dysraphic status may indicate underlying defects in peripheral vegetative fiber development.