In this study, the outcome of severe LG/LF aortic stenosis with preserved EF was similar to that of mild-to-moderate aortic stenosis and was not favorably influenced by aortic surgery. Further research is needed to better understand the natural history and the progression of LG/LF aortic stenosis.
The identification of septal deformation patterns provides important prognostic information in CRT candidates in addition to ordinary clinical, electrocardiographic, and echocardiographic predictors of outcome in HF patients. This parameter may be particularly useful in patients with intermediate QRS duration in whom the benefit of CRT remains uncertain.
Upgrades of speckle tracking software may be associated with significant changes in GLS values, which could affect intersoftware and intervendor consistency. This finding has important clinical implications for the longitudinal follow-up of patients with speckle tracking echocardiography.
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