• P B Sherren, J Hussey, R Martin, T Kundishora, M Parker, and B Emerson.
• Department of Anaesthesia and Intensive Care, The Royal London Hospital, London, UK. Electronic address: petersherren@gmail.com.
• Burns. 2014 Dec 1;40(8):1492-6.

IntroductionHypothermia, acidaemia and coagulopathy in trauma is associated with significant mortality. This study aimed to identify the incidence of the lethal triad in major burns, and describe demographics and outcomes.MethodsPatients admitted during a 71 month period with a total body surface area burn (TBSA)≥30% were identified. A structured review of a prospective database was conducted. The lethal triad was defined as a combination of coagulopathy (International normalised ratio>1.2), hypothermia (temperature≤35.5°C) and acidaemia (pH≤7.25).ResultsFifteen of 117 patients fulfilled the criteria for the lethal triad on admission. Lethal triad patients had a higher median (IQR) abbreviated burn severity index (ABSI) (12 (9-13) vs. 8.5 (6-10), p=0.001), mean (SD) TBSA burn (59.2% (18.7) vs. 47.9% (18.1), p=0.027), mean (SD) age (46 (22.6) vs. 33 (28.3) years, p=0.033), and had a higher incidence of inhalational injury (p<0.0001) and full-thickness burns (p=0.021). Both groups received similar volumes of fluid (p>0.05). The lethal triad was associated with increased mortality (66.7% vs. 13.7%, p<0.0001). With logistic regression analysis and adjustment for ABSI, the lethal triad was not shown to be a predictor of mortality (p>0.05).ConclusionBurn patients with the lethal triad have a high mortality rate which reflects the severity of the injury sustained.Copyright © 2014 Elsevier Ltd and ISBI. All rights reserved.

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