Measuring level of agreement between values obtained by directly measured blood pressure and ultrasonic Doppler flow detector in cats

Cunha, Andrei dos Santos; Saile, Katrin; Beaufrère, Hugues; Wolfson, Wendy; Seaton, Diana; Acierno, Mark J.

doi:10.1111/vec.12161

Cited by 27 publications

(30 citation statements)

References 25 publications

(35 reference statements)

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“…24 A more recent study has suggested poor agreement between Doppler values and direct measurements in anesthetized cats. 25 However, the median value obtained in our study was similar to values obtained in studies of healthy cats using intra-arterial radiotelemetric implants for direct assessment (125.1 AE 10.6 mmHg and 126.0 AE 4.4 mmHg). 13,14 Increasing levels of nervousness at the point of assessment of SBP (assessed at the time based upon body position, tail position, ear position, eye contact, and general demeanor) was found to be associated with increasing SBP in our population of cats.…”

Section: Discussionsupporting

confidence: 88%

“…Doppler measures have been reported to be have good correlation with direct arterial measures (although with a large negative bias) in 1 study, whereas another study reported good correlation and agreement . A more recent study has suggested poor agreement between Doppler values and direct measurements in anesthetized cats . However, the median value obtained in our study was similar to values obtained in studies of healthy cats using intra‐arterial radiotelemetric implants for direct assessment (125.1 ± 10.6 mmHg and 126.0 ± 4.4 mmHg) …”

Section: Discussionsupporting

confidence: 64%

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Blood Pressure Measurements in 780 Apparently Healthy Cats

Payne

Brodbelt

Fuentes

2016

Veterinary Internal Medicne

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BackgroundMean systolic blood pressure in apparently healthy cats has been reported as approximately 125 mmHg using direct assessment, but there is greater variability in reported values using indirect assessment. Increasing age and the white‐coat effect are associated with increased systolic blood pressure.Hypothesis/ObjectivesTo report Doppler‐derived blood pressure measurements from a large population of apparently healthy cats and to assess epidemiologic factors associated with recorded blood pressures.AnimalsA total of 780 cats in rehoming centers enrolled in a screening program for heart murmurs and cardiac disease.MethodsCats were considered healthy based on history and physical examination. Cats with known hypertension, hyperthyroidism, or clinical signs of systemic disease and pregnant or nursing queens were excluded. After an acclimatization period, systolic blood pressure was measured using the Doppler sphygmomanometry method following the recommendations of the ACVIM Consensus Statement. General linear model analysis was performed to identify factors associated with variation in systolic blood pressure.ResultsMedian (interquartile range, IQR) systolic blood pressure for the group was 120.6 (110.4–132.4) mmHg. Factors significantly associated with higher systolic blood pressure in a general linear model were increased age, increased nervousness, male sex, neutering, or history of being a stray. The model explained 29.2% of the variation in systolic blood pressure.Conclusions and Clinical ImportanceThe age, demeanor, sex, neuter status and history of being a stray should be taken into account when assessing systolic blood pressure in apparently healthy cats.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 64%

Blood Pressure Measurements in 780 Apparently Healthy Cats

Payne

Brodbelt

Fuentes

2016

Veterinary Internal Medicne

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“…In addition, the continuous sound of the pulse can be used to monitor the pulse rate. However, in anaesthetised cats, Doppler measurements have been shown to be unreliable (da Cunha and others 2014), provide readings that are closer to the MAP than the SAP (Caulkett and others 1998), or underestimate the SAP by 14 mmHg (Haberman and others 2006). …”

Section: Monitoring the Monitormentioning

confidence: 99%

Practical guide to monitoring anaesthetised small animal patients

Mathis¹

2016

In Practice

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Anaesthesia – a reversible and controlled coma-like state – is an art based on an understanding of many contributing factors: pharmacology, the patient and its varied physiological processes or disease states, the procedure being undertaken and the potential complications arising as a result of all of these. Monitoring a patient at this time can be challenging but the increasing use of multiparameter monitors reduces the incidence of morbidity and mortality in both people and animals. Understanding the data displayed on these monitors is important, but it is vital not to lose sight of the whole picture as well. This article focuses on the main parameters that are monitored when small animals undergo general anaesthesia (including the patient itself) and explains how the data acquired should be considered in relation to other information.

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“…Nevertheless, interpretation of the values should be performed with caution (da Cunha et al. ). Clinical doses of alfaxalone (2–5 mg kg −1 ) administered IV in unpremedicated cats caused mild suppressive effects on the arterial blood pressure (Muir et al.…”

Section: Discussionmentioning

confidence: 99%

“…Caulkett et al (1998) showed that the Doppler technique is an accurate predictor of the mean arterial blood pressure and correlates well with the direct arterial pressure in anaesthetized cats. Nevertheless, interpretation of the values should be performed with caution (da Cunha et al 2014). Clinical doses of alfaxalone (2-5 mg kg À1 ) administered IV in unpremedicated cats caused mild suppressive effects on the arterial blood pressure (Muir et al 2009).…”

Section: Discussionmentioning

confidence: 99%