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

Arnemo, Jon and Morelli, Jacopo and Briganti, Angela and Fuchs, Boris and Huber, Duro and Reljic, Slaven and Evans, Alina L. (2020). Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos). Veterinary and Animal Science. 9 , 100094
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Abstract

Monitoring arterial blood pressure (BP), represents a more accurate evaluation of hemodynamics than heart rate alone and is essential for preventing and treating infra- and post-operative complications in wildlife chemical immobilization.The objectives of the study were to test the correlation between standard oscillometry and Korotkoffs 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 Korotkoffs technique but in only 29% of all attempts with oscillometry. The latter method mostly provided lower values of BP compared to Korotkoffs 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 Korotkoffs 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.

Authors/Creators:Arnemo, Jon and Morelli, Jacopo and Briganti, Angela and Fuchs, Boris and Huber, Duro and Reljic, Slaven and Evans, Alina L.
Title:Comparison of two non-invasive arterial blood pressure monitoring techniques in brown bears (Ursus arctos)
Series Name/Journal:Veterinary and Animal Science
Year of publishing :2020
Volume:9
Article number:100094
Number of Pages:10
Publisher:ELSEVIER
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 403 Veterinary Science > Clinical Science
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
Keywords:Brown bear, Blood pressure, Korotkoff, Oscillometry, Hypertension, Sphygmomanometer
URN:NBN:urn:nbn:se:slu:epsilon-p-109857
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109857
Additional ID:
Type of IDID
DOI10.1016/j.vas.2020.100094
Web of Science (WoS)000548318300006
ID Code:21251
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:18 Jan 2021 10:43
Metadata Last Modified:18 Jan 2021 10:51

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