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  • Title: Characteristic features of the differential sphygmogram in peripheral vascular dilation.
    Author: Kazakova M.
    Journal: Cor Vasa; 1975; 17(3):188-96. PubMed ID: 1204358.
    Abstract:
    Characteristic features of differential sphygmogram were investigated in persons in whom the radial circulation had been interrupted in order to produce a partial distension of muscular-type arteries and minute peripheral vessels. Eighteen subjects aged 20-35 years were examined. The differential and volume sphygmograms were recorded in the radial artery. After a five-minute stoppage of the circulation, the following characteristic features of the differential sphygmogram were observed: 1) the differential curve assumed the shape of a triangle with a broad base; 2) the amplitudes of all wave components decreased, the B wave disappeared, the V2 wave was minimal, and the t2 time considerably extended. The ratios V2/V1 and V2/(V1 +V2) were considerably diminished. These ratios may serve as fundamental criteria for the appraisal of vascular elastic properties in an intact organism.
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