[Mechanisms of the development of autonomic regulation disorders in neurogenic syncope in childhood].

Based on a clinico-anamnestic analysis and comparison of the data of comprehensive studies of vegetative nervous system functions it was discovered that in 85 children aged 4 to 14 years suffering from neurogenous syncopes, vegetovascular maintenance of the processes of activation and adaptation turned out insufficient. It is shown that in early childhood, the formation of vegetative dysregulation occurs under the influence of numerous factors, of which the most significant are hereditary predisposition to paroxysms, perinatal pathology, and psychogenic effects. It is established that there are two possible variants of the combination of pathophysiological alterations predetermining the clinical picture and phenomenology of neurogenous syncopes in children.