Department of Neuroanaesthesiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen University, Copenhagen, Denmark.
Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Paediatr Anaesth. 2022 Jul;32(7):870-879. doi: 10.1111/pan.14450. Epub 2022 Apr 9.
An increasing number of children undergo magnetic resonance imaging requiring anesthesia or sedation to ensure their immobility; however, magnetic resonance imaging may increase body temperature whereas sedation or anesthesia may decrease it. We investigated changes in body temperature in children who underwent sedation or anesthesia for magnetic resonance imaging.
Children aged 12 weeks-12 years undergoing anesthesia and magnetic resonance imaging were included in this prospective observational study. Tympanic body temperature was measured before and after magnetic resonance imaging, and the difference between measurements was calculated. Associations between the temperature difference and patient- or procedure-related factors were evaluated with linear and logistic regression analysis.
A total of 74 children were included, of whom 5 (7%) had a temperature increase ≥0.5°C. Mean temperature difference was -0.24°C (SD 0.48) for the entire group and -0.28°C for the youngest children (0-2 years). The temperature difference correlated positively with the duration of imaging (unadjusted coefficient 0.26, 95% confidence interval (CI), (0.01; 0.52)).
In this study of sedated or anesthetized children undergoing magnetic resonance imaging, clinically relevant increases in body temperature above 0.5°C were only found in a few patients. However, longer imaging duration tended to be associated with increased body temperature.
越来越多的儿童需要接受磁共振成像检查，为确保其身体静止，需要进行麻醉或镇静；然而，磁共振成像可能会导致体温升高，而镇静或麻醉则可能导致体温降低。我们研究了接受镇静或麻醉进行磁共振成像的儿童的体温变化。
本前瞻性观察研究纳入了接受麻醉和磁共振成像的 12 周-12 岁儿童。在磁共振成像前后测量鼓膜体温，并计算测量值之间的差值。采用线性和逻辑回归分析评估体温差值与患者或手术相关因素之间的相关性。
共纳入 74 名儿童，其中 5 名（7%）的体温升高≥0.5°C。整个组别的平均体温差值为-0.24°C（标准差 0.48°C），年龄最小的儿童（0-2 岁）的体温差值为-0.28°C。体温差值与成像时间呈正相关（未经调整的系数为 0.26，95%置信区间（CI）（0.01；0.52））。
在这项对接受镇静或麻醉进行磁共振成像的儿童的研究中，仅少数患者的体温升高超过 0.5°C，达到临床相关水平。然而，成像时间延长往往与体温升高相关。
