Key result
Speckle tracking echocardiography-determined longitudinal strain in the inferolateral segments strongly correlated with functional capacity as measured by the DASI score (r = -0.72, P < 0.001).
Why the study?
Do speckle tracking echocardiography-determined measures of global and regional strain correlate better with functional capacity than traditional ejection fraction in patients with and without preserved ejection fraction?
Cross-Sectional (n=68)
No
Do speckle tracking echocardiography-determined measures of global and regional strain correlate better with functional capacity than traditional ejection fraction in patients with and without preserved ejection fraction?
Effect estimate: r = -0.72
p-value: p=<0.001
Speckle tracking echocardiography-derived longitudinal strain correlates strongly with functional capacity and outperforms traditional ejection fraction and diastolic parameters, particularly in patients with preserved ejection fraction.
No takes yet. Share an insight, caveat, or question.
May support regional strain for functional assessment in preserved EF; leaves open superiority over ejection fraction in prospective studies.
Petersen et al. (2013) conducted a cross-sectional in Heart failure with and without preserved ejection fraction (n=68). Speckle tracking echocardiography-determined longitudinal strain vs. Left ventricular ejection fraction was evaluated on Correlation of longitudinal strain in the inferolateral segments with Duke Activity Status Index (DASI) score (r = -0.72, p=<0.001). Speckle tracking echocardiography-determined longitudinal strain in the inferolateral segments strongly correlated with functional capacity as measured by the DASI score (r = -0.72, P < 0.001).
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