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Type II hypersensitivity involves IgG and IgM antibodies targeting cell surface antigens, leading to cell destruction. This can occur through complement activation, antibody-dependent cell-mediated cytotoxicity (ADCC), or acting as opsonins for phagocytosis. When excessive, these reactions cause significant tissue damage.Drug-induced hemolytic anemia is a common example, where drugs like penicillin or cephalosporins bind to red blood cells, forming drug-protein complexes. These complexes...
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Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells
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[Autoimmune hemolytic anemia in children].

M Becheur1, B Bouslama2, H Slama2

  • 1Laboratoire d'hématologie, hôpital d'Enfants Béchir Hamza de Tunis, Bab Saadoun, 1004 Jabbary, Tunis, Tunisie.

Transfusion Clinique Et Biologique : Journal De La Societe Francaise De Transfusion Sanguine
|November 18, 2015
PubMed
Summary

Pediatric autoimmune hemolytic anemia (AIHA) involves red blood cell destruction by autoantibodies, differing from adult forms. This review details AIHA classifications, including warm, cold, and paroxysmal cold hemoglobinuria, covering their epidemiology, causes, symptoms, diagnosis, and treatments.

Keywords:
Anémie hémolytiqueAuto-anticorpsAuto-immuneAutoantibodiesAutoimmuneChildCoombs TestEnfantHemolytic AnemiaTest de Coombs

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Area of Science:

  • Pediatrics
  • Immunology
  • Hematology

Background:

  • Autoimmune hemolytic anemia (AIHA) is a rare pediatric condition.
  • It is characterized by immune-mediated destruction of red blood cells (RBCs) due to autoantibodies.
  • The specific autoantibodies dictate the clinical presentation and classification of AIHA.

Purpose of the Study:

  • To provide a comprehensive overview of pediatric autoimmune hemolytic anemia.
  • To discuss the distinct features of AIHA in children compared to adults.
  • To review the epidemiology, etiology, clinical presentation, laboratory evaluation, and treatment options for different AIHA classifications.

Main Methods:

  • This is a review article.
  • Information was gathered from existing literature on pediatric autoimmune hemolytic anemia.
  • The review categorizes AIHA into warm autoimmune hemolytic anemia, cold autoimmune hemolytic anemia, and paroxysmal cold hemoglobinuria.

Main Results:

  • Pediatric AIHA presents with diverse clinical entities based on autoantibody characteristics.
  • Key classifications include warm AIHA, cold AIHA, and paroxysmal cold hemoglobinuria.
  • Each classification has unique epidemiological, etiological, clinical, and therapeutic profiles.

Conclusions:

  • Understanding the specific classification of pediatric AIHA is crucial for effective management.
  • This review consolidates essential information for clinicians diagnosing and treating AIHA in children.
  • Further research may elucidate more targeted therapeutic strategies for pediatric AIHA subtypes.