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[The effect of 6% hydroxyethyl starch, 45% dextran 60 and 5.5% oxy-poly-gelatine on blood volume and circulation in human volunteers (author's transl)].

Studies in 30 volunteers showed that the volume increasing effect of a 2.5% Oxypolygelatine-solution is rather short (90 to 240 min), whereas the volume effect of a 4.5% Dextran 60 solution remained stable over a period of 240 min hydroxethyl-starch solution 6% caused a distinct increase in blood volume after a period of 90 min and of 240 min in five volunteers, while the blood volume of the other volunteers remained rather constant. The parameters we measured provide no explanation for this effect.