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Recurrent infections with IgG2 deficiency.

A Plebani, M Duse, V Monafo

Archives of Disease in Childhood

|July 1, 1985

Summary

This summary is machine-generated.

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Recurrent infections in children may signal a combined deficit in IgG2 subclass and specific antibodies, even with normal immunoglobulin levels. Early diagnosis and immunoglobulin replacement therapy can significantly improve clinical outcomes.

Area of Science:

Immunology
Pediatric Infectious Diseases

Background:

Recurrent infections and bronchiectasis in children can indicate underlying immune deficiencies.
Normal total serum immunoglobulin levels can sometimes mask specific antibody deficits.

Observation:

An 11-year-old girl presented with growth retardation, recurrent infections, and bronchiectasis.
Her serum immunoglobulin concentrations were normal, but she had a combined deficit of the IgG2 subclass and IgG and IgM specific antibodies.

Findings:

The patient's combined IgG2 subclass and specific antibody deficiency was identified as the cause of her recurrent infections.
Immunoglobulin replacement therapy led to marked clinical improvement.

Implications:

This case highlights the importance of assessing IgG subclasses and specific antibody function in children with recurrent infections, even with normal total immunoglobulin levels.

Related Experiment Videos

Comprehensive immunologic evaluation is crucial for accurate diagnosis and effective treatment of pediatric immune deficiencies.