The Diuretic Potential of Sacubitril/Valsartan: A Tale of 2 Patients.

Background: Heart failure prevalence continues to rise in the United States causing significant morbidity and mortality and costing billions in healthcare expenditures. Consensus guidelines updated in 2016 recommend an angiotensin receptor-neprilysin inhibitor (ARNi) as a therapeutic option in lieu of an angiotensin-converting enzyme inhibitor or angiotensin receptor blocker for the management of stage C heart failure with reduced ejection fraction (HFrEF). For chronic HFrEF patients with New York Heart Association class II or III symptoms tolerating an angiotensin-converting enzyme inhibitor/angiotensin receptor blocker, a change in therapy to an ARNi is recommended to further reduce morbidity and mortality.