Key result
Echocardiographic indices e' and E/e' showed limitations in estimating left ventricular relaxation and filling pressure, as E/e' did not significantly correlate with mean diastolic pressure (r=0.27, p=0.053).
Why the study?
Do echocardiographic indexes (e' and E/e') accurately estimate left ventricular relaxation and filling pressure compared to invasive catheter measurements in patients with organic heart disease?
Cross-Sectional (n=52)
Yes
Do echocardiographic indexes (e' and E/e') accurately estimate left ventricular relaxation and filling pressure compared to invasive catheter measurements in patients with organic heart disease?
Effect estimate: r=0.27
p-value: p=0.053
This multicenter study suggests that the commonly used echocardiographic indexes e' and E/e' have significant limitations in accurately estimating left ventricular relaxation and filling pressure in patients with organic heart disease.
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Yamada et al. (2012) conducted a cross-sectional in Various organic heart diseases (n=52). Echocardiographic indices (e' and E/e') vs. Invasive left ventricular pressure measurements (τ and LVMDP) was evaluated on Correlation between E/e' and left ventricular mean diastolic pressure (LVMDP) (r=0.27, p=0.053). Echocardiographic indices e' and E/e' showed limitations in estimating left ventricular relaxation and filling pressure, as E/e' did not significantly correlate with mean diastolic pressure (r=0.27, p=0.053).
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