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Accuracy of Zero Heat Flux Cutaneous Temperature in Adult Patients Undergoing General Anaesthesia

Matthieu Boisson

出版	2017
URL	http://books.google.com.hk/books?id=VmyzzQEACAAJ&hl=&source=gbs_api

註釋

Introduction: Core temperature monitoring is mandatory during major surgery. The accurate techniques currently used are mostly invasive, such as pulmonary artery catheter (PAC) and esophageal probe. A new non-invasive cutaneous device, using zero-heat flux method, continuously measures core temperature. This prospective study compared the accuracy of zero-heat flux (TZHF) to esophageal temperature (TESO) in adult patients during surgery.Study Type Prospective, observational, monocentric studyMaterial and Methods: Patients undergoing general anaesthesia for gut surgery lasting more than 2 hours were included after obtaining informed consent. Continuous monitoring of temperature was carried out simultaneously by 3Mu00ae SpotOnu00ae non-invasive sensor using zero-heat flux method and an esophageal probe (Mon-a-Thermu00ae,Covidienu00ae). Comparison was performed using the Bland-Altman method to determine bias and limits of agreement adjusted for multiple measures per patient. Multivariate analysis for possible factors influencing accuracy was performed using logistic regression model. Results: From October to November 2015, 30 patients were included and 1114 pairs of TZHF and TESO were collected. Esophageal temperature ranged from 34.1 to 39.3u00b0C. Compared to TESO, TZHF bias and limits of agreement were -0.15 u00b1 0.63u00b0 C (figure) with an absolute difference of temperature pairs equal to or lower than 0.5u00b0C for 91.5% [95%CI, 85.9% to 97.3%] of cases. The accuracy of TZHF was not influenced by the use of norepinephrine or ephedrine boluses. No local or systemic complication was observed.Conclusion: The cutaneous sensor using the zero-heat-flux method is accurate and may be recommended to continuously monitor core temperature during gut surgery.Conflict of interest 3Mu00ae supplied free of charge the monitor and the sensors SpotOnu00ae.