[Laws of typological interactions of clino- and antiorthostatic systemic and cerebral circulation in children].
Based on P. K. Anokhin's systems approach, the authors analyze the typological features of the mechanisms of clinostatic and anti-orthostatic systemic and cerebral circulation in children aged 7-9 years. Children with eukinetic systemic circulation have stable total peripheral vascular resistance in antiorthostasis, the mechanisms of cerebral hemodynamic regulation ensure constriction of local arterioles, those with hypokinetic systemic circulation have decreased total peripheral vascular resistance and lower constriction of cerebral arteries and arterioles. In hyperkinetic circulation, total peripheral resistance increases with slight constriction of cerebral arterioles and marked deterioration of venous blood outflow from the cerebral pool. The typological features of systemic and cerebral circulation should be borne in mind in pediatric clinical practice. The findings allow one to mathematically predict the changes occurring in anti-orthostatic hemodynamics in the context of its typological features.
Gavrikov
K V
KV
Isupov
I B
IB
D002560:Cerebrovascular Circulation / Q000502:physiology*; D002648:Child; D006112:Gravitation; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D011187:Posture / Q000502:physiology*; D018667:Tilt-Table Test