Long Term Preservation of Whole Blood with Hydroxethyl Starch.

Abstract : Studies in vitro indicate that hydroxyethyl starch is an effective extracellular cryoprotective agent for erythrocytes. It is as effective as polyvinylpyrrolidone in cryophylactic ability. It is degraded to glucose units in the circulation, is not retained in tussues, and is inexpensive to produce. Changes in the size and degree of hydroxyethylation of the branched-chain starch may result in a more effective cryoprotective agent. (Author)