The document discusses entresto, a medication that represents a significant advancement in the treatment of heart failure (HF), particularly in patients with reduced ejection fraction (HFREF) and preserved ejection fraction (HFPEF). It highlights the critical need for improved diagnostic definitions and classifications of heart failure, the multifactorial nature of HFPEF, and entresto's role in treating this condition. The document also presents clinical trial data supporting the efficacy and safety of entresto in reducing hospitalization and cardiovascular mortality among heart failure patients.