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Necrotizing Soft Tissue Infections
1Northeastern Ohio Universities College of Medicine, Rootstown, OH, and Summa Health System, 75 Arch Street, Suite 105, Akron, OH 44304, USA. filet@summa-health.org
Abstract:
Necrotizing soft tissue infections are characterized by necrosis of skin and associated structures. Despite advances in the diagnosis and treatment of these infections, the mortality remains high. There have been increasing reports of necrotizing fasciitis caused by group A Streptococcus over the past decade. Recent information supports the role of superantigens in the pathogenesis of this infection. The approach to management requires expeditious evaluation with early surgery and appropriate antimicrobial agents. Limited data suggest that surgical debridement may be delayed in selected patients until the patient is stable by the use of intravenous immunoglobulin, which can neutralize superantigens.
Insights
Necrotizing soft tissue infections, particularly necrotizing fasciitis caused by group A Streptococcus, have high mortality rates. Intravenous immunoglobulin may allow delayed surgery by neutralizing superantigens, improving patient outcomes.
Area of Science:
- Infectious Diseases
- Microbiology
- Surgery
Background:
- Necrotizing soft tissue infections (NSTIs) present with skin and associated structure necrosis.
- Despite diagnostic and therapeutic advances, NSTIs are associated with high mortality rates.
- Group A Streptococcus (GAS) is increasingly reported as a cause of necrotizing fasciitis (NF).
Purpose of the Study:
- To review the pathogenesis and management of necrotizing soft tissue infections.
- To highlight the role of superantigens in GAS necrotizing fasciitis.
- To discuss the potential role of intravenous immunoglobulin in managing these infections.
Main Methods:
- Literature review of necrotizing soft tissue infections.
- Analysis of recent reports on group A Streptococcus necrotizing fasciitis.
- Evaluation of treatment strategies including surgery, antimicrobials, and immunoglobulin therapy.
Main Results:
- Necrotizing soft tissue infections are severe infections with high mortality.
- Superantigens play a significant role in the pathogenesis of GAS necrotizing fasciitis.
- Early surgical debridement and antimicrobial agents are crucial for management.
Conclusions:
- Prompt evaluation and intervention are critical for managing necrotizing soft tissue infections.
- Intravenous immunoglobulin may offer a strategy to neutralize superantigens and potentially allow for delayed surgical debridement in select patients.
- Further research is needed to establish the role of intravenous immunoglobulin in the management of these severe infections.
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