Comparison of three methods of temperature measurement in hypothermic, euthermic, and hyperthermic dogs

Greer, Rebecca; Cohn, Leah A.; Dodam, John R.; Wagner‐Mann, Colette C.; Mann, F. A.

doi:10.2460/javma.230.12.1841

Cited by 78 publications

(163 citation statements)

References 19 publications

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“…(2006) hypothesised that the device would be less accurate in hyperthermic patients, based on results from the human literature. The findings of Greer et al (2007) were in support of this theory, however, they investigated anaesthetised laboratory animals with endotoxin induced hyperthermia. To date, the effects of physiological, exercise induced hyperthermia on device accuracy have not been investigated in canine athletes.…”

Section: Introductionmentioning

confidence: 85%

“…Rectal temperature (RT) is the most widely used method of estimating core temperature in veterinary medicine (Greer et al, 2007;Southward et al, 2006), however this method is not tolerated in all dogs (Lamb and McBrearty, 2013) and can prove impractical in non-clinical situations. Where rectal temperature is tolerated, assistance is often required in order to restrain the patient for temperature measurement.…”

Section: Introductionmentioning

confidence: 99%

“…For these reasons there has been continued interest in alternative methods of estimating core temperature, such as infrared auricular thermometers, axillary temperature recording and the use of infrared thermography (Lamb and McBrearty, 2013;Yanmaz et al, 2015). Infrared auricular thermometers measure the tympanic membrane temperature (TMT) and provide an attractive alternative to RT measurement, both in terms of speed (Greer et al, 2007) and patient tolerance. Lamb and McBrearty (2011) found that conscious canine patients were less likely to require additional restraint for TMT measurement than RT measurement.…”

Section: Introductionmentioning

confidence: 99%

“…This variation may be due to the use of nonveterinary specific auricular thermometers. The veterinary specific devices appear to be more reliable with mean differences ranging from -0.015 °C to 0.77 °C (Rexroat et al, 1999;Gonzalez et al, 2002;Wiedemann et al, 2006;Greer et al, 2007;Piccione et al, 2011;Lamb et al, 2013;Gomart et al, 2014;Smith et al, 2015). The majority of these studies report that TMT measures consistently lower than rectal temperature.…”

Section: Introductionmentioning

confidence: 99%

“…The majority of these studies report that TMT measures consistently lower than rectal temperature. Improved accuracy of the veterinary specific thermometer has been reported in hypothermic patients when compared to hyperthermic patients in a clinical setting (Greer et al, 2007). Southward el al.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of rectal and tympanic membrane temperature in healthy exercising dogs

Hall

Carter

2017

CEP

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Running header:Comparison of rectal and tympanic membrane temperature in exercising dogs. AbstractThe ability to monitor body temperature in athletes at risk of hyperthermia is essential in all species. Currently, the only commonly accepted temperature monitoring site in dogs is the rectum. This is impractical in field situations as it takes time, requires additional handlers to restrain the dog and is not tolerated by all animals. Tympanic membrane temperature (TMT) monitoring may provide a rapid measure of body temperature to facilitate identification of heat stress and heat stroke in canine athletes. In human studies, TMT diverges from rectal temperature (RT) as body temperature increases during exercise induced hyperthermia so is not recommended for monitoring human athletes. If the same divergence occurs in dogs, TMT may not be suitable for use when monitoring the temperature of canine athletes.The aim of the study was to determine if TMT diverged from RT following exercise in healthy dogs. 24 healthy dogs were recruited to the study. Body temperature was measured using a veterinary auricular infrared thermometer (VetTemp) to record tympanic membrane temperature and an electric predictive rectal thermometer. Temperatures were recorded pre and post exercise in a non-clinical setting, familiar to the dogs.The mixed model approach showed that exercise had no effect on the difference between RT and TMT (F(1,201) =0.026, P=0.872). The overall mean difference of RT minus TMT was 0.39°C (n = 116). 68.4% of readings fell within the accepted 0.5°C difference in temperature recording method.In line with previously reported TMT to RT comparison studies in dogs, this study found that TMT measured consistently lower than RT. Using a correction factor of 0.4°C minimised the difference. The hypothesis that dogs would show greater differences between TMT and RT following exercise was not supported, suggesting that TMT could be used to monitor body temperature in exercising dogs where RT is not possible.

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Section: Introductionmentioning

confidence: 85%