Von Willebrand disease (vWD) (t) is the most common hereditary coagulation abnormality described in humans, although it can also be acquired as a result of other medical conditions. It arises from a qualitative or quantitative deficiency of von Willebrand factor (vWF), a multimeric protein that is required for platelet adhesion. It is known to aff...
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http://en.wikipedia.org/wiki/Von_Willebrand_disease
inherited blood disorder characterized by a prolonged bleeding time and a deficiency of factor VIII, an important blood-clotting agent. This disorder ... [1 related articles]
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http://www.britannica.com/eb/a-z/v/36
Von Willebrand disease is an inherited bleeding disorder. The disease is named after the doctor who discovered it, Erik von Willebrand. People born with the disease have one or both of the following: • Low levels of a protein called von Willebrand factor that helps the blood to clot • Vo...
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http://www.daviddarling.info/encyclopedia/V/Von_Willebrand_disease.html
<disease, haematology> A hereditary platelet disorder caused by defective or deficient Von Willebrand factor, a protein involved in normal blood clotting, that reduces adhesion to collagen but not aggregation. Both bleeding time and coagulation are increased. Factor VIII levels are secondarily reduced. ... Symptoms include nosebleeds, bleedin...
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http://www.encyclo.co.uk/local/20973
(fōn vil´ә-brahnt) a congenital, autosomal dominant, coagulopathy, characterized by a prolonged bleeding time, deficiency of the von Willebrand factor, and often impairment of platelet adhesion. It is associated with nosebleeds, as well as increased bleeding after trauma, after surgery, during menstruation, a...
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http://www.encyclo.co.uk/local/21001
Type: Term Pronunciation: von vil′ĕn-brahnd Definitions: 1. a hemorrhagic diathesis characterized by tendency to bleed primarily from mucous membranes, prolonged bleeding time, normal platelet count, normal clot retraction, partial and variable deficiency of factor VIIIR, and possibly a morphologic defect of platelets; autosomal dominant...
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http://www.medilexicon.com/medicaldictionary.php?t=25881
Von Willebrand disease: An inherited bleeding disorder in which a clotting protein called von Willebrand factor is deficient or defective. Von Willebrand factor is made by cells lining the wall of blood vessels. When vessels are damaged, platelets normally clump at the site of the injury. Von Willebrand factor acts as glue to help the platelets clu...
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http://www.medterms.com/script/main/art.asp?articlekey=31159
a mild form of hemophilia caused by an abnormality in the von Willebrand factor, which is necessary for platelets to be able to attach themselves to a vein or artery to form a clot to stop bleeding.
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https://www.stanfordchildrens.org/en/topic/default?id=glossary---hematology
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