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Staphylococcus aureus
18%
440/2388
Staphylococcus epidermidis
2%
47/2388
Group A streptococcus
74%
1769/2388
Enterobacteriaceae
1%
26/2388
Pseudomonas
4%
89/2388
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The above clinical vignette is describing necrotizing fasciitis. Necrotizing fasciitis is a rare and often fatal soft-tissue infection that requires high clinical suspicion and prompt administration of broad-spectrum antibiotics and aggressive surgical debridement (illustrations A). Fontes et al found that although polymicrobial infections including gram-positive, gram-negative, aerobic, and anaerobic bacteria were found most commonly in necrotizing fasciitis, Group A streptococcus was the most common bacterial isolate. Wong et al also found the most isolated organism to be group A streptococcus. In their study, the highest associated medical comorbidity was diabetes mellitus (71%). They found that delay in surgery of more than 24 hours was correlated with increased risk of death.
4.3
(36)
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