13.3 SACUBITRIL/VALSARTAN THERAPY IS ASSOCIATED WITH DECREASE OF ARTERIAL ELASTANCE IN STABLE PATIENTS WITH HEART FAILURE WITH REDUCED EJECTION FRACTION
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Objective: Angiotensin receptor-neprilysin inhibition with LCZ696 is a novel approach for the treatment of heart failure with reduced ejection fraction (HFrEF). The aim of the study was to assess the effects of valsartan/sacubitril on parameters of ventricular-arterial coupling and left ventricular (LV) work efficiency in patients with stable HFrEF.
Methods: In the open-label follow-up to PARADIGM HF study 18 patients with stable HFrEF (16 male, 69±9 years (MSD), arterial hypertension 83%, previous myocardial infarction 89%, diabetes mellitus 39%, LVEF 324%) were enrolled. 2-dimentional echocardiography was performed to assess arterial (Ea) and end-systolic LV elastance (Ees) baseline and after 6 month LCZ696 therapy. VAC was assessed as the ratio Ea/Ees. Wilcoxon test was considered significant if p<0.05.
Results: Baseline brachial BP decreased from 137.1±22.0/83.4±11.8 to 120.5±13.5/75.1±9.3 mmHg (Δ −16.6±14.2/−8.3±10.3 mmHg, p<0.05). LCZ696 therapy was associated with significant decrease of VAC (2.10±0.55 vs 1.68±0.32, p<0.05), Ea (2.11±1.04 vs 1.66±0.6 mmHg/ml/m2 (Δ −0,70 (−0.26%)), p<0.05), arterial peripheral resistance (0.029±0.016 vs 0.027±0.011 mmHg/ml/min, p<0.05), increase of stroke volume (63±24 vs 78±26 ml, p<0.05). Ees remained unchanged (1.11±0.42 vs 1.01±0.52 mmHg/ml/m2, p>0.05). LCZ696 therapy was associated with potential energy decrease (8049±2846 vs 5037±2492 mmHg*ml/m2, p<0.05),stroke work/pressure-volume area index (LV work efficiency) increase (0.48±0.09 vs 0.63±0.05, p<0.05). There was no statistically significant correlation between decrease of Ea and brachial BP decrease.
Conclusion: LCZ696 therapy was associated with BP-independent improvement in VAC related with decrease of Ea rather than Ees changes and associated with decrease of arterial peripheral resistance and improvement of LV work efficiency
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TY - JOUR AU - Zhanna Kobalava AU - Svetlana Villevalde AU - Olga Lukina AU - Evgenii Tyukhmenev PY - 2016 DA - 2016/11/24 TI - 13.3 SACUBITRIL/VALSARTAN THERAPY IS ASSOCIATED WITH DECREASE OF ARTERIAL ELASTANCE IN STABLE PATIENTS WITH HEART FAILURE WITH REDUCED EJECTION FRACTION JO - Artery Research SP - 80 EP - 80 VL - 16 IS - C SN - 1876-4401 UR - https://doi.org/10.1016/j.artres.2016.10.112 DO - 10.1016/j.artres.2016.10.112 ID - Kobalava2016 ER -