Accuracy and Precision of Noninvasive Blood Pressure in Normo‐, Hyper‐, and Hypotensive Standing and Anesthetized Adult Horses

Journal of Veterinary Internal Medicine - Tập 30 Số 3 - Trang 866-872 - 2016
Natalie Heliczer1, Olivia Lorello1, Daniela Casoni2, Cristobal Navas de Solís1
1Swiss Institute of Equine Medicine, Department of Veterinary Clinical Science, School of Veterinary Medicine, Vetsuisse Faculty, University of Bern and Agroscope, Bern, Switzerland
2Anaesthesia Division, Vetsuisse Faculty, University of Bern and Agroscope, Bern, Switzerland

Tóm tắt

BackgroundBlood pressure is relevant to the diagnosis and management of many medical, cardiovascular and critical diseases. The accuracy of many commonly used noninvasive blood pressure (NIBP) monitors and the accuracy ofNIBPmeasurements in hypo‐ and hypertensive standing horses has not been determined.Hypothesis/ObjectivesThe objective of this study was to investigate the accuracy of an oscillometricBPmonitor in standing horses before and during pharmacologically induced hyper‐ and hypotension and to compare results in standing and anesthetized horses.AnimalsEight standing mares from a research herd (SG) and eight anesthetized horses from a hospital population (AG).MethodsProspective experimental and observational studies. Invasive blood pressure (IBP) andNIBP, corrected to heart level, were measured simultaneously. In theSGhyper‐ and hypotension were induced by administration of phenylephrine (3 μg/kg/minIVfor 15 minutes) and acepromazine (0.05 mg/kgIV), respectively. In theAG NIBPandIBPwere recorded during regular hospital procedures.ResultsThere was a significant correlation between meanNIBPandIBPin standing (R= 0.88,P< .001) and anesthetized horses (R= 0.81,P< .001). The mean bias (lower, upper limit of agreement) was 16.4(−16.1, 48.9) mmHg for meanBPin theSGand 0.5(−22.3, 23.2) mmHg in theAG. TheNIBPdevice was capable of identifying the increase and decrease inBPin all horses, but in theSGsignificant correlation betweenNIBPandIBPwas only detected for the normotensive phase.Conclusion and Clinical ImportanceWhile the evaluated oscillometricBPdevice allowed estimation ofBPand adequately differentiated marked trends, the accuracy and precision were low in standing horses.

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Journal of Veterinary Internal Medicine

Tập 30 Số 3

866-872

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