Comparison of direct and Doppler arterial blood pressure measurements in rabbits during isoflurane anaesthesia

Veterinary Anaesthesia and Analgesia
Louise HarveyPamela J Murison

Abstract

To measure the level of agreement between Doppler measured (DOP) arterial blood pressure (ABP) in the forelimb and directly measured (DIR) auricular systolic ABP (SAP) and mean ABP (MAP) in isoflurane-anaesthetized rabbits. Prospective clinical study. Data were analysed from 17 of 24 healthy rabbits, weighing 1.3-2.8 kg. Rabbits were anaesthetized for neutering using a standardized protocol. A 26G catheter placed in an auricular artery was connected via heparinised saline filled non-compliant tubing (regularly flushed) to a calibrated pressure transducer (zeroed level with the thoracic inlet) to obtain DIR ABP. A cuff was placed proximal to the carpus (approximately level with the thoracic inlet) and a Doppler transducer sited over the dorsal carpal branch of the radial artery to obtain DOP ABP. Simultaneous DIR and DOP ABP recordings were made every 5-10 minutes during anaesthesia. Agreement was assessed as described by Bland JM & Altman (2007). Mean ± SD cuff width: limb circumference ratio was 0.50 ± 0.04. Mean between-method differences ± SD, DIR SAP- DOP and DIR MAP- DOP, were +1 ± 8 and -13 ± 8 mmHg respectively. The 95% limits of agreement between DIR SAP and DOP and between DIR MAP and DOP were -14 to +17 and -28 to +2 ...Continue Reading

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Citations

Mar 19, 2014·Journal of Medical Primatology·Kristen R YeungAngela Makris
Nov 15, 2013·Veterinary Anaesthesia and Analgesia·Turi K AarnesRichard M Bednarski
Mar 1, 2014·Veterinary Anaesthesia and Analgesia·Sonja Hartnack
May 1, 2016·The Veterinary Clinics of North America. Exotic Animal Practice·Minh HuynhCharly Pignon
Feb 28, 2018·BMC Veterinary Research·Luca BelliniAntonio Mollo
Sep 14, 2021·Journal of the American Veterinary Medical Association·Sarah OzawaCatherine Gunther-Harrington
Nov 3, 2021·American Journal of Veterinary Research·Christopher K SmithAndrew C Cushing

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