Interchangeability of cardiac output measurements between non-invasive photoplethysmography and bolus thermodilution: A systematic review and individual patient data meta-analysis

Fischer, Marc-Olivier; Joosten, Alexandre; Desebbe, Olivier; Boutros, Mariam; Debroczi, Stéphane; Broch, Ole Jacob; Malbrain, Manu L N G; Ameloot, Koen; Hofer, Christoph K.; Bubenek-Turconi, Şerban-Ion; Monnet, Xavier; Lorne, Emmanuel

doi:10.1016/j.accpm.2019.05.007

Cited by 17 publications

(8 citation statements)

References 35 publications

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“…As none of our volunteers had peripheral vasoconstriction, the volume clamp method can provide reliable estimates of changing stroke volume [ 31 ]. While we have shown that changing SV, measured by volume clamp, is also tracked by Doppler of the descending aorta and bioreactance technologies [ 28 ], volume clamp is an indirect measure and may not be valid in surgical patients and the critically ill as compared to thermodilution [ 39 , 40 ]. The advantages of the volume clamp method are that it is non-invasive and non-operator dependent.…”

Section: Discussionmentioning

confidence: 99%

Diagnostic characteristics of 11 formulae for calculating corrected flow time as measured by a wearable Doppler patch

Kenny

MacKenzie

Eibl

et al. 2020

ICMx

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Background Change of the corrected flow time (Ftc) is a surrogate for tracking stroke volume (SV) in the intensive care unit. Multiple Ftc equations have been proposed; many have not had their diagnostic characteristics for detecting SV change reported. Further, little is known about the inherent Ftc variability induced by the respiratory cycle. Materials and methods Using a wearable Doppler ultrasound patch, we studied the clinical performance of 11 Ftc equations to detect a 10% change in SV measured by non-invasive pulse contour analysis; 26 healthy volunteers performed a standardized cardiac preload modifying maneuver. Results One hundred changes in cardiac preload and 3890 carotid beats were analyzed. Most of the 11 Ftc equations studied had similar diagnostic attributes. Wodeys’ and Chambers’ formulae had identical results; a 2% change in Ftc detected a 10% change in SV with a sensitivity and specificity of 96% and 93%, respectively. Similarly, a 3% change in Ftc calculated by Bazett’s formula displayed a sensitivity and specificity of 91% and 93%. FtcWodey had 100% concordance and an R2 of 0.75 with change in SV; these values were 99%, 0.76 and 98%, 0.71 for FtcChambers and FtcBazetts, respectively. As an exploratory analysis, we studied 3335 carotid beats for the dispersion of Ftc during quiet breathing using the equations of Wodey and Bazett. The coefficient of variation of Ftc during quiet breathing for these formulae were 0.06 and 0.07, respectively. Conclusions Most of the 11 different equations used to calculate carotid artery Ftc from a wearable Doppler ultrasound patch had similar thresholds and abilities to detect SV change in healthy volunteers. Variation in Ftc induced by the respiratory cycle is important; measuring a clinically significant change in Ftc with statistical confidence requires a large sample of beats.

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Section: Discussionmentioning

confidence: 99%

Diagnostic characteristics of 11 formulae for calculating corrected flow time as measured by a wearable Doppler patch

Kenny

MacKenzie

Eibl

et al. 2020

ICMx

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“…A more recent individual patient data meta-analysis on the use of finger-cuff technology to determine cardiac output using an original statistical approach confirms those previous results, and highlights that trending ability is not acceptable. Furthermore, the accuracy and trending ability could be impacted by the device, the use of norepinephrine, or a low mean arterial pressure, rendering the technique nonsuitable for hemodynamically unstable patients [32]. Concerning aplanation tonometry systems, validation data have shown a good trending ability but are scarce in critically-ill patients and have to be confirmed [33].…”

Section: Non-invasive Pulse Wave Analysismentioning

confidence: 99%

Advantages and limitations of noninvasive devices for cardiac output monitoring: a literature review

Ruste

Jacquet-Lagrèze

2023

Current Opinion in Critical Care

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Purpose of reviewIndividualized hemodynamic optimization often requires cardiac output monitoring, mostly for goal-directed therapy in the operating room and fluid responsiveness assessment in the intensive care unit. Different technologies for noninvasive cardiac output determination have become available over the recent years. It is therefore crucial for care providers to be made aware of the advantages and limitations of those different devices for an appropriate use at the bedside.Recent findingsNowadays, different noninvasive technologies exist, each with their advantages and limitations, but none are considered interchangeable with bolus thermodilution. Different clinical studies however, emphasize that the trending ability of such devices allows to guide decisions from care providers, and that their use may be associated with improved prognosis, especially in the operating room. Recent studies have also reported their potential use for hemodynamic optimization in specific populations.SummaryNoninvasive cardiac output monitoring may have a clinical impact on patient outcomes. Further studies are required to evaluate their clinical relevance, notably in the intensive care unit. Noninvasive monitoring opens up the possibility for hemodynamic optimization in specific or low-risk populations, the benefit of which remains to be assessed.

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“…Usually, pulse analysis is obtained by the arterial line. However, other methods such as volume-clamp photoplethysmography [ 63 ] can also be used, but with lower reliability [ 64 ]. Because systemic vascular resistance is relatively constant during a few cycles of respiration, changes in SV are directly reflected in arterial pulse pressure changes [ 65 ].…”

Section: Dynamic Measurements Based On Heart-lung Interactionmentioning

confidence: 99%

Methods of assessing fluid responsiveness in septic shock patients: a narrative review

Weigl¹,

Adamski²,

Onichimowski³

et al. 2022

ait

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Septic shock, similar to other types of circulatory shock, is characterised by peripheral hypoperfusion and, consequently, inadequate tissue oxygen deli very. It is commonly believed that intravenous fluid infusion improves organ perfusion and reverses cel lular dysoxia. This belief might be valid in the early phase of septic shock, and some earlier studies [1] and international recommendations (Surviving Sepsis Campaign) [2] support this view. The physio logical rationale behind fluid bolus administration is that it causes intravascular volume expansion. According to the FrankStarling principle, increased left ventricular enddiastolic volume (i.e., preload) increases stroke volume (SV), resulting in improved organ perfusion. This mechanism works until the optimal preload is achieved. However, the patho physiology of septic shock is complex and compris es both distributive and cardiogenic components. At the peripheral level, the inflammatory process in sepsis damages the endothelial glycocalyx [3] and

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Interchangeability of cardiac output measurements between non-invasive photoplethysmography and bolus thermodilution: A systematic review and individual patient data meta-analysis

Cited by 17 publications

References 35 publications

Diagnostic characteristics of 11 formulae for calculating corrected flow time as measured by a wearable Doppler patch

Diagnostic characteristics of 11 formulae for calculating corrected flow time as measured by a wearable Doppler patch

Advantages and limitations of noninvasive devices for cardiac output monitoring: a literature review

Methods of assessing fluid responsiveness in septic shock patients: a narrative review

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