[Reaction of the skin microvessels to a change in blood flow to the extremities based on data from photoplethysmography and laser Doppler fluxmetry].

A comparative study of the non-invasive methods of photoplethysmography and laser Doppler fluxmetry in the assessment of dermal vascular responses of the forearm has been made. Vasoconstrictive and vasodilatation responses on intracutaneous introduction of noradrenaline in a dose of 10(-6) g have been quantitatively assessed. Correlation volumes of vascular responses in the use of these methods have been obtained.