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SUNCT syndrome: forehead sweating pattern

P Kruszewski1, J M Zhao, J M Shen

  • 1Department of Neurology, Trondheim University Hospital, Norway.

Cephalalgia : an International Journal of Headache
|April 1, 1993
PubMed
Summary
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Forehead sweating increases on the affected side during SUNCT syndrome attacks, unlike other headaches. This finding helps differentiate SUNCT syndrome from cluster headaches and other unilateral headache types.

Area of Science:

  • Neurology
  • Autonomic Nervous System Function

Background:

  • SUNCT syndrome is a rare headache disorder characterized by short-lasting unilateral neuralgiform attacks with cranial autonomic symptoms.
  • Understanding the pathophysiology of SUNCT syndrome is crucial for diagnosis and treatment.

Purpose of the Study:

  • To investigate forehead sweating patterns in patients with SUNCT syndrome.
  • To compare forehead sweating responses in SUNCT syndrome with other headache disorders.

Main Methods:

  • Assessed forehead sweating function in six patients with SUNCT syndrome.
  • Studied patients during spontaneous attacks and during attacks precipitated by food triggers.
  • Evaluated forehead sweating responses to thermal stimulation and pilocarpine administration.

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Main Results:

  • Increased forehead sweating (evaporation) was observed on the symptomatic side during SUNCT attacks.
  • Basal sweating levels were generally normal between attacks.
  • No systematic asymmetries in forehead sweating were found in response to heating or pilocarpine.

Conclusions:

  • The forehead sweating pattern in SUNCT syndrome is distinct and may help differentiate it from cluster headache, chronic paroxysmal hemicrania, and cervicogenic headache.
  • Asymmetrical forehead sweating during attacks is a characteristic finding in SUNCT syndrome.