Therapeutic Strategy for Heart Failure with Reduced Ejection Fraction and Cardiac Amyloidosis.

We sometimes encounter patients with systolic heart failure and cardiac amyloidosis. Neurohormonal blockers are guideline-directed medical therapy for those with systolic heart failure. However, its implication among the above cohort remains controversial. Of 3 patients with systolic heart failure and cardiac amyloidosis who we encountered, cardiac reverse remodeling was achieved in 2 patients who received neurohormonal blockers, whereas cardiac function remained unchanged in a patient not receiving neurohormonal blockers. Neurohormonal blockers might be keys to achieve cardiac reverse remodeling and favorable clinical outcomes even in patients with systolic heart failure and cardiac amyloidosis, although further larger-scale studies are required to validate our hypothesis.