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Related Experiment Videos

Polyarteritis nodosa associated with streptococcus

J David1, B M Ansell, P Woo

  • 1Section of Molecular Rheumatology, MRC Clinical Research Centre, Harrow, Middlesex.

Archives of Disease in Childhood
|December 1, 1993
PubMed
Summary
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This study describes vasculitis in children linked to streptococcal infections, presenting as nodular cutaneous polyarteritis. Some cases showed systemic involvement, suggesting a subset of post-streptococcal vasculitis may need advanced treatment.

Area of Science:

  • Pediatric Rheumatology
  • Infectious Diseases
  • Immunology

Background:

  • Vasculitic illnesses can occur following streptococcal infections in children.
  • Nodular cutaneous polyarteritis is a vasculitic condition with characteristic clinical features.
  • Streptococcal infections are common in pediatric populations and can trigger immune responses.

Purpose of the Study:

  • To describe the clinical and laboratory features of children with vasculitis associated with streptococcal infection.
  • To identify potential subsets of post-streptococcal vasculitis.
  • To evaluate treatment responses and outcomes in affected children.

Main Methods:

  • Retrospective case series describing twelve children.
  • Clinical assessment including physical examination and fever monitoring.

Related Experiment Videos

  • Laboratory investigations: acute phase response, antistreptolysin O (ASO) and antihyaluronidase titres, throat cultures, and arteriography in select cases.
  • Review of treatment regimens, including corticosteroid and cytotoxic therapy.

    • Main Results:

    • Twelve children presented with nodular cutaneous polyarteritis and fever, associated with streptococcal infection.
    • All patients exhibited an acute phase response with elevated ASO and antihyaluronidase titres.
    • Three patients had positive throat cultures for beta-hemolytic streptococcus.
    • Ten children required corticosteroid treatment.
    • Two patients with systemic involvement and abnormal arteriography had significantly elevated white blood cell counts (> 40 x 10(9)/l).

    Conclusions:

    • Children with streptococcal infection can develop a predominantly benign vasculitic illness resembling nodular cutaneous polyarteritis.
    • A subset of these patients may exhibit systemic involvement and require more aggressive treatment, potentially including cytotoxic agents.
    • These findings suggest a specific post-streptococcal vasculitis entity that warrants further investigation and tailored management strategies.