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BackgroundThe long‐term prognostic importance of left ventricular (LV) dyssynchrony in patients with systolic heart failure is not known. We investigated this question in 109 consecutive patients with systolic heart failure with an LV ejection fraction (EF) ≤35% and QRS duration <130 ms.
MethodsThe cohort is a prospective series of 109 patients with EF ≤35% and QRS duration <130 ms who did...
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