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Von Willebrand disease (VWD) is the most common hereditary blood-clotting disorder in humans. An acquired form can sometimes result from other medical conditions. [ 1 ] It arises from a deficiency in the quality or quantity of von Willebrand factor (VWF), a multimeric protein that is required for platelet adhesion .
Vonicog alfa, sold under the brand names Vonvendi and Veyvondi, is a medication used to control bleeding in adults with von Willebrand disease (an inherited bleeding disorder). [6] [5] [7] [8] It is a recombinant von Willebrand factor. [6] [5] The most common adverse reactions are generalized itching, vomiting, nausea, dizziness, and vertigo. [6]
Von Willebrand factor (VWF) (German: [fɔn ˈvɪləbʁant]) is a blood glycoprotein that promotes hemostasis, specifically, platelet adhesion.It is deficient and/or defective in von Willebrand disease and is involved in many other diseases, including thrombotic thrombocytopenic purpura, Heyde's syndrome, and possibly hemolytic–uremic syndrome. [5]
The increased risk of clots can be attributed to several things. Plasma levels of pro-coagulantion factors increased markedly in pregnancy, including: von Willebrand Factor, fibrinogen, factor VII, factor VIII, and factor X. [24]
This bleeding disorder is called "Von Willebrand Disease". The term "haemophilia" is derived from the term "haemorrhaphilia" which was used in a description of the condition written by Friedrich Hopff in 1828, while he was a student at the University of Zurich.
Type 1 von Willebrand Disease in dogs. Type 1 von Willebrand Disease is the most common type, and also the mildest. It occurs when dogs have a mild deficiency in all the proteins making up their ...
The Gp Ib functions as a receptor for von Willebrand factor (VWF). The complete receptor complex includes noncovalent association of the alpha and beta subunits with platelet glycoprotein IX and platelet glycoprotein V to form the glycoprotein Ib-IX-V complex .
Von Willebrand disease is the most common coagulopathy, and most women with von Willebrand disease have heavy menstrual bleeding. [23] Of women with heavy menstrual bleeding, up to 20% will have a bleeding disorder. [24]