Our Experience With Sacubitril/Valsartan in Chronic Heart Failure Management - HFrEF in the Ambulatory Setting.
Background
The prevalence of chronic heart failure (CHF) is up to 1-2% of the adult population in developed countries, rising to >10% after the age of 70. Heart failure with reduced ejection fraction (HFrEF) remains a prevalent clinical syndrome associated with significant morbidity and mortality.


Objective
The aim of this study was to evaluate the clinical efficacy of sacubitril/valsartan in a group of ambulatory patients with heart failure with reduced ejection fraction (HFrEF) and its effect on the hemodynamic, metabolic, renal, and cardiac remodeling parameters.


Methods
From January 2018 to May 2021, 106 patients with chronic heart failure with reduced ejection fraction (HFrEF) were prospectively enrolled. Patients treated with sacubitril/valsartan (ARNI) were compared with an arm of the same size (n = 53) and matched by age and gender who were taking a standard optimal medical therapy for HFrEF.


Results
The 106 patients completing the study were characterized by age: 69.5 ± 8.0, 64% are male gender. The mean duration of follow-up in the 2 treatment arms was 12 months. In the ARNI arm, we evaluate the hemodynamic, metabolic, renal, and cardiac remodeling parameters upon the initial evaluation and at the end of the follow-up after 12 months treatment with sacubitril/valsartan. The LVEF values increased significantly (p < 0.001) in the ARNI arm compared to the OMT arm, 42.1 % vs. 30.1%. The LVMI decreased from a baseline value of 153.1 g/m2 to 147.8 g/m2 with significant improvement only in the arm treated with ARNI. The eGFR values increased significantly (p < 0.001) in the ARNI arm compared to the OMT arm 70.1 vs. 64.9 mL/min/1.73 m2. Initiation and titration of sacubitril-valsartan was associated with a reduction in NT-pro-BNP concentration, the values of NT-pro-BNP improved significantly only in the arm treated with ARNI 3107.1 vs. 5678.2. Mortality and re-hospitalization due to HF were lower in the arm treated with ARNI compared to the control (20.3 vs. 32.4 % and 25.3 vs. 46.6 %, respectively; p < 0.05).


Conclusion
Sacubitril/valsartan is an important advancement in the treatment of HFrEF. Sacubitril/valsartan induce "hemodynamic recovery". This study provides real-world data demonstrating incremental improvements in functional and echocardiographic outcomes in optimally treated patients with HFrEF switched to sacubitril/valsartan in ambulatory setting.