Key result
Updated Doppler echocardiographic measurement of the aortic regurgitant fraction closely correlated with invasive determinations (r = 0.90), with a standard error of 8.8%.
Why the study?
Does an updated Doppler echocardiographic measurement accurately estimate the aortic regurgitant fraction compared to invasive determination in patients with aortic regurgitation?
Population
130 patients with aortic regurgitation
Comparison
Updated Doppler echocardiographic measurement of… vs Invasive determination of the regurgitant fraction
Design
Cross-sectional
Authors
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Supports noninvasive aortic regurgitant fraction estimation; leaves open prospective validation against clinical outcomes.
Observational (n=130)
Does an updated Doppler echocardiographic measurement accurately estimate the aortic regurgitant fraction compared to invasive determination in patients with aortic regurgitation?
Effect estimate: r = 0.90
Updated Doppler echocardiography of the aortic arch provides a highly accurate, noninvasive estimation of the aortic regurgitant fraction compared to invasive measurements.
Touche et al. (1985) conducted an observational in Aortic regurgitation (n=130). Updated Doppler echocardiographic measurement of the aortic regurgitant fraction vs. Invasive determinations of the regurgitant fraction was evaluated on Correlation between simultaneous noninvasive and invasive determinations of the regurgitant fraction (r = 0.90). Updated Doppler echocardiographic measurement of the aortic regurgitant fraction closely correlated with invasive determinations (r = 0.90), with a standard error of 8.8%.
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