[Effect of the incidence of allergies among relatives on the risk level for development of infantile convulsions and epilepsy in their progeny].

A clinico-genealogical study revealed an increased (in 2--3 times) frequency of allergies in epileptic patients and their close relatives (291 families) in comparison with a general population (118 families). Risk for appearance of epilepsy and children's convulsions among the sibs of the probands with parental allergic loading occurred to be 2 times higher than without it. It is established that parental allergic loading and its degree is one of a family-constitutional risk factors that significantly raises the frequency of a phenotypical manifestation of hereditary predisposition to epilepsy and children's convulsions.