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  • Title: [Hemorheologic changes in patients with obliterative arteriopathy of the leg before and after muscle exercise tests].
    Author: Bianco S, Todini AR, Fabiani F, Bartolo M.
    Journal: J Mal Vasc; 1990; 15(3):291-5. PubMed ID: 2212878.
    Abstract:
    Blood and plasma viscosity, erythrocyte filtrability and blood gas analysis were determined in 25 subjects with arteriosclerosis obliterans of the lower limbs before and after a muscle exercise test. Thirty-six shear rates between 0 and 230 s1 were studied to obtain viscosity curves, and regression analysis was performed for each curve. Mean viscosity curves for pathologic and control populations were plotted. The purpose of the study was to determine whether viscosity curves for blood and plasma before and after exercise, based on a high number of measurements, can provide information on rheological changes during intermittent claudication. Practically all viscosity curves in pathologic and control subjects could be described using a hyperbolic equation. Plasma as well as blood viscosity increased in pathologic subjects after exercise. However, erythrocyte filtrability and blood gas analysis in pathologic and control subjects, and blood and plasma viscosity in control subjects, showed no statistically significant changes after exercise. It is suggested that muscle exercise in reduced blood flow conditions can alter the aggregation of macromolecular complexes of plasma proteins, which could have an influence on cell components by modifying blood rheological behavior during claudication.
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