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Autonomic nervous system function in migraine without aura.

P Cortelli1, G Pierangeli, P Parchi

  • 1Neurological Institute, University of Bologna Medical School, Italy.

Headache
|July 1, 1991
PubMed
Summary
This summary is machine-generated.

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Migraine patients show sympathetic nervous system hyperactivity between attacks. However, their autonomic nervous system control of the cardiovascular system remains intact during these headache-free periods.

Area of Science:

  • Neurology
  • Autonomic Neuroscience
  • Cardiovascular Physiology

Background:

  • Migraine is a complex neurological disorder.
  • Autonomic nervous system (ANS) dysfunction is often implicated in migraine pathophysiology.
  • Understanding ANS function during headache-free intervals is crucial for identifying underlying mechanisms.

Purpose of the Study:

  • To investigate autonomic nervous system functions in female migraine without aura patients during headache-free intervals.
  • To assess cardiovascular autonomic control using physiological, pharmacological, and biochemical methods.

Main Methods:

  • Studied 13 female migraine without aura patients during headache-free periods.
  • Employed physiological tests (Valsalva maneuver, cold-face test, isometric handgrip), pharmacological challenges (noradrenaline infusion, clonidine infusion), and biochemical analyses.

Related Experiment Videos

  • Compared findings with control groups.

    • Main Results:

    • Elevated resting heart rate and heightened blood pressure responses to cold-face and isometric handgrip tests observed in migraine patients compared to controls.
    • Intact baroreflex arc function indicated by normal cardiovascular responses to Valsalva maneuver and noradrenaline.
    • Normal cardiac parasympathetic function confirmed by heart rate responses to Valsalva maneuver, cold-face test, and deep breathing.
    • Normal central sympathetic tone suggested by clonidine's effects on blood pressure, sedation, and plasma norepinephrine (NA) inhibition.

    Conclusions:

    • Physiological, pharmacological, and biochemical data suggest a non-specific sympathetic hyperactivity in migraine patients between attacks.
    • No definitive impairment of autonomic cardiovascular control was confirmed in migraine patients during headache-free intervals.