Key result
A new formula for calculating mitral valve area showed excellent correlation (r = 0.89) with the standard Gorlin formula for valve areas of 0-1.5 cm2 in patients with mitral stenosis.
Why the study?
Does a new formula accurately measure diastolic mitral valve orifice area compared to the standard Gorlin formula in patients with mitral stenosis?
Population
52 patients with mitral stenosis who underwent cardiac catheterization
Comparison
A new formula for the measurement of diastolic… vs Standard Gorlin formula
Design
Cross-sectional
Authors
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Supports new formula for moderate-severe mitral stenosis; leaves open prospective validation before clinical adoption.
Observational (n=52)
Does a new formula accurately measure diastolic mitral valve orifice area compared to the standard Gorlin formula in patients with mitral stenosis?
Effect estimate: r = 0.89
The new formula provides an accurate estimation of mitral valve area in patients with moderate to severe mitral stenosis (≤1.5 cm2) but is inaccurate for mild stenosis.
Anthony P. Morise (1982) conducted an observational in Mitral stenosis (n=52). New formula for mitral valve area calculation vs. Standard Gorlin formula was evaluated on Correlation between the new and Gorlin formulas for valve areas of 0-1.5 cm2 (r = 0.89). A new formula for calculating mitral valve area showed excellent correlation (r = 0.89) with the standard Gorlin formula for valve areas of 0-1.5 cm2 in patients with mitral stenosis.
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