| Hageman Factor Deficiency - Factor XII Deficiency |
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Skortur á factor XII blóðstorkuþætti. Factor XII Deficiency (Hageman Factor) Described in 1955, factor XII deficiency is a very rare bleeding disorder. As a group, Asians are born with the deficiency more than any other ethnic group. The deficiency does not cause abnormal bleeding, even with major surgical procedures. The outcome is expected to be good even without treatment. The disorder is not sex-linked as is hemophilia. It affects both males and females with equal frequency. It is an autosomal recessive disorder, which means if the clotting defect is inherited from a parent, the child will be a genetic carrier of the condition, but may or may not have symptoms. There are usually no symptoms for factor XII deficiency. Because hemorrhaging and excessive bleeding are not associated with the deficiency, treatment is generally unnecessary. There are usually no complications. However, it's been suggested that factor XII deficiency may predispose to thrombosis. |