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Acquired haemophilia A (AHA) is a rare but potentially life-threatening bleeding disorder characterized by autoantibodies directed against coagulation factor VIII.These autoantibodies constitute the most common spontaneous inhibitor to any coagulation factor and may induce spontaneous bleeding in patients with no previous history of a bleeding disorder.
A non-genetic form of haemophilia is caused by autoantibodies against factor VIII and so is known as acquired haemophilia A. [15] It is a rare but potentially life-threatening bleeding disorder caused by the development of autoantibodies (inhibitors) directed against plasma coagulation factors. [ 45 ]
Hemophilia A affects about 25 in every 100,000 male births worldwide, according to data cited by Pfizer, with majority of them having a moderate to severe form of the disease for which the gene ...
Contaminated hemophilia blood products were a serious public health problem in the late 1970s up to 1985. [citation needed] Hemophilia A causes a deficiency in Factor VIII, a protein required for blood clotting. Factor VIII injections are a common treatment to prevent or stop bleeding in people with hemophilia A. [1]
Joint capsule. Haemophilia A's phenotype has a quite wide range of symptoms encompassing both internal and external bleeding episodes. Individuals with more severe haemophilia tend to experience more intense and frequent bleeding, whereas those with mild haemophilia typically exhibit milder symptoms unless subjected to surgical procedures or significant trauma.
The prevalence of Hemophilia B in the population is about one in 40,000; Hemophilia B represents about 15% of patients with hemophilia. [6] Many female carriers of the disease have no symptoms. [6] However, an estimated 10-25% of female carriers have mild symptoms; in rare cases, female carriers may have moderate or severe symptoms. [6]
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Hemoglobinopathies (congenital abnormality of the hemoglobin molecule or of the rate of hemoglobin synthesis) . Sickle cell disease; Thalassemia; Methemoglobinemia; Anemias (lack of red blood cells or hemoglobin)