Key result
A simplified valve formula showed excellent correlation with the original Gorlin formula for calculating valve area in patients with aortic (r=0.96, p<0.001) and mitral (r=0.94, p<0.001) stenosis.
Why the study?
Does a simplified valve formula accurately correlate with the original Gorlin formula for calculating stenotic cardiac valve areas in patients with aortic or mitral stenosis?
Population
100 consecutive patients with aortic or mitral stenosis of varying severity
Comparison
Simplified valve formula vs Original Gorlin formula
Design
Cohort
Authors
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May simplify valve area calculations; leaves open prospective outcome validation before practice adoption.
Observational (n=100)
Does a simplified valve formula accurately correlate with the original Gorlin formula for calculating stenotic cardiac valve areas in patients with aortic or mitral stenosis?
Effect estimate: r = 0.96 (aortic), r = 0.94 (mitral)
p-value: p=<0.001
A simplified valve formula using cardiac output divided by the square root of pressure differences provides an accurate and easy-to-memorize alternative to the Gorlin formula for calculating stenotic valve areas.
Hakki et al. (1981) conducted an observational in Aortic or mitral stenosis (n=100). Simplified valve formula vs. Original Gorlin formula was evaluated on Correlation of calculated valve area (r = 0.96 (aortic), r = 0.94 (mitral), p=<0.001). A simplified valve formula showed excellent correlation with the original Gorlin formula for calculating valve area in patients with aortic (r=0.96, p<0.001) and mitral (r=0.94, p<0.001) stenosis.
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