Haemophilia A and B, inherited as X-linked recessive traits, are the most common hereditary hemorrhagic disorders caused by a deficiency or dysfunction of blood coagulation factor VIII (FVIII) and factor IX (FIX).
Hemophilia A and B, inherited as X-linked recessive traits, are the most common hereditary hemorrhagic disorders caused by a deficiency or dysfunction of coagulation factor VIII (FVIII) or FIX, respectively.
Sequencing the complete factor IX gene of 2 sisters with hemophilia B with different phenotypes and no family history of hemorrhagic diathesis revealed a common 5' splice site mutation in intron 3 (T6704C) in both and an additional missense mutation (I344T) in one.
Hemophilia B Kashihara is a severe hemorrhagic disorder in which the factor IX antigen is present in normal amounts but factor IX biological activity is markedly reduced.
Hemophilia B Chapel Hill is a mild hereditary hemorrhagic disorder in which the factor IX antigen is present in normal amounts but factor IX biological activity is markedly reduced.
Factor VIII (FVIII) and its carrier protein von Willebrand factor (VWF) are associated with risk of arterial and venous thrombosis and with hemorrhagic disorders.
Severe AVS can be complicated by acquired von Willebrand syndrome, a haemorrhagic disorder associated with loss of high-molecular-weight von Willebrand factor (vWF) multimers (HMWM), the latter being a consequence of increased shear stress and enhanced vWF-cleaving protease (ADAMTS-13) activity.
This acquired hemorrhagic disorder is characterized by the loss of the large von Willebrand factor multimers due to the shear stress across the diseased aortic valve.
Plasma plasmin inhibitor (PI) is a physiological inhibitor of plasmin-mediated fibrinolysis and constitutes a hemostatic component in blood plasma; hence its deficiency results in a severe hemorrhagic diathesis.
Plasma plasmin inhibitor (PI) is a physiological inhibitor of plasmin-mediated fibrinolysis and constitutes a hemostatic component in blood plasma; hence its deficiency results in a severe hemorrhagic diathesis.
Synergistic effect of storage pool deficient platelets and low plasma von Willebrand factor on the severity of the hemorrhagic diathesis in Hermansky-Pudlak syndrome.
alpha 2-Plasmin inhibitor is the most important physiological inhibitor of fibrinolysis; hence, its deficiency results in a severe hemorrhagic diathesis.
It is concluded that not only the absence of alpha 2-antiplasmin but also a reduction in its plasma level to +/- 60% of normal may predispose to a hemorrhagic diathesis.
Acquired hemophilia A, due to spontaneous autoantibody against FVIII, is a rare hemorrhagic disorder with an incidence of about 1 per million population per year.
A significant association between thromboembolic/hemorrhagic disease in newborns and each of factor V(Leiden) and prothrombin G20210A mutations has been reported.