[Hemodilution in the treatment of cerebrovascular disorders].

Haemodilution includes intravenous administration of plasma-replacing solutions and/or blood letting for changing the rheological properties of blood, and for improvement of microcirculation. Three methods of haemodilution various plasma substitutes are given: dextran, hydroxyethyl starch (HES), electrolyte solutions (e.g. Ringer's solution, normal saline, 5% glucose, colloidal plasma, protein solutions), plasma, albumins. The controversial results of clinical trials of the method for therapeutic purposes are discussed. In the light of the reports as yet, it seems that the best results are obtained using normovolaemic haemodilution with administration of HES.