Abstract
BackgroundSacubitril/valsartan (S/V) demonstrated significant effects in improving left ventricular performance and remodeling in patients with heart failure with reduced ejection fraction. However, its effects on the right ventricle remain unclear. This systematic review and meta‐analysis aimed to assess the impact of S/V on right ventricular function and pulmonary hypertension.Methods and ResultsWe searched PubMed, Embase, Cochrane Library, and Web of Science from January 2010 to April 2021 for studies reporting right ventricular and pulmonary pressure indexes following S/V treatment. The quality of included studies was assessed using the Newcastle‐Ottawa scale. Variables were pooled using a random‐effects model to estimate weighted mean differences with 95% CIs. We identified 10 eligible studies comprising 875 patients with heart failure with reduced ejection fraction (mean age, 62.2 years; 74.0% men), all of which were observational. Significant improvements on right ventricular function and pulmonary hypertension after S/V initiation were observed, including tricuspid annular plane systolic excursion (weighted mean difference, 1.26 mm; 95% CI, 0.33–2.18 mm; P=0.008), tricuspid annular peak systolic velocity (weighted mean difference, 0.85 cm/s; 95% CI, 0.25–1.45 cm/s; P=0.005), and systolic pulmonary arterial pressure (weighted mean difference, 7.21 mm Hg; 95% CI, 5.38–9.03 mm Hg; P<0.001). Besides, S/V had a significant beneficial impact on left heart function, which was consistent with previous studies. The quadratic regression model revealed a certain correlation between tricuspid annular plane systolic excursion and left ventricular ejection fraction after excluding the inappropriate data (P=0.026).ConclusionsThis meta‐analysis verified that S/V could improve right ventricular performance and pulmonary hypertension in heart failure with reduced ejection fraction, which did not seem to be fully dependent on the reverse remodeling of left ventricle.RegistrationURL: https://www.crd.york.ac.uk/prospero; Unique identifier: CRD42021247970.
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