Comparison of peripheral and core temperatures in anesthetized horses.
Abstract: To examine temporal patterns of rectal, nasal, groin, and skin temperatures measured in adult horses undergoing general anesthesia and to determine accuracy and precision of temperatures at these sites, compared with core temperature. Methods: 5 healthy adult horses. Methods: Induction, maintenance of, and recovery from general anesthesia were performed in an air-conditioned surgical suite. Room temperature and relative humidity were approximately 21 C and 40%, respectively. Anesthesia was maintained for 2.5 hours, and body temperatures were measured and recorded every 5 minutes. Mean values were compared by use of ANOVA for repeated measures. Correlation coefficients for linear regressions of site temperature versus core temperature at 30-minute intervals were used to evaluate precision. Results: Rectal temperature decreased in a linear manner, similar to core temperature. Nasal, groin, and skin temperatures followed a biphasic pattern; they sharply increased initially, peaked, then decreased at a rate similar to that of core temperatures. Rectal temperature always accurately reflected core temperature. Initial significant differences between core temperature and nasal, groin, or skin temperature disappeared as peripheral site temperatures approached peak values. Precision of core temperature estimation was generally poor for rectal, groin, and skin temperatures but was high (r > 0.90) after the first hour of anesthesia. Conclusions: Anesthesia-induced core heat redistribution develops with minimal effect on core temperature. Rectal temperature can accurately reflect core temperature.
Publication Date: 1999-05-18 PubMed ID: 10328439
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- Comment
- Comparative Study
- Journal Article
- Adult Horses
- Anesthesia
- Clinical Findings
- Clinical Pathology
- Clinical Study
- Clinical Symptoms
- Comparative Study
- Diagnosis
- Diagnostic Technique
- Disease Diagnosis
- Equine Diseases
- Equine Health
- Horses
- Physiology
- Surgery
- Temperature
- Veterinary Care
- Veterinary Medicine
- Veterinary Procedure
- Veterinary Research
- Veterinary Science
Summary
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This research study investigates the patterns of temperature changes at different bodily sites in anesthetized horses, comparing the accuracy and precision of these measurements with core temperature.
Research Methodology
- The researchers used 5 healthy adult horses for the study. The anesthesia induction, maintenance, and recovery took place in an air-conditioned surgical suite maintaining a room temperature of approximately 21 C and relative humidity of 40%.
- The anesthesia was sustained for 2.5 hours, during which temperatures were measured and recorded every 5 minutes at the rectal, nasal, groin, and skin locations. Core temperature was considered as the reference for comparison.
- Statistical tools, namely ANOVA for repeated measures, were used to compare the mean values. Linear regression was applied with site temperature versus core temperature at 30-minute intervals to evaluate precision.
Research Results
- The results showed that the rectal temperature of the horses decreased linearly, similar to the core temperature. On the other hand, the nasal, groin, and skin temperatures initially shot up, peaked, and then decreased at a rate akin to the core temperatures.
- Although there were significant differences initially between the core temperature and the peripheral temperatures (nasal, groin, skin), these differences vanished as the peripheral site temperatures reached peak values.
- The study found that the precision of core temperature estimation was generally poor for rectal, groin, and skin temperatures during the early phase of anesthesia. However, the precision increased significantly (r > 0.90) after the first hour of anesthesia.
Conclusions
- The study concludes that under the effect of anesthesia, there’s a redistribution of core heat with a minimal impact on the core temperature itself.
- It was found that rectal temperature accurately reflects core temperature, making it a reliable site for body temperature monitoring in anesthetized horses.
Cite This Article
APA
Tomasic M, Nann LE.
(1999).
Comparison of peripheral and core temperatures in anesthetized horses.
Am J Vet Res, 60(5), 648-651.
Publication
Researcher Affiliations
- Department of Clinical Studies, School of Veterinary Medicine, New Bolton Center, University of Pennsylvania, Kennett Square 19348-1692, USA.
MeSH Terms
- Analysis of Variance
- Anesthesia, General / veterinary
- Animals
- Body Temperature
- Female
- Groin
- Horses / physiology
- Male
- Nose
- Rectum
- Regression Analysis
- Skin Temperature
- Time Factors
Citations
This article has been cited 1 times.- Gozalo-Marcilla M, Ringer SK. Recovery after General Anaesthesia in Adult Horses: A Structured Summary of the Literature. Animals (Basel) 2021 Jun 14;11(6).
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