• Frédéric Lapostolle, Jean Luc Sebbah, James Couvreur, François Xavier Koch, Dominique Savary, Karim Tazarourte, Gerald Egman, Lynda Mzabi, Michel Galinski, and Frédéric Adnet.
• Crit Care. 2012 Jan 1;16(4):R142.

IntroductionHypothermia is common in trauma victims and is associated with an increase in mortality. Its causes are not well understood. Our objective was to identify the factors influencing the onset of hypothermia during pre-hospital care of trauma victims.MethodsThis was a multicenter, prospective, open, observational study in a pre-hospital setting.ResultsA total of 448 patients were included. Hypothermia (<35 °C) on hospital arrival was present in 64/448 patients (14%). Significant factors associated with the absence of hypothermia in a multivariate analysis were no intubation: Odds Ratio: 4.23 (95% confidence interval 1.62 to 1.02); RTS: 1.68 (1.29 to 2.20); mobile unit temperature: 1.20 (1.04 to 1.38); infusion fluid temperature: 1.17 (1.05 to 1.30); patient not unclothed: 0.40 (0.18 to 0.90); and no head injury: 0.36 (0.16 to 0.83).ConclusionsThe key risk factor for the onset of hypothermia was the severity of injury but environmental conditions and the medical care provided by EMS were also significant factors. Changes in practice could help reduce the impact of factors such as infusion fluid temperature and mobile unit temperature.

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