Effect of perioperative hypothermia on surgical site infection in abdominal surgery: A prospective cohort study.

What is already known about this topic? Around the world, surgical site infection is a complication that leads to damage to the patient and increased costs for the health services. Despite recent advances in surgical techniques, surgical site infection remains one of the most frequent complications in abdominal surgery. Perioperative hypothermia can increase the incidence rates of surgical site infection. There is evidence that perioperative hypothermia is associated with surgical site infection in abdominal surgery, but most studies were conducted in developed countries using retrospective designs. What this paper adds? Perioperative hypothermia was identified as an independent risk factor for surgical site infection in patients undergoing abdominal surgery. The attributable fraction to the exposed indicated that, if the main exposure of interest (perioperative hypothermia) could be prevented during surgical anaesthetic procedures, more than 40% of surgical site infection cases would be avoided. The classification of the American Society of Anaesthesiologists was independently associated with the surgical site infection and presented a dose-response effect among its categories. Spinal anaesthesia served as an independent protective factor for surgical site infection. The implications of this paper: The health service managers need to be aware of potential cost-savings associated with perioperative hypothermia prevention as a measure to reduce the incidence of surgical site infection. During the perioperative period, health professionals need to implement effective measures to maintain patients' normothermia, promoting improved care and surgical patient safety. In this context, the nurse's role is fundamental. Future research projects using a prospective design and developed to address the reality of developing countries can contribute to the strengthening and consistency of the findings with a view to a global understanding of the surgical site infection problem.