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Related Experiment Videos

Chronic paroxysmal hemicrania. VIII. The sweating pattern.

O Sjaastad, D Russell, C Saunte

    Cephalalgia : an International Journal of Headache
    |March 1, 1983
    PubMed
    Summary
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    Forehead sweating during chronic paroxysmal hemicrania (CPH) attacks varied among patients. While two showed increased sweating on the affected side, others had normal sweat values, suggesting it's not a universal symptom.

    Area of Science:

    • Neurology
    • Clinical Neuroscience
    • Headache Medicine

    Background:

    • Chronic paroxysmal hemicrania (CPH) is a rare headache disorder characterized by severe unilateral attacks.
    • The autonomic symptoms associated with CPH, such as sweating, are not fully understood.
    • Investigating physiological responses during CPH attacks can provide insights into its pathophysiology.

    Purpose of the Study:

    • To objectively measure forehead sweating during acute attacks in patients with chronic paroxysmal hemicrania.
    • To determine if increased sweating is a consistent finding in CPH.
    • To explore potential correlations between sweating and attack characteristics or triggers.

    Main Methods:

    • Utilized evaporimeter measurements to quantify forehead sweating in six female patients diagnosed with CPH.

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  • Employed a within-patient, case-control design, comparing sweating on the symptomatic side during attacks versus outside attacks, and against the non-symptomatic side during attacks.
  • Monitored patients during spontaneous attacks and, in one case, during mechanically precipitated attacks (head flexion, neck pressure).

    • Main Results:

    • Two out of six patients exhibited significantly increased forehead sweating on the symptomatic side during CPH attacks.
    • This increased sweating was observed both in comparison to the non-symptomatic side during an attack and to the symptomatic side outside of an attack.
    • The remaining four patients, including two with milder attacks, showed forehead sweating within normal control ranges.
    • Mechanically precipitated attacks in one patient were also associated with increased sweating on the symptomatic side.

    Conclusions:

    • Increased forehead sweating is not a mandatory or universal symptom in all patients with chronic paroxysmal hemicrania.
    • The variability in sweating suggests heterogeneity in the expression of autonomic features in CPH.
    • Further research is needed to elucidate the precise role and mechanisms of autonomic dysfunction in CPH.