Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos)

Monitoring arterial blood pressure (BP), represents a more accurate evaluation of hemodynamics than heart rate alone and is essential for preventing and treating intra- and post-operative complications in wildlife chemical immobilization.The objectives of the study were to test the correlation betwe...

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Main Authors: Jacopo Morelli, Angela Briganti, Boris Fuchs, Ðuro Huber, Alina L. Evans, Slaven Reljić, Jon M. Arnemo
Format: Article
Language:English
Published: Elsevier 2020-06-01
Series:Veterinary and Animal Science
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2451943X20300077
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author Jacopo Morelli
Angela Briganti
Boris Fuchs
Ðuro Huber
Alina L. Evans
Slaven Reljić
Jon M. Arnemo
author_facet Jacopo Morelli
Angela Briganti
Boris Fuchs
Ðuro Huber
Alina L. Evans
Slaven Reljić
Jon M. Arnemo
author_sort Jacopo Morelli
collection DOAJ
description Monitoring arterial blood pressure (BP), represents a more accurate evaluation of hemodynamics than heart rate alone and is essential for preventing and treating intra- and post-operative complications in wildlife chemical immobilization.The objectives of the study were to test the correlation between standard oscillometry and Korotkoff's technique in anesthetized free-ranging brown bears in Croatia and Scandinavia and to assess the blood pressure in both locations.Five bears were snared and darted with xylazine and ketamine in Croatia, and 20 bears were darted from a helicopter with medetomidine and tiletamine-zolazepam in Scandinavia. Blood pressure was simultaneously measured with both techniques every 5 minutes. Correlation between techniques, trends of BP variation, and the factors of the capture which likely influenced BP were assessed.Successful measurements of BP were achieved in 93% of all attempts with the Korotkoff's technique but in only 29% of all attempts with oscillometry. The latter method mostly provided lower values of BP compared to Korotkoff's technique in yearlings. Most bears showed a decreasing trend in systolic and mean BP over time, consistent between the two techniques. All bears were hypertensive: the auscultatory technique detected moderate to severe systolic hypertension in 25% and 84% of bears in Croatia and in Scandinavia, respectively, with significantly higher BP in subadults and adults compared to yearlings. Only Korotkoff's method resulted in a reliable and effective tool for BP assessment in brown bears. The anesthetic protocols used in the present study in association with the capture methods produced hypertension in all animals.
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spelling doaj.art-6008ed5aded84ad6bfd82262ef2d979b2022-12-22T02:23:29ZengElsevierVeterinary and Animal Science2451-943X2020-06-019100094Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos)Jacopo Morelli0Angela Briganti1Boris Fuchs2Ðuro Huber3Alina L. Evans4Slaven Reljić5Jon M. Arnemo6Department of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, Anne Evenstadvegen 80, 2480 Koppang, Norway; Corresponding author.Department of Veterinary Sciences University of Pisa, Via Livornese, 56122 San Piero A Grado, ItalyDepartment of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, Anne Evenstadvegen 80, 2480 Koppang, NorwayDepartment of Biology, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova ul. 55, 10000 Zagreb, CroatiaDepartment of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, Anne Evenstadvegen 80, 2480 Koppang, NorwayDepartment of Biology, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova ul. 55, 10000 Zagreb, CroatiaDepartment of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, Anne Evenstadvegen 80, 2480 Koppang, Norway; Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences, Skogsmarksgränd 17, 901 83 Umeå, SwedenMonitoring arterial blood pressure (BP), represents a more accurate evaluation of hemodynamics than heart rate alone and is essential for preventing and treating intra- and post-operative complications in wildlife chemical immobilization.The objectives of the study were to test the correlation between standard oscillometry and Korotkoff's technique in anesthetized free-ranging brown bears in Croatia and Scandinavia and to assess the blood pressure in both locations.Five bears were snared and darted with xylazine and ketamine in Croatia, and 20 bears were darted from a helicopter with medetomidine and tiletamine-zolazepam in Scandinavia. Blood pressure was simultaneously measured with both techniques every 5 minutes. Correlation between techniques, trends of BP variation, and the factors of the capture which likely influenced BP were assessed.Successful measurements of BP were achieved in 93% of all attempts with the Korotkoff's technique but in only 29% of all attempts with oscillometry. The latter method mostly provided lower values of BP compared to Korotkoff's technique in yearlings. Most bears showed a decreasing trend in systolic and mean BP over time, consistent between the two techniques. All bears were hypertensive: the auscultatory technique detected moderate to severe systolic hypertension in 25% and 84% of bears in Croatia and in Scandinavia, respectively, with significantly higher BP in subadults and adults compared to yearlings. Only Korotkoff's method resulted in a reliable and effective tool for BP assessment in brown bears. The anesthetic protocols used in the present study in association with the capture methods produced hypertension in all animals.http://www.sciencedirect.com/science/article/pii/S2451943X20300077Brown bearBlood pressureKorotkoffOscillometryHypertensionSphygmomanometer
spellingShingle Jacopo Morelli
Angela Briganti
Boris Fuchs
Ðuro Huber
Alina L. Evans
Slaven Reljić
Jon M. Arnemo
Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos)
Veterinary and Animal Science
Brown bear
Blood pressure
Korotkoff
Oscillometry
Hypertension
Sphygmomanometer
title Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos)
title_full Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos)
title_fullStr Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos)
title_full_unstemmed Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos)
title_short Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos)
title_sort comparison of two non invasive arterial blood pressure monitoring techniques in brown bears ursus arctos
topic Brown bear
Blood pressure
Korotkoff
Oscillometry
Hypertension
Sphygmomanometer
url http://www.sciencedirect.com/science/article/pii/S2451943X20300077
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