Wang Jingyan, Liang Hao, Tian Congzhe, Rong Guiyuan, Shao Xinfeng, Ran Cheng
Department of Otolaryngology, Affiliated Hospital of Hebei University, 212th Yuhua Road, Baoding, Hebei, China.
Department of Anesthesiology, The First Central Hospital of Baoding, Baoding, Hebei, China.
Eur J Med Res. 2025 Jan 30;30(1):60. doi: 10.1186/s40001-025-02317-9.
The patient's body temperature significantly fluctuates, affected by factors, including anesthesia. The ideal temperature monitoring method that is suitable for perioperative application is of great significance for identifying hypothermia and malignant hyperthermia early, as well as for guiding intraoperative temperature protection. This study aims to compare the cutaneous zero-heat-flux (ZHF) thermometer application in general anesthesia using the infrared tympanic measurement as a reference. We conducted a prospective observational study and enrolled 130 patients scheduled for major surgery with general anesthesia. A forehead ZHF sensor (T) and an infrared tympanic thermometer (T) were used to continuously measure core temperature. We assessed the agreement using Bland-Altman analysis and concordance correlation coefficient, comparing the paired measurement of T and T. We further calculated the percentage of difference within 0.5 ℃ between the two devices. Sensitivity, specificity, and predictive values were estimated to interpret the performance of the ZHF thermometer in detecting hypothermia and hyperthermia. The analysis involved 1626 pairs of measurements for the comparison. The mean difference between the ZHF and the tympanic measurements was 0.11 ℃ ± 0.27 ℃, 93.5% of the measurements differences fell within ± 0.5 ℃. T was significantly correlated with T (r = 0.90). The ZHF thermometry detected the presence of T hypothermia with sensitivity and specificity of 0.89 and 0.88, respectively. Temperature monitoring with the ZHF thermometer indicates a good agreement with the infrared tympanic measurement and a high performance for detecting intraoperative hypothermia.
患者体温受包括麻醉在内的多种因素影响而显著波动。适用于围手术期的理想体温监测方法对于早期识别体温过低和恶性高热以及指导术中体温保护具有重要意义。本研究旨在以红外鼓膜测量为参照，比较皮肤零热流（ZHF）温度计在全身麻醉中的应用。我们进行了一项前瞻性观察研究，纳入了130例计划接受全身麻醉下大手术的患者。使用前额ZHF传感器（T）和红外鼓膜温度计（T）连续测量核心体温。我们采用Bland-Altman分析和一致性相关系数评估两者的一致性，比较T和T的配对测量值。我们进一步计算了两种设备测量值相差在0.5℃以内的百分比。估计敏感性、特异性和预测值以解读ZHF温度计在检测体温过低和体温过高方面的性能。分析涉及1626对用于比较的测量值。ZHF测量值与鼓膜测量值的平均差值为0.11℃±0.27℃，93.5%的测量差值在±0.5℃以内。T与T显著相关（r = 0.90）。ZHF测温法检测到T体温过低的敏感性和特异性分别为0.89和0.88。使用ZHF温度计进行体温监测表明其与红外鼓膜测量结果具有良好的一致性，并且在检测术中体温过低方面具有较高的性能。
