Migrainous infarction as a complication of sporadic hemiplegic migraine in childhood.

Dr. Deusvenir de Souza-Carvalho – Rua Pedro de Toledo 980 / 33 04039-002 São Paulo SP Brasil. E-mail: [email protected] According to the second edition of the International Classification of Headache Disorders (ICHD-II), migrainous infarction (MI) is a complication of migraine with aura. MI is diagnosed when one or more aura symptoms last longer than 60 minutes, and neuroradiological studies demonstrate ischemic stroke that potentially explains the symptoms. Stroke should not be attributed to another disorder. The ICHD-II also defines sporadic hemiplegic migraine (SHM) as a subtype of migraine with aura associated with fully reversible motor weakness in association to the typical aura symptoms (visual, sensory or dysphasic aura). Unlike familial hemiplegic migraine (FHM), familial history of migraine with motor weakness in firstor second-degree relatives is absent. MI in childhood is very rare and epidemiological studies are scarce. Reports of incidence of migrainous stroke in this group range from 0.5% to 1.7%. A fairly and diligent review of the literature found no previous reports of MI during childhood following SHM in Brazil. Herein we report a case of MI following SHM in a child. We obtained written informed consent to publish the case, as well as the results of genetic testing. The principles outlined in the declaration of Helsinki were followed.