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Trigeminal Autonomic Cephalalgias
1Department of Neurosurgery, University of Texas Health Science Center at Houston, Will Erwin Headache Research Center, 6400 Fannin Street, Suite 2010, Houston, TX 77030, USA.
Abstract:
The trigeminal autonomic cephalalgias (TACs) are a group of primary headache syndromes all marked by unilateral headache and ipsilateral cranial autonomic features. The TACs include cluster headache, paroxysmal hemicrania, short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing, and hemicrania continua. Pathophysiology includes the trigeminal pain system, autonomic system, hypothalamus, and more recently an identified role for the vagus nerve. Diagnosis is made after looking at headache frequency, duration, and accompanying symptoms. Each TAC has its own unique treatment, which is discussed in depth.
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