ThP7.10 - Perioperative Temperature in Relation to Theatre Temperature in Orthopaedic Trauma Patients in a District Hospital in NHS

Abstract Aim To understand the relation between intraoperative hypothermia and theatre temperature in Orthopaedic trauma list. Method Prospective analysis of patients listed in the trauma list at a busy district general hospital in NHS. The data collected included duration of surgery, preoperative temperature, pre induction temperature, intra-operative, post procedure, temperature in recovery and temperature post recovery, and mean ambient theatre temperature. Statistical calculations were performed on StatsDirect3 software. Results A total of 100 patients were included in the study from 1 Aug 2023 to 30 September 2023. Intraoperative hypothermia (core body temperature <= 36) was 21%. Preoperative temperature (p=0.033) and preinduction temperature (p<0.001) was statistically significant factor in influencing the intraoperative temperature. Theatre temperature was an independent predictor of intraoperative hypothermia on regression analysis (p<0.001). Conclusions Theatre temperature of 19.5 to 20.5 °C results in a core body intraoperative temperature of 36.3 to 37.3°C. Temperatures below 19.5 results in higher incidence of hypothermia. Preinduction temperature of 36.4°C results in intraoperative temperature of 36°C and a preinduction temperature of 37.1°C leads to intraoperative temperature of 36.7°C. This indicates that preoperative warming as well as a theatre temperature of 19.5 to 20.5 °C will help in reduction of the intraoperative hypothermia.