Evaluation of agreement and trending ability between transpulmonary thermodilution and calibrated pulse contour and pulse power cardiac output monitoring methods against pulmonary artery thermodilution in anesthetized dogs

Kutter, Annette P N; Bettschart‐Wolfensberger, Regula; Romagnoli, Noemi; Bektas, Rima N

doi:10.1111/vec.12439

Cited by 9 publications

(8 citation statements)

References 36 publications

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“…48 In addition, there was no relationship in a population of dogs between the presence of thrombosis identified on necropsy and premortem TEG findings. 49 Other studies examining dogs with underlying diseases predisposed to hypercoagulability also found inconsistencies with TEG tracings citing low packed cell volume, application of specific activator, and insufficient sample sizes as possible explanations. [50][51][52] Similarly, the dog in the current study that had an aortic thrombus visualized on ultrasonography had shortened PT value but did not have hypercoagulable changes on TEG.…”

Section: Discussionmentioning

confidence: 99%

Retrospective evaluation of shortened prothrombin time or activated partial thromboplastin time for the diagnosis of hypercoagulability in dogs: 25 cases (2006–2011)

Song

Drobatz

Silverstein

2016

J Vet Emergen Crit Care

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Section: Discussionmentioning

confidence: 99%

Retrospective evaluation of shortened prothrombin time or activated partial thromboplastin time for the diagnosis of hypercoagulability in dogs: 25 cases (2006–2011)

Song

Drobatz

Silverstein

2016

J Vet Emergen Crit Care

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“…A recent evaluation of pulse contour methods in dogs has been published [ 8 ]. The authors evaluated PiCCO and PulseCO (both externally calibrated pulse contour methods, respectively with transpulmonary thermodilution and with pulmonary artery thermodilution), as well as transpulmonary thermodilution, all compared to pulmonary artery thermodilution.…”

Section: Discussionmentioning

confidence: 99%

“…For this reason, in the last years less invasive procedures, such as pulse contour monitors, are under evaluation in order to find new techniques that can be used for the CO evaluation. Recent veterinary studies concluded that results obtained from the evaluated pulse contour methods [ 8 – 11 ] are not reliable for the CO evaluation in dogs in the clinical setting.…”

Section: Introductionmentioning

confidence: 99%

A preliminary study evaluating cardiac output measurement using Pressure Recording Analytical Method (PRAM) in anaesthetized dogs

et al. 2018

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BackgroundHaemodynamic variations normally occur in anaesthetized animals, in relation to the animal status, administered drugs, sympathetic and parasympathetic tone, fluid therapy and surgical stimulus. The possibility to measure some cardiovascular parameters, such as cardiac output (CO), during anaesthesia would be beneficial for both the anaesthesia management and its outcome. New techniques for the monitoring of CO are aimed at finding methods which are non invasive, accurate and with good trending ability, which can be used in a clinical setting. The aim of this study was to compare the Pressure Recording Analytical Method (PRAM) with the pulmonary artery thermodilution (TD) for the measurement of cardiac output in 6 anaesthetized critically ill dogs.ResultsFifty-four pairs of CO measurements were obtained with a median (range) of 3.33 L/min (0.81–7.21) for PRAM-CO and 3.48 L/min (1.41–6.56) for TD-CO. The Bland-Altman analysis showed a mean bias of 0.17 L/min with limits of agreement (LoA) of − 0.46 to 0.81 L/min. The percentage error resulted 18.2%. The 4-quadrant plot analysis showed an acceptable concordance (93%) between the 2 methods. The polar plot showed a good trending ability with the mean angular bias of 3.9° and radial LoA ± 12.1°.ConclusionsThe PRAM resulted in good precision, acceptable concordance and good trending ability for the measure of CO in the anaesthetized dog, representing a promising alternative to thermodilution for the measurement of CO. Among all the pulse contour methods available on the market it is the only one that does not require any calibration or adjustment of the measurement. Further studies are required to verify the ability of this method to accurately measure cardiac output even during unstable hemodynamic conditions.

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“…A summary of studies in small animals evaluating the ability of CO measured by TPTD (CO TPTD ) to track changes in CO measured by the reference standard (CO PATD ) using polar plot analysis is presented in Table 3 (71)(72)(73). Based on experimental studies in dogs, where a range of CO values was obtained by increasing depth of anesthesia and inotropic (dobutamine) administration, it has been suggested that CO TPTD can be used in replacement of CO PATD because of an acceptable precision of agreement and good trending ability between these two techniques (73).…”

Section: Transpulmonary Thermodilutionmentioning

confidence: 99%

“…Based on experimental studies in dogs, where a range of CO values was obtained by increasing depth of anesthesia and inotropic (dobutamine) administration, it has been suggested that CO TPTD can be used in replacement of CO PATD because of an acceptable precision of agreement and good trending ability between these two techniques (73). Another report showed a marginal trending ability between CO TPTD and CO PATD in healthy anesthetized dogs (72). However, results were limited by the fact that the anesthetic protocol was designed for another purpose and no specific procedures were made to induce changes in CO (72).…”

Section: Transpulmonary Thermodilutionmentioning

confidence: 99%

Clinical Application of the Fluid Challenge Approach in Goal-Directed Fluid Therapy: What Can We Learn From Human Studies?

Neto

Valverde

2021

Front. Vet. Sci.

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Resuscitative fluid therapy aims to increase stroke volume (SV) and cardiac output (CO) and restore/improve tissue oxygen delivery in patients with circulatory failure. In individualized goal-directed fluid therapy (GDFT), fluids are titrated based on the assessment of responsiveness status (i.e., the ability of an individual to increase SV and CO in response to volume expansion). Fluid administration may increase venous return, SV and CO, but these effects may not be predictable in the clinical setting. The fluid challenge (FC) approach, which consists on the intravenous administration of small aliquots of fluids, over a relatively short period of time, to test if a patient has a preload reserve (i.e., the relative position on the Frank-Starling curve), has been used to guide fluid administration in critically ill humans. In responders to volume expansion (defined as individuals where SV or CO increases ≥10–15% from pre FC values), FC administration is repeated until the individual no longer presents a preload reserve (i.e., until increases in SV or CO are <10–15% from values preceding each FC) or until other signs of shock are resolved (e.g., hypotension). Even with the most recent technological developments, reliable and practical measurement of the response variable (SV or CO changes induced by a FC) has posed a challenge in GDFT. Among the methods used to evaluate fluid responsiveness in the human medical field, measurement of aortic flow velocity time integral by point-of-care echocardiography has been implemented as a surrogate of SV changes induced by a FC and seems a promising non-invasive tool to guide FC administration in animals with signs of circulatory failure. This narrative review discusses the development of GDFT based on the FC approach and the response variables used to assess fluid responsiveness status in humans and animals, aiming to open new perspectives on the application of this concept to the veterinary field.

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Evaluation of agreement and trending ability between transpulmonary thermodilution and calibrated pulse contour and pulse power cardiac output monitoring methods against pulmonary artery thermodilution in anesthetized dogs

Cited by 9 publications

References 36 publications

Retrospective evaluation of shortened prothrombin time or activated partial thromboplastin time for the diagnosis of hypercoagulability in dogs: 25 cases (2006–2011)

Retrospective evaluation of shortened prothrombin time or activated partial thromboplastin time for the diagnosis of hypercoagulability in dogs: 25 cases (2006–2011)

A preliminary study evaluating cardiac output measurement using Pressure Recording Analytical Method (PRAM) in anaesthetized dogs

Clinical Application of the Fluid Challenge Approach in Goal-Directed Fluid Therapy: What Can We Learn From Human Studies?

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