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Migraine

Paroxistic upheaval that is characterized by recidivantes episodes of migraine, with associate visual alterations and GI or without them.

Ethyology and incidence

The cause is not known but the existing data suggest a functional upheaval of the intercraneal and extracraneal circulation transmitted genetically. One knows that in the migrañosa crisis regional alterations of the cerebral sanguineous flow exist caused by a intracraneal arterial vasodilatación; in addition one thinks that these alterations can have a causal paper. Apostulado Seh that the mechanism is related to episódicas reductions of the sistémicas concentrations of cerotonina, which as well, will produce the observed vasomotores changes. The prodrómicos symptoms can be due to a intracerebral vasoconstricción; and there is one who attributes the headache to the substances released by an expansion of the arteries of the hairy leather.

The intracraneales malformations vasculares constitute a rare cause of migrañosa migraine. Migraña can take place to any age, but in general it begins between the 10 and 30 years, being more frequent in the women who in the men. After the 50 years often, the migraines send of partial or total way. In more of 50% of the cases, there are positive familiar antecedents.

Symptoms and signs

The migraine can be preceded by a short period of depression, irritability, restlessness, anorexy and, in some centellantes clients escotomas, defects of the field of view, parestesias or - exceptionally emiparecia. These symptoms can disappear immediately before it appears the migraine or control to her. The pain unilateral or is very generalized.

The symptoms usually follow a pattern in each client, except in whom the unilateral migraines can always not happen in the same side. The client can present/display daily episodes or only once every several months. If they do not treat, the crisis can last hours or days. Frequently there is nauseas, vomits or fotofobias. The arteries of the hairy leather are prominent and the amplitude of its pulsation is increased.

Diagnosis

The diagnosis is based previously on the described symptomatic pattern in a client who does not present/display sign some of intracraneal pathological alteration. The diagnosis is more probable if there are antecedents of migraña familiar or of visual problems (migraine classic).