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[Anti-rubella IgM and IgG antibodies in congenital cardiopathy]
Insights
Congenital heart disease is linked to in utero rubella virus infection. However, testing for rubella antibodies (IgM or IgG) is not recommended for isolated congenital heart disease cases, except for full congenital rubella syndrome.
Area of Science:
- Virology
- Immunology
- Pediatric Cardiology
Context:
- In utero rubella virus infection is a known cause of congenital heart disease (CHD).
- The study investigated the prevalence of anti-rubella antibodies in children with CHD.
- Comparison was made with a control group of healthy children from similar socioeconomic backgrounds.
Purpose:
- To determine the prevalence of IgM and IgG anti-rubella antibodies in children with congenital heart disease.
- To assess the diagnostic utility of rubella antibody testing in isolated congenital heart disease.
- To differentiate between rubella-associated CHD and other forms of congenital heart defects.
Summary:
- Sera from 32 children with CHD and 12 controls were tested for IgM and IgG anti-rubella antibodies.
- High IgG anti-rubella antibody titers were found only in a patient with full congenital rubella syndrome.
- No significant difference in IgM or IgG anti-rubella antibody prevalence was observed between the CHD group and the control group.
Impact:
- The findings suggest that routine screening for rubella antibodies is not beneficial for children with isolated congenital heart disease.
- This research helps refine diagnostic approaches for congenital heart defects.
- It emphasizes the importance of considering specific clinical syndromes like congenital rubella syndrome when evaluating potential rubella exposure.
Abstract:
In utero infection by rubella virus is a well known cause of congenital heart disease. We look for prevalence of anti-rubella antibodies of IgM (primary response) or IgG (anamnestic response) classes in sera of 32 children with congenital heart disease and in 12 normal children of the same socioeconomic background. Only in a patient with a full congenital rubella syndrome we found high titers of IgG anti-rubella antibodies, there was no difference in prevalence of IgM nor IgG anti-rubella antibodies between normals and cardiac patients. There is no reason to look for anti-rubella antibodies in the isolated congenital heart disease.