Key result
Pulsed Doppler ultrasound showed a highly significant linear correlation with thermodilution for measuring cardiac output (r = 0.88, p < 0.001).
Why the study?
Does pulsed Doppler ultrasound accurately monitor cardiac output responses to changing left ventricular function compared to thermodilution in patients?
Population
12 patients undergoing pacing and drug-induced changes (dobutamine, nitrates) in left ventricular function
Comparison
Pulsed Doppler ultrasound for cardiac output… vs Thermodilution for cardiac output measurement
Design
Other
Authors
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May support noninvasive cardiac output monitoring; leaves open prospective validation during left ventricular interventions.
Observational (n=12)
Does pulsed Doppler ultrasound accurately monitor cardiac output responses to changing left ventricular function compared to thermodilution in patients?
Effect estimate: r = 0.88
p-value: p=<0.001
Pulsed Doppler ultrasound provides a useful method for monitoring directional changes in cardiac output and assessing left ventricular contractile function in response to interventions.
BOJANOWSKl et al. (1987) conducted an observational in Patients requiring cardiac output monitoring (n=12). Pulsed Doppler ultrasound vs. Thermodilution was evaluated on Correlation between cardiac output measurements by pulsed Doppler and thermodilution (r = 0.88, p=<0.001). Pulsed Doppler ultrasound showed a highly significant linear correlation with thermodilution for measuring cardiac output (r = 0.88, p < 0.001).
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