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Thus, women with VWD should start pregnancy after being well characterized as to their type, subtype, and treatments. Women with VWD who have VWF and FVIII basal levels >30 U/dL typically normalize these levels at the end of pregnancy and specific anti-hemorrhagic prophylaxis is seldom required.
- Table 1
Given the wide heterogeneity of phenotypes and of the...
- Mcmdm-1Vwd
Introduction. von Willebrand factor (VWF) is a multimeric...
- Table 1
May 20, 2019 · 1 INTRODUCTION. Von Willebrand disease (VWD), the most frequent autosomal inherited bleeding disorder, is caused by quantitative or qualitative defects of von Willebrand factor (VWF), an adhesive protein that binds platelets to exposed sub-endothelium and carries factor VIII (FVIII) in circulation. 1, 2 As a consequence, in addition to the defect of VWF, also FVIII, the protein deficient in ...
- Giancarlo Castaman, Paula D. James
- 2019
May 1, 2017 · During pregnancy, hormonal influences lead to an increase in vWF and clotting factors VII, VIII, and X while anticoagulant factors (such as protein S) decrease, shifting hemostasis to a procoagulant state to compensate for anticipated hemorrhage during parturition. 3 Although vWF and FVIII levels rise and peak during the third trimester, women with vWD remain at risk of early pregnancy ...
- Caroline Berube, Brian Dietrich
- 2017
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Many people with von Willebrand disease don't know it because the signs are mild or absent. The most common sign of the condition is abnormal bleeding.
There are three main types of the disease. The amount of bleeding varies from one person to another, depending on the type and severity of the disease.
If you have von Willebrand disease, you might have:
•Excessive bleeding from an injury or after surgery or dental work
•Frequent nosebleeds that don't stop within 10 minutes
•Heavy or long menstrual bleeding
Contact your doctor if you have bleeding that lasts a long time or is hard to stop.
Request an appointment
The usual cause of von Willebrand disease is an inherited abnormal gene that controls von Willebrand factor — a protein that plays a key role in blood clotting.
When you have low levels of this protein or it doesn't work as it should, small blood cells called platelets cannot stick together properly nor attach themselves normally to the blood vessel walls when an injury has occurred. This interferes with the clotting process and can sometimes cause uncontrolled bleeding.
Many people with von Willebrand disease also have low levels of factor VIII, another protein that helps in clotting.
Factor VIII is involved in another inherited clotting disorder called hemophilia. But unlike hemophilia, which mainly affects males, von Willebrand disease affects males and females and is usually milder.
The main risk factor for von Willebrand disease is having a family history of it. Parents pass the gene for the disease to their children. Rarely, the disease skips generations.
The disease is usually an "autosomal dominant inherited" disorder, which means you need a mutated gene from only one parent to get the disease. If you have the gene for von Willebrand disease, you have a 50% chance of transmitting this gene to your children.
Rarely, von Willebrand disease can cause uncontrollable bleeding, which can be life-threatening. Other complications of von Willebrand disease can include:
•Anemia. Heavy menstrual bleeding can cause iron deficiency anemia.
If you plan to have children and have a family history of von Willebrand disease, consider genetic counseling. If you carry the gene for von Willebrand disease, you can pass it on to your offspring, even if you don't have symptoms.
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By Mayo Clinic Staff
Oct 26, 2021
1.Von Willebrand disease. Centers for Disease Control and Prevention. https://www.cdc.gov/ncbddd/vwd/facts.html. Accessed Aug. 26, 2021.
2.AskMayoExpert. Von Willebrand disease. Mayo Clinic; 2021.
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Von Willebrand disease is a prevalent condition in females of childbearing age, and during pregnancy, it is associated with a higher risk of postpartum bleeding, exposure to massive transfusion protocols, pulmonary edema, acute renal injury, postpartum bleeding-related maternal mortality, and transfusion-related complications .
Nov 5, 2020 · During pregnancy, the hemostatic balance is changing toward a procoagulant state in order to be prepared for blood loss during delivery and the postpartum period. 4-8 This procoagulant state is caused by a physiological increase of many coagulation factors, including factor VIII (FVIII) and von Willebrand factor (VWF) with a peak shortly before giving birth. 7 The procoagulant state is also ...
Jun 7, 2022 · Von Willebrand disease (VWD), first described by Dr. Erik von Willebrand, is the most common autosomal inherited bleeding disorder. It is caused by deficiency or dysfunction of von Willebrand factor (VWF), a plasma protein that mediates the initial adhesion of platelets at sites of vascular injury, and binds and stabilizes blood clotting factor ...
