Evaluation of a novel body temperature sensor (CORE) in dogs under general anesthesia following premedication with dexmedetomidine or acepromazine: A pilot study
- 1Department of Surgical Sciences, University of Wisconsin, Madison, Wisconsin, United States of America
- 2Department of Biostatistics and Medical Informatics, University of Wisconsin, Madison, Wisconsin, United States of America
- 3WaldoPet, Waukesha, Wisconsin, United States of America
Abstract
Core body temperature monitoring in anesthetized dogs is a vital part of physiological evaluation. Depending on the procedure and patient positioning, consistent core temperature measurements can be difficult to obtain. The objective of this study was to evaluate the reliability and clinical validity of a wireless, non-invasive, superficial heat flux-based thermometric device (CORE, greenTEG AG, Rümlang, Switzerland). Three healthy beagle dogs were premedicated with either dexmedetomidine or acepromazine prior to induction with intravenous propofol and isoflurane maintenance. They were monitored every five minutes with pulse oximetry, non-invasive blood pressure, electrocardiography, and capnometry. Rectal thermometry and temperatures from the CORE sensor placed on clipped and unclipped skin over the jugular veins were measured every three minutes for up to 120 minutes following induction. Based on the correlation coefficient for repeated measures (rrm) and the Shrout-Fleiss intraclass correlation coefficient (ICC), in dogs administered acepromazine, there was good, statistically significant correlation and reliability between rectal and clipped CORE temperatures (rrm = 0.81, P < 0.0001; ICC = 0.78) and rectal and unclipped CORE temperatures (rrm = 0.79, P < 0.0001; ICC = 0.85). In dogs administered dexmedetomidine, although values were correlated (rrm = 0.30, P < 0.0001), there was poor reliability (ICC = 0.28) between rectal and clipped CORE temperatures which improved if dogs were unclipped (rrm = 0.48, P < 0.0001; ICC = 0.88). Clinically acceptable Bland-Altman agreements were found between rectal and unclipped CORE methods. These preliminary results suggest that the CORE sensor may provide an alternative method for assessing core body temperatures in unclipped, anesthetized dogs.
Related
- Evaluation of pigs’ susceptibility to summer heat waves based on continuous measurement of body temperature
- Dexmedetomidine effects on metabolic rate over 5 days in humans
- Isoflurane anesthesia CNS recovery state: ultra-slow oscillations and cellular-stress-responsive gene expression
- Natural sleep, but not propofol-induced anesthesia preserves spatial and procedural memory consolidation
- Auditory tracking magnitude, temporal alignment, and anatomical distribution during wakefulness and propofol-based anesthesia in human sEEG
BibTeX
@article{dupleix2026evaluation,
title = {{Evaluation of a novel body temperature sensor (CORE) in dogs under general anesthesia following premedication with dexmedetomidine or acepromazine: A pilot study}},
author = {Chloe R. Dupleix and Jacob P. Rastas and Qianqian Zhao and Robert Young and Rebecca A. Johnson},
journal = {PLOS One},
year = {2026},
month = oct,
doi = {10.1371/journal.pone.0360808},
url = {https://doi.org/10.1371/journal.pone.0360808},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Evaluation of a novel body temperature sensor (CORE) in dogs under general anesthesia following premedication with dexmedetomidine or acepromazine: A pilot study
AU - Chloe R. Dupleix
AU - Jacob P. Rastas
AU - Qianqian Zhao
AU - Robert Young
AU - Rebecca A. Johnson
PY - 2026
DA - 2026/10/15
JO - PLOS One
DO - 10.1371/journal.pone.0360808
UR - https://doi.org/10.1371/journal.pone.0360808
AB - Core body temperature monitoring in anesthetized dogs is a vital part of physiological evaluation. Depending on the procedure and patient positioning, consistent core temperature measurements can be difficult to obtain. The objective of this study was to evaluate the reliability and clinical validity of a wireless, non-invasive, superficial heat flux-based thermometric device (CORE, greenTEG AG, Rümlang, Switzerland). Three healthy beagle dogs were premedicated with either dexmedetomidine or acepromazine prior to induction with intravenous propofol and isoflurane maintenance. They were monitored every five minutes with pulse oximetry, non-invasive blood pressure, electrocardiography, and capnometry. Rectal thermometry and temperatures from the CORE sensor placed on clipped and unclipped skin over the jugular veins were measured every three minutes for up to 120 minutes following induction. Based on the correlation coefficient for repeated measures (rrm) and the Shrout-Fleiss intraclass correlation coefficient (ICC), in dogs administered acepromazine, there was good, statistically significant correlation and reliability between rectal and clipped CORE temperatures (rrm = 0.81, P < 0.0001; ICC = 0.78) and rectal and unclipped CORE temperatures (rrm = 0.79, P < 0.0001; ICC = 0.85). In dogs administered dexmedetomidine, although values were correlated (rrm = 0.30, P < 0.0001), there was poor reliability (ICC = 0.28) between rectal and clipped CORE temperatures which improved if dogs were unclipped (rrm = 0.48, P < 0.0001; ICC = 0.88). Clinically acceptable Bland-Altman agreements were found between rectal and unclipped CORE methods. These preliminary results suggest that the CORE sensor may provide an alternative method for assessing core body temperatures in unclipped, anesthetized dogs.
SN - 1932-6203
ER -