Prognostic impact of left atrial function in heart failure with preserved ejection fraction in sinus rhythm vs. persistent atrial fibrillation.

Autor: Schönbauer R; Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria., Kammerlander AA; Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria., Duca F; Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria., Aschauer S; Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria., Koschutnik M; Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria., Dona C; Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria., Nitsche C; Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria., Loewe C; Department of Bioimaging and Image-Guided Therapy, Division of Cardiovascular and Interventional Radiology, Medical University of Vienna, Vienna, Austria., Hengstenberg C; Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria., Mascherbauer J; Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria.
Jazyk: angličtina
Zdroj: ESC heart failure [ESC Heart Fail] 2022 Feb; Vol. 9 (1), pp. 465-475. Date of Electronic Publication: 2021 Dec 05.
DOI: 10.1002/ehf2.13723
Abstrakt: Aims: We sought to determine the prognostic impact of left atrial (LA) size and function in patients with heart failure with preserved ejection fraction (HFpEF) in sinus rhythm (SR) vs. atrial fibrillation (AF).
Methods and Results: We enrolled consecutive HFpEF patients and assessed indexed LA volumes and emptying fractions (LA-EF) on cardiac magnetic resonance imaging. In addition, all patients underwent right and left heart catheterization, 6 min walk test, and N-terminal prohormone of brain natriuretic peptide evaluation. We prospectively followed patients and used Cox regression models to determine the association of LA size and function with a composite endpoint of heart failure hospitalization and cardiovascular death. A total of 188 patients (71% female patients, 70 ± 8 years old) were included of whom 92 (49%) were in persistent AF. Sixty-five patients reached the combined endpoint during a follow-up of 31 (9-57) months. Multivariate Cox regression adjusted for established risk factors revealed that LA-EF was significantly associated with outcome in patients in SR [adjusted hazard ratio 2.14; 95% confidence interval (1.32-3.47) per 1-SD decline, P = 0.002]. In persistent AF, no LA imaging parameter was related to outcome. By receiver operating characteristic and restricted cubic spline analyses, we identified an LA-EF ≥ 40% as best indicator for favourable outcomes in patients with HFpEF and SR. Persistent AF carried a similar risk for adverse outcome compared with impaired LA-EF (<40%) in SR (log-rank, P = 0.340).
Conclusions: In HFpEF patients in SR, impaired LA-EF is independently associated with worse cardiovascular outcome, which is similar to persistent AF. In persistent AF, LA parameters lose their prognostic ability.
(© 2021 The Authors. ESC Heart Failure published by John Wiley & Sons Ltd on behalf of European Society of Cardiology.)
Databáze: MEDLINE
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