RESUMO
The functional state of the cardiovascular system of children aged 8-12 years who underwent COVID-19 was studied. It has been shown that one of the mechanisms of functional disorders in the cardiovascular system in the period from 3 to 6 months after suffering COVID-19 is considered a syndrome of autonomic dysfunction. The manifestations of autonomic dysfunction in children are hypertensive changes in the cardiovascular system in the absence of pronounced clinical manifestations, the presence of functional tension of regulatory systems, unsatisfactory functional status, decreased rates of increase in heart rate power in response to load, low values of sympathetic regulation mechanisms and centralization of the cardiovascular system regulation circuit, a large proportion of the influence of the peripheral regulation circuit. Conclusion. One of the pathogenetic mechanisms for reducing the functional parameters of the cardiovascular system in children who have had a coronavirus infection is endothelial dysfunction syndrome.