Key result
The third-generation Vigileo-FloTrac device accurately tracked cardiac output changes during preload changes (96% concordance) but not during phenylephrine (23%) or ephedrine (69%) administration.
Why the study?
Does the third-generation Vigileo-FloTrac system accurately track changes in cardiac output induced by vasopressors and preload changes compared to esophageal Doppler in anesthetized patients?
Population
33 anesthetized patients
Comparison
Cardiac output monitoring using the… vs Esophageal Doppler cardiac output measurements
Design
Cohort
Authors
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Caution warranted during vasopressor use with Vigileo-FloTrac; observational data leaves open need for randomized validation.
Does the third-generation Vigileo-FloTrac system accurately track changes in cardiac output induced by vasopressors and preload changes compared to esophageal Doppler in anesthetized patients?
Mean Difference: 0.14
The third-generation Vigileo-FloTrac system accurately tracks cardiac output changes from preload variations but is inaccurate during vasopressor (phenylephrine, ephedrine) administration.
Meng et al. (2011) studied Anesthetized patients (n=33). Third-generation Vigileo-FloTrac system vs. Esophageal Doppler was evaluated on Difference between paired pulse contour and Doppler measurements of cardiac output (MD 0.14 L/min). The third-generation Vigileo-FloTrac device accurately tracked cardiac output changes during preload changes (96% concordance) but not during phenylephrine (23%) or ephedrine (69%) administration.
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