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Doppler blood pressure measurement in pigs during anaesthesia

Musk, G.C., Costa, R.S. and Tuke, J. (2014) Doppler blood pressure measurement in pigs during anaesthesia. Research in Veterinary Science, 97 (1). pp. 129-131.

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To determine the accuracy of Doppler blood pressure measurement in anaesthetised pigs eight large white pigs (Sus scrofa) were anaesthetised with zolazepam and tiletamine as Zoletil 100 (4 mg/kg) and xylazine (2 mg/kg) by intramuscular injection followed by isoflurane in 100% oxygen. Blood pressure measurements were recorded using a Doppler probe on the radial artery and a catheter in the femoral artery connected to a transducer. The sample mean of the Doppler measurements were compared with the sample mean of the invasive systolic arterial blood pressure while accounting for the heart rate, end-tidal CO2 and temperature. The predicted error of the Doppler was greatest when pigs were hypotensive and normothermic: 11 mmHg (CI: 6-15). Doppler measurements should be interpreted with caution in anaesthetised pigs that are hypotensive and normothermic.

Publication Type: Journal Article
Murdoch Affiliation: School of Veterinary and Life Sciences
Publisher: Elsevier Ltd.
Copyright: © 2014 Elsevier Ltd.
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