Cobblestoning or interstitial fluid on US may indicate presence of culture-positive, purulent SSTI in patients without US appearance of abscess. Although our study has limitations due to its retrospective design, this US appearance should alert imagers that the patient may benefit from early I & D.
We evaluated if the introduction of a clinical pathway for skin and soft-tissue infections (SSTIs) would reduce methicillin-resistant Staphylococcus aureus (MRSA)-directed therapy for simple cellulitis and antibiotic use for simple abscess after drainage. We compared the treatment of SSTI during a 3-month prepathway and 11-month postpathway period. We included patients 57 days to 18 years old discharged from the emergency department (ED) with a diagnosis of cellulitis or abscess. Balancing measures included 72-hour revisit rate and ED length of stay (LOS). A total of 291 patients prepathway and 781 patients postpathway were included. The proportion of patients with simple cellulitis prescribed MRSA-directed therapy decreased from 81% to 54% postpathway. The proportion of patients with a drained abscess prescribed systemic antibiotics decreased from 88% to 75%. There was no increase in 72-hour revisit rates (3.8% vs 3.2%, P = .64) or ED LOS (2.8 vs 2.7 hours, P = .05).
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