Key result
Combining 3D-SDI or radial strain with IVMD predicts CRT response with ~88% specificity.
Why the study?
Do baseline echocardiographic dyssynchrony parameters predict response to cardiac resynchronization therapy in heart failure patients?
Cohort (n=77)
Do baseline echocardiographic dyssynchrony parameters predict response to cardiac resynchronization therapy in heart failure patients?
Novel echocardiographic parameters such as 3D-SDI and speckle-tracking radial strain, particularly when combined with interventricular mechanical delay, improve the diagnostic accuracy of predicting response to cardiac resynchronization therapy.
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May enhance CRT candidate selection; leaves open prospective randomized validation before practice change.
Maffè et al. (2014) conducted a cohort in Heart failure (n=77). Echocardiographic dyssynchrony parameters was evaluated on Response to CRT (≤15% in left ventricular end-systolic volume). Echocardiographic dyssynchrony parameters, specifically combining 3D-SDI or radial strain with IVMD, predicted response to CRT with 76-80% sensitivity and 85-88% specificity.
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