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Title
Hypothalamic activation in cluster headache attacks.
Authors
May, A; Bahra, A; Büchel, C; Frackowiak, R S; Goadsby, P J
Abstract
Cluster headache, one of the most severe pain syndromes in human beings, is usually described as a vascular headache. However, the striking circadian rhythmicity of this strictly half-sided pain syndrome cannot be readily explained by the vascular hypothesis. We aimed to assess changes in regional cerebral blood flow (rCBF) in patients with cluster headache.