Anestezi Dergisi, cilt.31, sa.4, ss.339-348, 2023 (Scopus)
Objective: Perioperative hypothermia is deleterious with many consequences, including coagulopathy, decreased immune functions, prolonged drug clearance, and cardiovascular complications. In this study we aimed to demonstrate the incidence of perioperative hypothermia during general anesthesia, its associated risk factors, and outcomes. Methods: For this prospective cohort study patients aged 18-75 years with American Society of Anesthesiologists physical status I-III scheduled for any elective operation under general anesthesia in a one-month period were recruited. The patients’ body temperatures were measured in the preoperative unit, in the operating theatre before induction, at the second hour of the operation, at the end of the operation, at the postoperative recovery unit admission, and discharge using a medical infrared thermometer. The patients’ demographic and hemodynamic characteristics, magnitudes of surgery, surgery and anesthesia durations, warming methods, hospital and Intensive Care Unit (ICU) length of stays were recorded. Results: Sixty five out of 290 enrolled patients (22.4%) developed perioperative hypothermia. Anesthesia and surgery time was longer in patients with hypothermia (p<0.001). Hospital length of stay of the patients was also longer in the patients with hypothermia (p<0.001). Intensive care unit admission of the patients with hypothermia was significantly higher compared with those with normothermia (2.7 vs 9.2%, p=0.030). Conclusion: Perioperative hypothermia continues to be a challenge despite many published clinical application guidelines in this context. Intermediate and major type surgeries resulted in more perioperative hypothermia. Perioperative hypothermia was significantly associated with longer operation and anesthesia durations, hospital length of stays, and higher ICU admissions as well. Routine monitoring and active warming should be performed throughout the perioperative period to prevent hypothermia and current practice guidelines should be followed.