Sacubitril/valsartan for heart failure with reduced ejection fraction: a first real-life observational study in Poland Sacubitril/valsartan for heart failure with reduced ejection fraction: A first real-life observational study in Poland

BACKGROUND Despite the progress in the treatment of heart failure with reduced ejection fraction (HFrEF), the prognosis remains unfavorable. OBJECTIVES To evaluate the effectiveness, tolerance and safety after one-year follow-up of Polish patients with stable chronic HFrEF treated with sacubitril/valsartan. MATERIAL AND METHODS This was an observational multicenter study conducted in 3 centers (Krakow, Łodź and Warszawa) specializing in heart failure (HF). We enrolled 89 HFrEF patients (aged 59.3 ±13.5 years, 82% males) in NYHA class II-IV (ambulatory). Clinical, laboratory and echocardiographic parameters were evaluated at baseline and after a one-year follow-up. The composite endpoint was defined as death or urgent HF hospitalization. RESULTS After 1 year, 80% of patients used 50% or more of the target dose of sacubitril/valsartan. After a year of treatment, there were significant improvements of HF symptoms, N-terminal prohormone B-type natriuretic peptide (NT proBNP), ejection fraction (EF), and distance in six-minute walk test (6MWP) (all p < 0.001). Patients treated with the highest dose of sacubitril/valsartan exhibited the greatest benefits. The safety profile was favorable and consistent with that previously reported; however, therapy discontinuation due to side effects occurred in 11% of patients. The independent predictors for composite endpoint (n = 24, 26.9%) were history of HF hospitalization, tricuspid annular plane systolic excursion (TAPSE) and angiotensin-converting-enzyme inhibitor (ACEI)-naive patients. CONCLUSIONS Treatment of chronic HFrEF patients with sacubitril/valsartan is safe and is associated with significant clinical and objective improvement. The non-survivors had more advanced HF, so the initiation and uptitration of sacubitril/valsartan should be done early.