Key result
Ultrasonic echography determinations of stroke volume correlated strongly with the standard Fick method (r = 0.966) in patients without valvular regurgitation.
Why the study?
Does ultrasonic echography accurately determine stroke volume and estimate valvular regurgitation compared to standard invasive methods in patients with heart disease?
Population
51 patients with heart disease undergoing cardiac catheterization
Comparison
Ultrasonic echography to calculate… vs Standard Fick method and angiocardiographic study
Design
Cross-sectional
Authors
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Ultrasonic echography may support non-invasive stroke volume assessment without regurgitation; leaves open prospective validation for regurgitation and routine use.
Observational (n=51)
Does ultrasonic echography accurately determine stroke volume and estimate valvular regurgitation compared to standard invasive methods in patients with heart disease?
Effect estimate: r = 0.966
Ultrasonic echography provides an accurate, non-invasive method for determining stroke volume and estimating the severity of valvular regurgitation, correlating well with invasive catheterization techniques.
Popp et al. (1970) conducted an observational in Heart disease (n=51). Ultrasonic echography vs. Standard Fick method and angiocardiography was evaluated on Stroke volume correlation between echographic and Fick methods (r = 0.966). Ultrasonic echography determinations of stroke volume correlated strongly with the standard Fick method (r = 0.966) in patients without valvular regurgitation.
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