Primary Headache Disorders Part I- Migraine and the Trigeminal Autonomic Cephalalgias.

In Primary Headache Disorders, Part 1, we discuss three of the primary headache disorders using the headache definitions from ICHD-III (Beta): Migraine, with and without aura; its pathophysiology and treatment are discussed. We then discuss the Trigeminal Autonomic Cephalalgias (TACs), including Cluster Headache and Hemicrania Continua, two more primary headache disorders, as well as the other TAC Headaches. We discuss pathophysiology as well as diagnosis, treatment, and pharmacotherapeutic management of these headache diatheses.