• Bull. Tokyo Med. Dent. Univ. · Mar 1979

    An experimental study on the effect of plasma expanders on blood coagulability.

    • T Narita, I Matsumoto, T Kumazawa, and E Ikezono.
    • Bull. Tokyo Med. Dent. Univ. 1979 Mar 1;26(1):25-32.

    AbstractThe effect of various plasma expanders on blood coagulation was studied using the thromboelastography (TEG). Solutions of 5, 10, 20, and 50% concentration of each expander (6% low molecular weight hydroxyethyl-starch (6% Hespander), 3% dextran-40, 6% high molecular weight hydroxyethyl-starch (6 HES), and 6% dextran-70) or solvent (lactated Ringer solution and normal saline) in blood were prepared and their coagulability was examined by TEG. In the low molecular weight plasma expanders (6% Hespander and 3% dextran-40), in general, the coagulability decreased when the concentration was increased. In the high molecular weight plasma expanders (6 HES and 6% dextran-70), the coagulability increased slightly at low and high concentrations and the coagulability was reduced. As a conclusion, at clinically used concentrations of less than 20% in blood, changes in the TEG of the plasma expanders are minimum and have no clinical significance.

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