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MediumCardiology / EndocrinologyHeart Failure with Reduced Ejection Fraction (HFrEF)HF management

A 58-year-old with chronic HFrEF (LVEF 25%) presents for optimization. He is euvolemic on sacubitril/valsartan, metoprolol succinate, and furosemide. eGFR is 55 mL/min/1.73 m², K⁺ 4.6 mEq/L, BP 118/72 mm Hg. Which additional therapy best reduces mortality and HF hospitalization now?

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