A Comparison of Temperatures Measured in Esophagus, Tympanic Membrane, Aorta and Right Atrium During Hyperthermia in Man

概要

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A comparison of temperatures measured in the lower esophagus, tympanic membrane and in the blood of right atrium and aortic arch was made during iatrogenic hyperthermia for the treatment of malignant metastatic cancer in a patient. At a steady state or during a slow change in blood temperature, temperatures of both the esophagus and the tympanic membrane were close to that of the aortic arch. However, we preferred the esophageal temperature as an index of the blood temperature, because measuring esophageal temperature could be performed simply and safely without giving any discomfort to the subject, and moreover the temperature change of the esophagus reflected quantitatively and quickly (lag time; 40-60 sec) the change of the blood temperature. Temperature of the tympanic membrane will be restricted to use as an index of the blood temperature because of the discomfort induced by touching a thermocouple to the membrane and a longer lag time (240 sec) to respond to the change in the blood temperature.
日本生気象学会の論文