Status migrainosus.

Status migrainosus is one of the recognized complications of migraine with or without aura, defined as a persistent debilitating migraine attack lasting for more than 72h with little reprieve, leading to functional disability. The individual impact of status migrainosus and the substantial healthcare burden are highlighted. Current case series which inform our understanding of this condition are examined with two groups emergent, those with classic status migrainosus and those with episodic status migrainosus. The question as to whether status migrainosus is a distinct biological state beyond the established migraine pathophysiology is examined. With the underlying pathophysiology not fully understood, attention is turned to therapeutic considerations and the available evidence informing practice. A practical approach to treatment of status migrainosus is presented. Given the severity and need for emergency care, options detailed are in line with recommendations for acute migraine care: with a staged approach initially combining subcutaneous sumatriptan with parenteral options including dopamine receptor antagonists, nonsteroidal anti-inflammatories and acetaminophen. The place of combination treatment with parenteral magnesium sulfate, dihydroergotamine, antiepileptics, corticosteroids, and anesthetic agents is outlined. With a paucity of high-quality evidence to consolidate current clinical approaches, consideration of future therapies and research questions is raised.

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