Sex differences on new-onset heart failure in patients with known or suspected coronary artery disease
- 10 May 2021
- journal article
- research article
- Published by Oxford University Press (OUP) in European Journal of Preventive Cardiology
- Vol. 28 (15), 1711-1719
- https://doi.org/10.1093/eurjpc/zwab078
Abstract
The impact of sex in patients with CAD has been widely reported, but little is known about the influence of sex on the risk of new-onset HF in patients with known or suspected CAD. We aimed to examine sex-related differences and new-onset heart failure (HF) risk in patients with known or suspected coronary artery disease (CAD) undergoing vasodilator stress cardiac magnetic resonance (CMR). We prospectively evaluated 5899 consecutive HF-free patients submitted to stress CMR for known or suspected CAD. Ischaemic burden (number of segments with stress-induced perfusion deficit) and left ventricular ejection fraction (LVEF) were assessed by CMR. The association between sex and new-onset HF (including outpatient diagnosis or acute HF hospitalization) was evaluated using a Cox proportional hazards regression model adjusted for competing events [death, myocardial infarction (MI), and revascularization]. A total of 2289 (38.8%) patients were women. During a median follow-up of 4.5 years, 610 (10.3%) patients died, 191 (3.2%) suffered an MI, 905 (15.3%) underwent revascularization, and 314 (5.3%) developed new-onset HF. Unadjusted new-onset HF rates were higher in women than in men (1.25 vs. 0.83 per 100 person-years, P = 0.001). After comprehensive multivariate adjustment, women showed an increased risk of new-onset HF (hazard ratio 1.58, 95% confidence interval 1.18–2.10; P = 0.002). We found a sex-differential effect along the continuum of LVEF (P-value for interaction = 0.007). At lower LVEF, there was an increased risk in both sexes. However, compared with men, the risk of new-onset HF was higher in women with LVEF >55%. Women with known or suspected CAD are at a higher risk of new-onset HF. Further studies are needed to unravel the mechanisms behind these sex-related differences.Funding Information
- Instituto de Salud Carlos III
- Fondo Europeo de Desarrollo Regional (PI17/01836, PI20/00637)
- CIBERCV (16/11/00486, 16/11/00420, 16/11/00403)
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