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

Tearney, Caitlin; Guedes, Alonso; Brosnan, Robert J

doi:10.1111/evj.12443

Cited by 21 publications

(18 citation statements)

References 21 publications

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“…The use of cuff width to tail circumference ratios from 0.2 to 0.9 have been described, Cuffs that are too wide will cause underestimation and cuffs that are too small cause overestimation of NIBP . Arguably, smaller ratios could have reduced the bias in this study similarly to the report in anesthetized horses . In a recent study, a reduction in the mean difference between IBP and NIBP measurements from 9.91 to 0.39 mmHg was seen with a change in cuff width to appendage circumference ratio from 0.42 to 0.25 in horses placed in lateral recumbency using a similar oscillometric monitor.…”

Section: Discussionsupporting

confidence: 59%

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

Heliczer

Lorello

Casoni

et al. 2016

Veterinary Internal Medicne

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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 of NIBP measurements in hypo‐ and hypertensive standing horses has not been determined.Hypothesis/ObjectivesThe objective of this study was to investigate the accuracy of an oscillometric BP monitor 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) and NIBP, corrected to heart level, were measured simultaneously. In the SG hyper‐ and hypotension were induced by administration of phenylephrine (3 μg/kg/min IV for 15 minutes) and acepromazine (0.05 mg/kg IV), respectively. In the AG NIBP and IBP were recorded during regular hospital procedures.ResultsThere was a significant correlation between mean NIBP and IBP in 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 mean BP in the SG and 0.5(−22.3, 23.2) mmHg in the AG. The NIBP device was capable of identifying the increase and decrease in BP in all horses, but in the SG significant correlation between NIBP and IBP was only detected for the normotensive phase.Conclusion and Clinical ImportanceWhile the evaluated oscillometric BP device allowed estimation of BP and adequately differentiated marked trends, the accuracy and precision were low in standing horses.

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Section: Discussionsupporting

confidence: 59%

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

Heliczer

Lorello

Casoni

et al. 2016

Veterinary Internal Medicne

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“…The significantly increased PP values in Warmblood horses with AR may aid clinicians in the field when confirming AR if echocardiography is unavailable, when determining whether a horse with AR should be referred for further evaluation or when assessing whether the disease has progressed in severity. Invasive blood pressure monitoring is uncommonly performed in field practice, but NIBP monitoring presents a tool that could be implemented easily in the field setting …”

Section: Discussionsupporting

confidence: 87%

Diagnostic value of noninvasive pulse pressure measurements in Warmblood horses with aortic regurgitation

Boegli

Schwarzwald

Mitchell

2019

Veterinary Internal Medicne

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Background Noninvasive blood pressures (NIBP) and pulse pressures (PP) have not been published in horses with aortic and mitral regurgitation (AR or MR). Objectives To investigate NIBP and PP in healthy Warmblood horses and horses with AR and MR and propose PP cutoffs to identify and stage AR severity. Animals Seventy‐three Warmblood horses (healthy, 10; AR, 31; MR, 32). Methods Retrospective study. All horses had NIBP and an echocardiogram recorded. Cases were categorized based on severity of regurgitation. Pulse pressures were compared among healthy, MR, and AR groups and among AR severity groups. Cutoffs were determined by receiver operating characteristic curve analyses. Results Horses with AR had higher PP than horses with MR (mean difference [95% confidence interval (CI)], +17 [9‐26] mm Hg, P < .001) and controls (+17 [5‐30] mm Hg; P =.004). Horses with severe AR had higher PP compared those with mild (+38 [20‐54] mm Hg; P < 0.001) and moderate AR (+33 [18‐47] mm Hg; P < .001). The PP cutoffs to distinguish AR from MR and controls were 38 mm Hg (sensitivity [Sn], 100%; specificity [Sp], 19%) for maximal Sn and 61 mm Hg (Sn, 43%; Sp, 100%) for maximal Sp. The PP cutoffs to distinguish severe AR from mild and moderate AR were 57 mm Hg (Sn, 100%; Sp, 70%) for maximal Sn and 77 mm Hg (Sn, 75%; Sp, 100%) for maximal Sp. Conclusions and Clinical Importance Horses with AR have increased PP. Noninvasive PP measurements interpreted with provided cutoffs may aid clinicians in diagnosing and staging severity of AR in horses.

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“…Blood pressure NIBP was measured using a noninvasive, oscillometric blood pressure monitor (Cardell 9401) f with an average cuff width-to-tail circumference ratio according to the manufacturers guidelines [10]. For each horse, 10 consecutive blood pressure measurements (mean arterial pressure) were determined to calculate a mean value for each study period.…”

Section: Echocardiographymentioning

confidence: 99%

Pharmacokinetics and electrophysiological effects of sotalol hydrochloride in horses

Broux

Clercq

Decloedt

et al. 2017

Equine Veterinary Journal

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

Cited by 21 publications

References 21 publications

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

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

Diagnostic value of noninvasive pulse pressure measurements in Warmblood horses with aortic regurgitation

Pharmacokinetics and electrophysiological effects of sotalol hydrochloride in horses

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