Cluster headache: on the mechanism behind attack-related sweating.
Eighteen cluster headache patients were studied using body heating or exercise tests; all but two of them were also studied with a pilocarpine test (0.1 mg/kg body wt, s.c.). Evaporimeter measurements were made on both sides of the forehead under standard conditions in a thermo room. Heat- and exercise-induced sweating was clearly less pronounced on the symptomatic side than on the non-symptomatic side of the forehead, and was significantly different compared to controls. Pilocarpine on the other hand induced a clearly more pronounced response on the symptomatic side than on the non-symptomatic side, which was also statistically significantly higher than in the control group. These findings suggest a supersensitivity of the sweat glands to pilocarpine on the symptomatic side of the forehead in most cases of cluster headache.[1]References
- Cluster headache: on the mechanism behind attack-related sweating. Saunte, C., Russell, D., Sjaastad, O. Cephalalgia : an international journal of headache. (1983) [Pubmed]
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