Abstract
The most aggravating condition of children was exerted by severe closed craniocerebral trauma, hemorrhage in the cerebral ventricles, subarachnoid hemorrhage in 1.3 groups of children with SCTBI.The predominance of the hyperdynamic nature of blood circulation in injured children of group 2, more pronounced daily fluctuations, a large amplitude of the circadian rhythm of CO was revealed.Comparatively more pronounced deviations in group 2, apparently, are the result of a more powerful mobilization of compensatory mechanisms realized through hypersympathetic influences in conditions of relatively less damage to the brain structures.Keywords: severe concomitant traumatic brain injury, minute volume of blood circulation, children.