Equivalence between invasive and oscillometric blood pressures at different anatomic locations in healthy normotensive anaesthetised horses

Equine Veterinary Journal
C C TearneyR J Brosnan

Abstract

Accurate blood pressure measurement is essential for effective clinical assessment and appropriate interventions in anaesthetised horses. Information on the accuracy of oscillometry for blood pressure measurement on the appendages of mature horses is limited. To assess equivalence between invasive and oscillometric blood pressures at different anatomic locations in horses. Prospective experimental study using 6 healthy mature horses. Blood pressure was measured invasively in the right transverse facial artery and noninvasively by oscillometry in nondependent limbs and tail of laterally recumbent sevoflurane- or desflurane-anaesthetised horses. Cuff widths of 5-12 cm were tested on the tail, metatarsus, metacarpus and distal radius/ulna. Equivalence between mean arterial pressure (MAP) oscillometric and MAP invasive was assessed using a linear mixed effects model with a significance level of P≤0.05. Twenty paired measurements were obtained for each cuff size in each of the locations, totalling 340 measurements. There was only one location (tail) and one cuff width (6 cm; cuff width-to-tail circumference ratio of 0.25) that resulted in equivalence between MAP measured with the oscillometric and the invasive methods (P = 0.8). All...Continue Reading

References

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Aug 2, 2014·Veterinary Anaesthesia and Analgesia·Lea-Annina HatzRegula Bettschart-Wolfensberger

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Citations

Oct 13, 2017·Equine Veterinary Journal·B BrouxG van Loon
Apr 3, 2019·Journal of Veterinary Internal Medicine·Julia BoegliKatharyn J Mitchell
Sep 19, 2017·Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians·Mads F BertelsenTobias Wang

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