Low-molecular-weight dextran infusion is more effective for the treatment of hemoconcentration due to severe ovarian hyperstimulation syndrome than human albumin infusion.

The most severe complication of ovarian hyperstimulation syndrome (OHSS) is thromboembolism, which is related to hemoconcentration. Dextran 40 infusion has greater effectiveness for the treatment of hemoconcentration due to OHSS than does human albumin infusion.