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Related Experiment Videos

Cardiac autonomic dysfunction in relapsing-remitting multiple sclerosis during a stable phase

F Giubilei1, A Vitale, C Urani

  • 1Department of Neurological Sciences, University La Sapienza, Rome, Italy.

European Neurology
|January 1, 1996
PubMed
Summary

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Multiple sclerosis patients exhibit reduced heart rate variability during sleep due to sympathetic nervous system dysfunction. Autonomic function tests showed similar responses between patients and controls, indicating specific sleep-related autonomic impairments in multiple sclerosis.

Area of Science:

  • Cardiovascular autonomic function
  • Neurology
  • Sleep medicine

Background:

  • Multiple sclerosis (MS) is a chronic neurological disease affecting the autonomic nervous system.
  • Autonomic dysfunction is a common but often underdiagnosed complication in MS patients.
  • Understanding cardiovascular autonomic control during sleep is crucial for managing MS complications.

Purpose of the Study:

  • To investigate autonomic cardiovascular regulation during sleep in patients with relapsing-remitting multiple sclerosis (RRMS).
  • To compare heart rate variability (HRV) and autonomic test responses between RRMS patients and healthy controls.
  • To explore potential correlations between MS-related brain lesions and cardiovascular sleep parameters.

Main Methods:

  • Autonomic function tests were performed on 20 RRMS patients and 9 healthy controls.

Related Experiment Videos

  • Heart rate variability was analyzed during sleep, assessing adaptability related to body movements.
  • Magnetic resonance imaging (MRI) was used to quantify brain lesions in MS patients.

    • Main Results:

    • Autonomic test responses were similar between RRMS patients and controls.
    • Patients with RRMS demonstrated significantly lower heart rate variability adaptability during sleep compared to controls.
    • This reduced adaptability was attributed to sympathetic nervous system dysfunction.
    • No significant correlation was found between the extent of MRI-detected lesions and cardiovascular sleep indices.

    Conclusions:

    • Relapsing-remitting multiple sclerosis patients exhibit impaired autonomic cardiovascular control during sleep, specifically related to sympathetic dysfunction.
    • Standard autonomic function tests may not fully capture sleep-related autonomic dysregulation in MS.
    • Further research is needed to understand the clinical implications of sleep-related autonomic dysfunction in MS and its relationship with disease burden.