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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 .
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]
Type III von Willebrand Disease is a severe bleeding disorder, like severe hemophilia type A or B. VWF acts in primary hemostasis to recruit platelets at a site of injury, and is also important in secondary hemostasis, acting as a chaperone for coagulation factor VIII (FVIII). [20]
Type 3 von Willebrand disease is when dogs have low or no von Willebrand factor at all – less than 1% of normal. This slows clotting significantly, meaning this is the most severe form of von ...
It is similar to the ristocetin cofactor assay but has the added benefit in that it helps in the diagnosis of type 2B/pseudo von Willebrand disease (vWD) and Bernard–Soulier syndrome because it uses patient's live endogenous platelets, whereas ristocetin cofactor assay tests the function of only the vWF and not the platelets. Ristocetin ...
Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. This is a list of diseases ... Von Willebrand disease; Vulvodynia;
The National Bleeding Disorders Foundation (NBDF) is a United States patient advocacy organization for the care and treatment of inheritable blood and bleeding disorders such as hemophilia and von Willebrand disease. Founded in 1948, NBDF, then known as the National Hemophilia Foundation, helps secure funding for treatment centers and develops ...
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]
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