Application of infrared thermography in the early warning of pressure injury: A prospective observational study

作者：Fuman Cai, Xiaoqiong Jiang, Xiangqing Hou, Duolao Wang, Yu Wang, Haisong Deng, Hailei Guo, Hai-Shuang Wang, Xiaomei Li · 发表于：Journal of Clinical Nursing · 年份：2020 · DOI：10.1111/jocn.15576 · 被引用次数：50 · 研究领域：Pressure Ulcer Prevention and Management、Infrared Thermography in Medicine、Thermal Regulation in Medicine

AIMS AND OBJECTIVES: To verify the ability of infrared thermography in objectively identifying pressure injury and its application value in the early warning of pressure injury. BACKGROUND: There is subjectivity in assessing the risk of pressure injury as well as diagnosis in clinical settings, which makes early detection and prevention difficult. DESIGN: Prospective, cohort study. METHOD: Four hundred and fifteen patients admitted to the adult intensive care units were enrolled by a convenience sampling method, and they received a follow-up monitoring for 10 days. The risk of pressure injury was assessed via Braden scale, and thermal images of sacral area were obtained by infrared thermal imager once a day. The predictive effects of infrared thermography and Braden scale on pressure injury were compared by the receiver operating characteristic curve from which the optimal cut-off value of skin temperature for predicting pressure injury was determined. The effect of skin temperature on pressure injury was described and compared, using Kaplan-Meier curve and Cox proportional hazard regression model, respectively. We followed STROBE checklist for reporting the study. RESULTS: The relative temperature of sacral area was negatively correlated with the risk of pressure injury. The efficiency of infrared thermography for diagnosing pressure injury was better than that of Braden scale. Based on the relative temperature optimal cut-off value (-0.1°C), Kaplan-Meier curve and Cox propo...