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  1. A standard definition of post-partum hemorrhage (PPH) considers the threshold of >500 mL blood loss for vaginal delivery and of >1,000 mL for caesarean section 13. Rates of PPH in Western Countries based on hospital discharge may range from 3 to 6%, while cases needing blood transfusion are as low as 1 % 10.

  2. Von Willebrand disease is the most common inherited bleeding disorder among American women, with a prevalence of 0.6–1.3% 1. The overall prevalence is even greater among women with chronic heavy menstrual bleeding, and ranges from 5% to 24% 2 3. Among women with heavy menstrual bleeding, von Willebrand disease appears to be more prevalent ...

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  4. 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
  5. 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 ...

  6. 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 ...

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