Development of a von Willebrand-like syndrome after prolonged use of hydroxyethyl starch.
A 29-year-old female with no prior history of bleeding tendencies had gingival bleeding develop after 10 days of treatment with hydroxyethyl starch (HES), 1,000 mL/day. Laboratory studies revealed a marked reduction in Factor VIII coagulant activity (VIII:C), von Willebrand's factor antigen (vWF:Agn), and (VIII R:RCo), resembling severe type I von Willebrand's disease. The HES was stopped and the bleeding subsided. The levels of Factor VIII:C, vWF:Agn, and Factor VIII R:RCo gradually increased to normal over the following 17 days.
D000328:Adult; D001780:Blood Coagulation Tests; D005260:Female; D005884:Gingival Hemorrhage / Q000139:chemically induced; D006801:Humans; D006895:Hydroxyethyl Starch Derivatives / Q000009:adverse effects*; D013213:Starch / Q000031:analogs & derivatives*; D013577:Syndrome; D014842:von Willebrand Diseases / Q000097:blood / Q000139:chemically induced*
D006895:Hydroxyethyl Starch Derivatives; D013213:Starch