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Body temperature measurements in pigs during general anaesthesia
G C Musk1, R S Costa2, J Tuke3
1School of Veterinary and Life Sciences, Murdoch University, Murdoch, Australia g.musk@murdoch.edu.au.
Laboratory Animals
|June 3, 2015
Summary
Pharyngeal temperature measurement is more accurate than rectal for estimating oesophageal temperature in anesthetized pigs. This finding is crucial for precise physiological monitoring during swine anesthesia.
Area of Science:
- Veterinary Medicine
- Anesthesiology
- Physiology
Background:
- Accurate core body temperature monitoring is vital in anesthetized animals.
- Previous studies have shown variability in temperature readings from different sites in pigs.
- Establishing reliable temperature measurement methods is essential for patient safety.
Purpose of the Study:
- To compare the accuracy of rectal, pharyngeal, and esophageal temperature measurements in anesthetized pigs.
- To determine the most suitable method for estimating esophageal temperature in this population.
- To provide data for improving temperature monitoring protocols in swine anesthesia.
Main Methods:
- Simultaneous rectal, pharyngeal, and esophageal temperature measurements were taken in 16 anesthetized pigs (16.2 ± 4.2 kg).
- Data analysis included Bland-Altman method, correlation coefficients, and error measures.
- Sixty-six sets of temperature data were collected and analyzed.
Main Results:
- Pharyngeal temperature showed a smaller bias (0.22 ℃) and error (0.2 ± 0.5 ℃) compared to esophageal temperature than rectal temperature (bias 0.69 ℃, error 0.7 ± 0.9 ℃).
- Correlation coefficient between pharyngeal and esophageal temperatures (0.87) was substantially higher than for rectal and esophageal temperatures (0.47).
- The 95% limits of agreement were narrower for pharyngeal (-0.84 to 1.28 ℃) versus rectal (-1.18 to 2.57 ℃) measurements against esophageal temperature.
Conclusions:
- Pharyngeal temperature measurement is a more reliable and accurate method for estimating esophageal temperature in anesthetized pigs compared to rectal measurement.
- These findings suggest that pharyngeal thermometry could be preferred for intraoperative temperature monitoring in swine.
- Improved temperature monitoring can lead to better anesthetic management and patient outcomes.
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