Complications of migraine

Migraine is a common and benign disease that does not shorten the life and does not lead to disability of patients. Migraine complications are extremely rare and in most cases occur in patients suffering from migraine with aura, with the exception of status migrainosus. The International Classification of headaches in 2018 identifies as complications: status migrainosus, persistent aura without infarction, migrainous infarction and migraine aura-triggered seizure; the appendix discusses visual snow and migraine aura status. The article is of an overview nature, which presents diagnostic criteria, features of differential diagnosis, as well as currently available theoretical approaches to migraine complications. Treatment of status migrainosus, clinical features and therapy of persistent aura without infarction, diagnosis and differential diagnosis of migrainous infarction and ischemic stroke of other causes, differential diagnosis of migraine aura status with organic neurological syndromes, as well as clinical features, pathogenesis and comorbidity of «visual snow» described in the article, are important for the clinical practice of neurologists.