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KMID : 1147420180030020033
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Journal of Surgical Infection
2018 Volume.3 No. 2 p.33 ~ p.37
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Incidence of Inadvertent Intraoperative Hypothermia during Abdominal Surgery and Its Risk Factor under Active Warming Device
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Nam Soo-Min
Yeon Jeong-Hwa
Hur Ho
Kang Jung-Gu
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Abstract
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Objectives: Inadvertent intraoperative hypothermia during surgery induce poor surgical outcome such as bleeding, surgical site infection and prolonged hospital stay. Therefore, it is important to maintain normothermia using multiple tools for warming. The aim of this study is to identify incidence and risk factors of inadvertent intraoperative hypothermia during active warming.
Methods: The patients who received cholecystectomy, gastrectomy or colectomy from January 2014 to June 2016 were included. The patients underwent at least one of three methods of warming: forced air warming, warming mattress and heated breathing circuit. A total of 1,438 patients are enrolled and medical records were retrospectively reviewed.
Results: The incidence of inadvertent hypothermia was 55.6% (n=799). Our result demonstrated that hypothermia group (n=799) was correlated with old age (63.22±15.45 vs. 56.81±16.45, p<0.001), low body mass index (23.13±5.60 vs. 24.68±5.14, p<0.001), low preoperative body temperature (36.57±1.87 vs. 36.80±0.44, p<0.001), ASA score≥3 (39.8% vs. 31.6%, p=0.001), cooperation with other organs (5.6% vs. 1.3%, p<0.001) and prolonged operation time (123.13±79.45 vs. 86.92±55.48, p<0.001) when compared to non-hypothermia group (n=639). In multivariate analysis, older age, lower preoperative body temperature, ASA score≥3, colectomy than cholecystectomy, cooperation with other organs and prolonged operation time were identified as risk factor for inadvertent hypothermia.
Conclusion: Our study showed that inadvertent intraoperative hypothermia was very common even during active warming. Old age, low preoperative body temperature, high ASA score, more extended and prolonged surgery were risk factors for hypothermia. Patients with risk factors should be provided with more effective active warming devices prior to and during surgery.
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KEYWORD
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Hypothermia, General surgery, Body temperature
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