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. 2020 Jun 10;9(12):e015009. doi: 10.1161/JAHA.119.015009

Figure 2. Longitudinal changes in ejection fraction according to heart failure phenotypes and baseline ejection fraction.

Figure 2

A, In patients with heart failure with improved ejection fraction (HFiEF), the left ventricular ejection fraction (LVEF) improved to >50% in mildly (LVEF: 30–40%), moderately (LVEF: 20–30%), and severely (LVEF ≤20%) depressed LVEF; whereas the change in LVEF was minimal among patients with persistent heart failure with reduced ejection fraction (HFrEF). B, In patients with heart failure with declined ejection fraction (HFdEF), the LVEF decreased to <35% in all 3 groups (LVEF: 40–50%, 50–60%, or >60%); whereas the change in LVEF was minimal among patients with persistent heart failure with preserved ejection fraction (HFpEF).