Sakuragi T, Mukai M, Dan K
Department of Anesthesiology, School of Medicine, Fukuoka University, Japan.
Br J Anaesth. 1993 Oct;71(4):583-5. doi: 10.1093/bja/71.4.583.
We have compared deep body temperature (DBT) measured at the forehead with the core temperatures of the nasopharynx, oesophagus and rectum during the warming phase of cardiopulmonary bypass (CPB) (moderate hypothermia of 26.7-29.6 degrees C) in 12 patients. DBT was measured transcutaneously by an insulated thermistor probe that created an area of zero thermal flow between skin and subcutaneous tissue. The core temperatures measured at different sites lagged behind the increase in arterial blood temperature during warming. The trend was most marked with rectal temperature and least with oesophageal temperature. Among all measurements, the closest linear relationship was found between forehead DBT and nasopharyngeal core temperature (0.99 x nasopharyngeal temperature (degrees C) -0.07; SEE = 0.53; r = 0.99; P < 0.0001). Forehead DBT measurement may be useful as a reliable non-invasive method of monitoring cerebral temperature during CPB.
我们比较了12例患者在体外循环（CPB）升温阶段（26.7 - 29.6摄氏度的中度低温）期间，前额测量的深部体温（DBT）与鼻咽、食管和直肠的核心温度。DBT通过绝缘热敏电阻探头经皮测量，该探头在皮肤和皮下组织之间形成零热流区域。在升温过程中，不同部位测量的核心温度落后于动脉血温度的升高。这种趋势在直肠温度中最为明显，在食管温度中最不明显。在所有测量中，前额DBT与鼻咽核心温度之间发现了最紧密的线性关系（0.99×鼻咽温度（摄氏度） - 0.07；标准误 = 0.53；r = 0.99；P < 0.0001）。前额DBT测量作为CPB期间监测脑温的可靠非侵入性方法可能有用。
