Hemophilia B
A deficiency of blood coagulation factor IX inherited as an X-linked disorder. (Also known as Christmas Disease, after the first patient studied in detail, not the holy day.) Historical and clinical features resemble those in classic hemophilia (HEMOPHILIA A), but patients present with fewer symptoms. Severity of bleeding is usually similar in members of a single family. Many patients are asymptomatic until the hemostatic system is stressed by surgery or trauma. Treatment is similar to that for hemophilia A. (From Cecil Textbook of Medicine, 19th ed, p1008)
Year introduced: 1999(1966)
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Subheadings:
Tree Number(s): C15.378.100.100.510, C15.378.100.141.510, C15.378.463.510, C16.320.099.510, C16.320.322.235
MeSH Unique ID: D002836
Entry Terms:
- Bs, Hemophilia
- Hemophilia Bs
- Hemophilia B(M)
- Hemophilia Bs (M)
- Plasma Thromboplastin Component Deficiency
- F9 Deficiency
- Deficiencies, F9
- Deficiency, F9
- F9 Deficiencies
- Haemophilia B
- Haemophilia Bs
- Christmas Disease
- Disease, Christmas
- Deficiency, Factor IX
- Deficiencies, Factor IX
- Factor IX Deficiencies
- Factor IX Deficiency
- Hemophilia B Leyden
See Also: