Moderately Severe Hemophilia A

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Retrieved
2021-01-23
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Moderately severe hemophilia A is a form of hemophilia A (see this term) characterized by factor VIII deficiency leading to abnormal bleeding as a result of minor injuries, or following surgery or tooth extraction.

Epidemiology

Moderately severe hemophilia A accounts for around 20% of all cases of hemophilia A.

Clinical description

The biological activity of factor VIII is between 1% and 5%. Spontaneous hemorrhages are rare.

Etiology

The disorder is caused by mutations in the F8 gene (Xq28) encoding coagulation factor VIII.

Genetic counseling

Transmission is X-linked recessive.