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Trejo-Velasco, Blanca; Cruz-González, Ignacio; Barreiro-Pérez, Manuel; Díaz-Peláez, Elena; García-González, Pilar; Martín-García, Ana; Eiros, Rocío; Merchán-Gómez, Soraya; Pérez Del Villar, Candelas; Fabregat-Andrés, Oscar; Ridocci-Soriano, Francisco; Sánchez, Pedro L
Journal of clinical medicine, 01/2022, Volume: 11, Issue: 3Journal Article
Right ventricular (RV) to pulmonary circulation (PC) coupling can stratify prognosis in heart failure (HF). In this study, we assessed the prognostic role of the mean velocity of the pulmonary artery (mvPA) determined by cardiac magnetic resonance (CMR) in HF with preserved ejection fraction (HFpEF). Inclusion of 58 HFpEF outpatients that underwent CMR with measurement of RV-PC coupling parameters including mvPA between 2016 and 2019. The primary combined endpoint was a composite of HF readmissions and all-cause mortality. Optimal cut-off value of mvPA calculated by receiver operating curve for the prediction of the primary endpoint was 9 cm/s. Over a median follow-up of 23 months (interquartile range: 24), 21 patients met the primary endpoint. The primary endpoint was more frequent in patients with mvPA ≤ 9 cm/s, as indicated by Kaplan-Meier survival curves; Log-Rank: 9.193, = 0.02, regardless of RV dysfunction. On Cox multivariate analysis, mvPA ≤ 9 cm/s emerged as an independent prognostic predictor of the primary endpoint (HR: 4.11, 95% CI: 1.28-13.19, = 0.017), together with left atrial area by CMR (HR: 1.08, 95% CI: 1.01-1.24, = 0.034). In our HFpEF cohort, mvPA was associated with a higher rate of the primary endpoint, regardless of RV function, thus enabling identification of patients at higher risk of cardiovascular events before structural damage onset.
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