The Accuracy of a Wireless Axillary Thermometer for Core Temperature Monitoring in Pediatric Patients Having Noncardiac Surgery: An Observational Study

作者：Yingtong Ji, Han Ding, Lu Han, Siyuan Xie, Shoudong Pan · 发表于：Journal of PeriAnesthesia Nursing · 年份：2021 · DOI：10.1016/j.jopan.2021.02.008 · 被引用次数：13 · 研究领域：Thermal Regulation in Medicine、Thermoregulation and physiological responses、Climate Change and Health Impacts

Purpose A wireless and wearable axillary thermometer (iThermonitor) has been validated for perioperative core temperature monitoring in adults. The purpose of this study was to evaluate its accuracy in pediatrics having non–cardiac surgery. Design Prospective observational study. Methods From January 2019 to December 2019, 70 children aged younger than 14 years undergoing surgery in a tertiary hospital were selected. Pairs of esophageal temperatures (T Eso ), rectal temperatures (T Rec ), and axillary temperatures monitored by the iThermonitor (T iTh ) were collected every 5 min during surgery. Taking T Eso as reference, the bias between T Eso and T iTh and the proportion of bias within ±0.5°C were calculated. Bland-Altman method was used to analyze the 95% of limits of agreement (LOA) between T iTh and T Eso . The same analyses were done for T Rec. Findings A total of 2232 pairs of temperatures were collected. The bias (mean ± SD) between T iTh and T Eso was -0.07 °C ± 0.25°C, and 95% LOA was -0.07°C ± 0.50°C. The proportion of bias within ±0.5°C accounted for 96% (95% Confidence Interval [CI], 92-98%). Higher bias and 95% LOA, and lower proportion of bias within ± 0.5°C were found between T Rec and T Eso than those between T iTh and T Eso . Conclusion During pediatric non–cardiac surgery, axillary temperature derived from iThermonitor is in good agreement with esophageal temperature and can be used as an alternative to core temperature.