• Hye-Sung Park, Chengde Pham, Eldho Paul, Alex Padiglione, Cheng Lo, and Heather Cleland.
• Victorian Adult Burns Service, Alfred Hospital, 55 Commercial Road, Melbourne, Victoria, Australia. Electronic address: hye-sung.park@hotmail.com.
• Burns. 2017 Dec 1; 43 (8): 1757-1765.

BackgroundEarly excision of burns reduces the incidence of local and systemic infections caused by colonising microorganisms, and reduces mortality and length of hospital stay. Appropriate antibiotic prophylaxis can reduce the risk of postoperative wound infections and skin graft loss. Antibiotic selection should be based on likely pathogens. However, there are few studies that have investigated the early pathogenic colonisers of acute burn wounds.AimTo describe pathogenic microorganisms found in acute burns and to make further recommendations on the use of early perioperative prophylactic antibiotics.MethodsAll burns patients admitted at the tertiary adult burns centre in Victoria over a 2-year period, who had surface swabs or tissue samples obtained from wounds within 24h of injury were included in this retrospective cohort study. Pathogenic organisms were examined with respect to patient characteristics, burn characteristics, treatment provided and immediate exposure to environmental contaminants.ResultsNearly one third of burns patients had wounds colonised with pathogenic microorganisms. Gram-negative bacteria were isolated from 52% of these. Staphylococcus aureus was the most common isolate. Pseudomonas and Enterobacter species were the most common gram-negatives. The only independent risk factor associated with early colonisation with gram-negative bacteria was per cent TBSA burn.ConclusionIncreased colonisation of acute burn wounds with pathogenic gram-negative bacteria was associated with increased size of burn.Copyright © 2017 Elsevier Ltd and ISBI. All rights reserved.

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