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Related Experiment Videos

Streptococcal toxic shock-like syndrome

J E Wolf1, L G Rabinowitz

  • 1Department of Medicine, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pa.

Archives of Dermatology
|January 1, 1995
PubMed
Summary
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Invasive group A streptococcal infections, including streptococcal toxic shock-like syndrome, are reemerging globally. Increased virulence in these bacteria may explain the rise in severe, life-threatening cases.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Public Health

Background:

  • Invasive infections with group A streptococci (GAS) are reemerging globally after decades of decline.
  • Young, healthy adults are increasingly affected by a severe disorder, streptococcal toxic shock-like syndrome (STSS), characterized by fever, shock, and multiorgan failure.
  • STSS is linked to increased GAS virulence and the emergence of exotoxin-producing strains.

Purpose of the Study:

  • To reexamine the changing spectrum of invasive GAS infections.
  • To understand the clinical manifestations and pathogenesis of STSS.
  • To raise awareness among clinicians regarding the increasing incidence and presentation of STSS.

Main Methods:

  • Analysis of clinical features of STSS, including soft-tissue involvement and progression to severe outcomes.

Related Experiment Videos

  • Investigation of the role of streptococcal pyrogenic exotoxins and endogenous cytokines in mediating tissue injury and systemic toxicity.
  • Epidemiological examination of the resurgence of virulent GAS strains, including those with specific exotoxin genes.

    • Main Results:

    • STSS frequently involves soft-tissue infections (80%) and can rapidly progress to necrotizing fasciitis, myositis, or death.
    • Streptococcal pyrogenic exotoxins appear to mediate severe tissue injury and multiorgan system failure.
    • The rise in invasive GAS infections correlates with the resurgence of highly virulent strains, including Staphylococcus pyogenes carrying pyrogenic exotoxin A.

    Conclusions:

    • The changing spectrum of invasive GAS infections necessitates a reevaluation of the microorganism and its clinical presentations.
    • Epidemiological data suggest a clonal basis for the increased virulence observed in these strains.
    • Timely diagnosis and treatment of STSS are crucial for effective patient management due to its increasing incidence.