P1236effects of sacubitril-valsartan in heart failure with preserved ejection fraction in patients undergoing peritoneal dialysis

Abstract Background and Aims Angiotensin receptor–neprilysin inhibitor (ARNI) sacubitril–valsartan is a landmark drug in heart failure with reduced ejection fraction (HFrEF), however, it remains unclear in patients with heart failure with preserved ejection fraction (HFpEF), especially the data of ARNI treatment on peritoneal dialysis (PD) patients with HFpEF are lacking. The present study was designed to determine the efficacy and safety of sacubitril–valsartan in patients with HFpEF undergoing peritoneal dialysis. Method We assigned end stage renal disease (ESRD)patients, receiving peritoneal dialysis for 3 months, with New York Heart Association (NYHA) class II to IV heart failure, left ventricular ejection fraction ≥ 50%, and elevated level of N-terminal pro–B-type natriuretic peptide (NT-proBNP) to receive sacubitril/valsartan treatment. Patients were regularly followed up after medication treatment. Wilcoxon matched-pair signed-rank (2 samples) tests were applied to investigate the alterations in Clinical and biochemical parameters as the efficacy before and after taking sacubitril–valsartan, and safety was also assessed. Results Twenty-one patients were recruited in this study. Compared with baseline levels, NT-proBNP levels (p=0.002) and heart rate (p=0.031) were markedly decreased after treatment with sacubitril/valsartan, signs and symptoms of heart failure (21/21 versus 15/21, p=0.021) and NYHA classification were notably improved after 3-12 months follow-up. Conclusion The present data suggested that sacubitril/valsartan treatment in the patients with HFpEF undergoing peritoneal dialysis was effective and safe, which is the first study about sacubitril/valsartan treatment for the PD patients with HFpEF, and it may bring the hope for these patients due to no other effective methods at present.