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. 2023 May;39(3):361–390. doi: 10.6515/ACS.202305_39(3).20230301A

Figure 2.

Figure 2

Proposed new classification of heart failure. HFimpEF, HF with improved ejection fraction (previous LVEF < 40% that improved by 10% in LVEF and now > 40%); HFimpEF,heart failure with improved EF; HFmrEF, heart failure with mildly reduced ejection fraction; HFnEF, heart failure with normal ejection fraction; HFpEF, heart failure with preserved ejection fraction; HFrEF, heart failure with reduced ejection fraction; HFsrEF, heart failure with severely reduced ejection fraction; LVEF, left ventricular ejection fraction.