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Keywords:

  • hydroxyethyl starch;
  • von Willebrand's disease

Summary

Hydroxyethyl starch (HES) (Hespan, DPont) is a widely used synthetic volume expander which in standard doses of up to 1.51 in 24 h has no significant effect on coagulation (Munsch et al. 1988). However, the data sheet states that in large volumes HES may alter the coagulation mechanism. We now report a case of HES induced acquired von Willebrand's disease (vWD) in which severe bleeding occurred.