Key result
Speckle tracking derived E/E'(SR-ST) correlated significantly with PCWP (r=0.56, P<0.001) and identified elevated PCWP with higher diagnostic accuracy (AUC 0.89) than traditional tissue Doppler.
Why the study?
Does speckle tracking global strain rate E/E' predict LV filling pressure more accurately than traditional tissue Doppler E/E' in ICU patients with decompensated heart failure?
Population
56 ICU patients with decompensated heart failure and 32 age-matched healthy controls.
Comparison
Speckle tracking derived E/E' and early… vs Traditional tissue Doppler E/E'(VEL-TD)
Design
Cross-sectional
Authors
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May support noninvasive PCWP estimation in decompensated HF; leaves open prospective ICU validation before practice change.
Cross-Sectional (n=88)
Does speckle tracking global strain rate E/E' predict LV filling pressure more accurately than traditional tissue Doppler E/E' in ICU patients with decompensated heart failure?
Effect estimate: r = 0.56
p-value: p=<0.001
Speckle tracking-derived global strain rate E/E' provides a more accurate noninvasive estimation of left ventricular filling pressures than traditional tissue Doppler in patients with decompensated heart failure.
Kimura et al. (2011) conducted a cross-sectional in Decompensated heart failure (n=88). Speckle tracking derived E/E'(SR-ST) vs. Traditional tissue Doppler E/E'(VEL-TD) was evaluated on Correlation with PCWP and diagnostic accuracy for identifying elevated PCWP (r = 0.56, p=<0.001). Speckle tracking derived E/E'(SR-ST) correlated significantly with PCWP (r=0.56, P<0.001) and identified elevated PCWP with higher diagnostic accuracy (AUC 0.89) than traditional tissue Doppler.
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