Abstract: Objective: To explore the incidence and risk factors of patients with Intraoperative Acquired Pressure Injury (IAPI). Methods: Scott Triggers Preoperative Evaluation Scale was performed. Totally 610 patients were selected. Logistic regression analysis was used to analyze the risk factors of IAPI. Results: Totally 121 (19.8%) patients had intraoperative acquired pressure injury, among which 89 (73.6%) had stage 1 pressure injury, 8 (6.6%) had stage 2 pressure injury, and 24 (19.8%) had deep tissue injury. There were significant differences of IAPI between surgery time, different surgical position, intraoperative position movement, extracorporeal circulation, and use of heating blanket perspectively (P<0.001). Conclusion: Patients with high risk pressure injury and special surgical position should be monitored during and post operation. The preventive strategies of IAPI need to be applied for the high risk patients in order to reduce the incidence of pressure injury, ensure the safety of the patients and improve the quality of nursing in the operation room.

Key words: Scott Triggers preoperative evaluation scale; Intraoperative Acquired Pressure Injury ( IAPI); factors