eMedicine Specialties > Pediatrics: General Medicine > Hematology
Hemophilia A and B: Follow-up
Updated: Dec 2, 2008
Follow-up
Deterrence/Prevention
- Do not circumcise male infants born to mothers who are known or thought to be carriers of hemophilia until disease in the infant has been excluded with appropriate laboratory testing. Perform blood assays of factor VIII (FVIII) or factor IX (FIX) with cord blood. When a cord blood sample is not available, obtain a sample from a superficial limb vein; avoid femoral and jugular sites.
- Routine immunizations that require injection (eg, diphtheria, tetanus toxoids, and pertussis [DPT] or measles-mumps-rubella [MMR] vaccines) may be given by means of a deep subcutaneous route (rather than deep intramuscular route) with a fine-gauge needle.
- Administer the hepatitis B vaccine (now routinely administered to all children) soon after birth to all infants with hemophilia.
- Administer the hepatitis A vaccine to those individuals with hemophilia and no hepatitis A virus antibody in their serum.
Complications
- Hemorrhagic complications
- Chronic debilitating joint disease results from repeated hemarthrosis; synovial membrane inflammation; hypertrophy; and, eventually, destructive arthritis. Early replacement of coagulation factors by means of infusion is essential to prevent functional disability. Thus, prophylactic therapy administered 2-3 times weekly, starting when patients are young, is considered the standard of care in developed countries.
- Coagulation factor inhibitor to factor VIII (FVIII) develops in about 30% of patients with severe hemophilia A, less often in those with severe hemophilia B (2%), and rarely in those with moderate or mild hemophilia.
- Nonhemorrhagic complications
- Most patients with hemophilia who received plasma-derived products that were not treated to eliminate potential contaminating viruses were infected with HIV or hepatitis A, hepatitis B, or hepatitis C viruses. With new methods of purification and improved screening of donors, these infectious complications now are only historically important. However, even with these methods, some viruses (eg, parvovirus B19) cannot be removed and may be transmitted through plasma-derived products. Other potential infectious agents include those that cause Creutzfeldt-Jacob disease. With the development of animal protein–free products the risk of contamination with these agents may be decreased.
- Chronic liver disease is also a significant problem in patients with hepatitis C virus infection.
Patient Education
- In infants, regular dental evaluation is recommended, along with instruction regarding proper oral hygiene, dental care, and adequate fluoridation.
- Encourage the patient to engage in appropriate exercise.
- Advise the patient against participating in contact and collision sports.
- For excellent patient education resources, visit eMedicine's Blood and Lymphatic System Center. Also, see eMedicine's patient education article Hemophilia.
Miscellaneous
Medicolegal Pitfalls
- Hemorrhagic manifestations of a coagulopathy, such as hemophilia, may be mistaken for signs of child abuse.
More on Hemophilia A and B |
| Overview: Hemophilia A and B |
| Differential Diagnoses & Workup: Hemophilia A and B |
| Treatment & Medication: Hemophilia A and B |
Follow-up: Hemophilia A and B |
| Multimedia: Hemophilia A and B |
| References |
| « Previous Page | Next Page » |
References
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Further Reading
Keywords
hemophilia a, hemophilia b, factor VIII deficiency, FVIII deficiency, factor VIII hemophilia, factor IX deficiency, FIX deficiency, factor IX hemophilia, Christmas disease, angiostaxis, coagulation disorder, coagulation deficiency, bleeding disorder, hepatitis A, hepatitis B, hepatitis C, human immunodeficiency virus infection, HIV, hemarthrosis, hematomas, petechiae, vasculitis
Follow-up: Hemophilia A and B