Key result
The echocardiogram E-F slope showed poor correlation (r = 0.51) with cardiac catheterization-derived mitral valve area, making it an unreliable index of mitral stenosis severity.
Why the study?
Does the echocardiographic E-F slope accurately correlate with mitral valve area calculated by cardiac catheterization in patients with mitral stenosis?
Population
61 patients with mitral stenosis without other significant lesions
Comparison
Echocardiography vs Cardiac catheterization
Design
Cross-sectional
Authors
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E-F slope should not guide mitral stenosis severity assessment; leaves open the need for validated noninvasive alternatives to catheterization.
Observational (n=61)
Does the echocardiographic E-F slope accurately correlate with mitral valve area calculated by cardiac catheterization in patients with mitral stenosis?
Effect estimate: r = 0.51
While echocardiography is reliable for diagnosing mitral stenosis, the E-F slope is an unreliable index of lesion severity compared to cardiac catheterization.
Cope et al. (1975) conducted an observational in Mitral stenosis (n=61). Echocardiogram vs. Cardiac catheterization was evaluated on Correlation between echocardiographic E-F slope and calculated mitral valve area (r = 0.51). The echocardiogram E-F slope showed poor correlation (r = 0.51) with cardiac catheterization-derived mitral valve area, making it an unreliable index of mitral stenosis severity.
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