Figure 3From: Salvage therapy with high dose Intravenous Immunoglobulins in acquired Von Willebrand Syndrome and unresponsive severe intestinal bleeding Kinetics of von Willebrand factor antigen (VWF:Ag) in plasma of the patient with acquired von Willebrand syndrome after replacement therapy with Hemate P. VWF:Ag levels were measured 2 days before and 2, 3 and 4 days after starting high dose intravenous immunoglobulin (Ig) infusion. Back to article page