March 1, 1978Annals of Internal Medicine
Determination of Mitral Valve Area by Cross-Sectional Echocardiography
Why the study?
Does cross-sectional echocardiography accurately measure mitral valve area compared to invasive catheterization in patients with mitral stenosis?
Population
37 patients with mitral stenosis (27 with pure mitral stenosis, 10 with associated mitral regurgitation)
Comparison
Cross-sectional echocardiography for measurement… vs Catheterization and direct pathologic measurements
Design
Cross-sectional
Authors
Discussion
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Member takes
Implication
Supports echocardiography for non-invasive mitral valve area assessment in mitral stenosis; leaves open prospective outcome validation before changing practice.
Structured PICO
Does cross-sectional echocardiography accurately measure mitral valve area compared to invasive catheterization in patients with mitral stenosis?
P
Population
37 patients with mitral stenosis (27 with pure mitral stenosis, 10 with associated mitral regurgitation)
I
Intervention
Cross-sectional echocardiography for measurement of mitral valve area
C
Comparator
Catheterization (Gorlin formula using pressure gradient and Fick cardiac output or cineangiographic stroke output) and direct pathologic measurements
O
Outcome
Correlation of mitral valve area measured by cross-sectional echocardiography with catheterization and pathologic measurementssurrogate
Cross-sectional echocardiography provides a reliable, non-invasive measurement of mitral valve area that correlates highly with invasive catheterization in patients with mitral stenosis.
Cite This Study
Wann et al. (1978) studied this question.