Evaluation of gastric tube with esophageal Thermister (Thermosump
1992
The accuracy and the feasibility of esophageal temperature measured by a new gastric tube. Thermosump®, which is incorporated with a esophageal thermister, was evaluated in anesthetized dogs (n=6) and men (n=59). In dogs, esophageal temperature measured by Thermosump ® was correlated well with the temperatures measured by the conventional esophageal thermister, and also by the pulmonary artery catheter (r=0.98, 0.98, respectively). In anesthetized men, correlation between esophageal temperature by Thermosump® and rectal, or bladder temperature was good during surgery of extremities (r=0.81, 0.80, respectively). But during abdominal surgery, correlation between esophageal and bladder temperature was relatively poor (r=0.50). Insertion of the tube, and suction of gastric fluid through the tube were easy without any complication. This newly developed gastric tube with a esophageal thermister was safe, and useful for measuring esophageal temperature.
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