FIELD: medicine.
SUBSTANCE: method involves carrying out Doppler flowmetry examination and determining vasoconstriction reserve P(-) in response to hypocapnic loading and vasodilation reserve P(+) in response to hypercapnic loading. Peripheral resistance index (PRI) is additionally determined before applying load and cerebral vegetative index (CVI) is calculated as CVI= P(-)/P(+)/PRI. PRI and CVI changing in opposite directions, vegetative tone and responsiveness changes are thought to be adequate. Opposite directivity being interrupted, the changes are considered to be inadequate.
EFFECT: high reliability in determining vegetative tone and responsiveness.
5 tbl
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