HEMOSTASIS
The term hemophilia refers to a group of bleeding disorders in which there is a deficiency of one of the factors necessary for coagulation of the blood. Although the symptomatology is similar regardless of which clotting factor is deficient, the identification of specific factor deficiencies allows definitive treatment with replacement agents.
In about 80 % of all cases of hemophilia, the inheritance pattern is demonstrated as X-linked recessive. The tow most common forms of the disorder are factor VIII deficiency (hemophilia A, or classic hemophilia) and factor IX deficiency (hemophilia B, or Christmas disease). Von Willebrand disease (vWD) is another hereditary bleeding disorder characterized by a deficiency, abnormality, or absence of the protein called von Willebrand factor (vWF) and a deficiency of factor VIII. Unlike hemophilia, vWD affects both males and females. The following discussion is primarily concerned with factor VIII deficiency, which accounts for 80 % to 50 % of all hemophilia cases.
HEMOSTASIS
The term hemophilia refers to a group of bleeding disorders in which there is a deficiency of one of the factors necessary for coagulation of the blood. Although the symptomatology is similar regardless of which clotting factor is deficient, the identification of specific factor deficiencies allows definitive treatment with replacement agents.
In about 80 % of all cases of hemophilia, the inheritance pattern is demonstrated as X-linked recessive. The tow most common forms of the disorder are factor VIII deficiency (hemophilia A, or classic hemophilia) and factor IX deficiency (hemophilia B, or Christmas disease). Von Willebrand disease (vWD) is another hereditary bleeding disorder characterized by a deficiency, abnormality, or absence of the protein called von Willebrand factor (vWF) and a deficiency of factor VIII. Unlike hemophilia, vWD affects both males and females. The following discussion is primarily concerned with factor VIII deficiency, which accounts for 80 % to 50 % of all hemophilia cases.
การแปล กรุณารอสักครู่..
