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The acquired immunodeficiency syndrome in infants and children
Insights
Diagnosing pediatric acquired immunodeficiency syndrome (AIDS) involves assessing risk factors, distinct immune system changes like hypergammaglobulinemia, and confirming the AIDS retrovirus. Early infant diagnosis requires viral isolation to rule out passive antibody transfer.
Area of Science:
- Pediatrics
- Immunology
- Virology
Background:
- Pediatric acquired immunodeficiency syndrome (AIDS) presents unique diagnostic challenges.
- Risk factors include maternal intravenous drug use, contaminated blood transfusions, and factor VIII therapy.
- A specific immunologic profile, including polyclonal hypergammaglobulinemia and T-cell immunodeficiency, is characteristic of pediatric AIDS.
Purpose of the Study:
- To outline the diagnostic criteria for pediatric acquired immunodeficiency syndrome (AIDS).
- To differentiate pediatric AIDS from other immunodeficiency disorders.
- To emphasize the importance of virologic confirmation in diagnosis.
Main Methods:
- Classification based on epidemiologic, immunologic, and virologic data.
- Identification of individuals at risk for pediatric AIDS.
- Exclusion of primary immunodeficiency diseases such as adenosine deaminase and purine nucleoside phosphorylase deficiency.
Main Results:
- Pediatric AIDS is characterized by a distinct immunologic phenotype: polyclonal hypergammaglobulinemia and T-cell immunodeficiency.
- Detection of antibody to the AIDS retrovirus or viral isolation is crucial for diagnosis.
- In early infancy, viral isolation is essential to overcome passive IgG transfer from the mother.
Conclusions:
- A diagnosis of pediatric AIDS is established by the presence of risk factors, characteristic immunologic abnormalities, and confirmation of the AIDS retrovirus.
- Distinguishing pediatric AIDS from other immunodeficiencies is critical for appropriate management.
- Virologic confirmation is paramount, especially in infants, to ensure accurate diagnosis.
Abstract:
The classification of the pediatric acquired immunodeficiency syndrome (AIDS) is based on epidemiologic, immunologic, and virologic data. Persons at risk include mothers who use intravenous drugs, infants who have received blood transfusions from subjects with risk factors, patients receiving factor VIII therapy, and infants born to heterosexual mothers with bisexual husbands. A distinct immunologic phenotype, rarely seen in other immunodeficiency disorders, is associated with pediatric AIDS consisting of polyclonal hypergammaglobulinemia and T-cell immunodeficiency. Detection of antibody to the AIDS retrovirus or isolation of virus are essential in establishing a diagnosis. During early infancy, viral isolation is essential as passive transfer of material IgG may occur. Primary immunodeficiency diseases, in particular adenosine deaminase and purine nucleoside phosphorylase deficiency, should be excluded. A diagnosis of pediatric AIDS may be established in a patient who has a risk factor associated with AIDS, polyclonal hypergammaglobulinemia, T-cell immunodeficiency, and antibody to the AIDS retrovirus or isolation of virus.
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