Pugliese, N. R., Pellicori, P. , Filidei, F., De Biase, N., Maffia, P. , Guzik, T. J., Masi, S., Taddei, S. and Cleland, J. G.F. (2022) Inflammatory pathways in heart failure with preserved left ventricular ejection fraction: implications for future interventions. Cardiovascular Research, 118(18), pp. 3536-3555. (doi: 10.1093/cvr/cvac133) (PMID:36004819) (PMCID:PMC9897694)
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Abstract
Many patients with symptoms and signs of heart failure have a left ventricular ejection fraction ≥50%, termed heart failure with preserved ejection fraction (HFpEF). HFpEF is a heterogeneous syndrome mainly affecting older people who have many other cardiac and non-cardiac conditions that often cast doubt on the origin of symptoms, such as breathlessness, or signs, such as peripheral oedema, rendering them neither sensitive nor specific to the diagnosis of HFpEF. Currently, management of HFpEF is mainly directed at controlling symptoms and treating comorbid conditions such as hypertension, atrial fibrillation, anaemia and coronary artery disease. HFpEF is also characterised by a persistent increase in inflammatory biomarkers. Inflammation may be a key driver of the development and progression of HFpEF and many of its associated comorbidities. Detailed characterisation of specific inflammatory pathways may provide insights into the pathophysiology of HFpEF and guide its future management. There is growing interest in novel therapies specifically designed to target deregulated inflammation in many therapeutic areas, including cardiovascular disease. However, large-scale clinical trials investigating the effectiveness of anti-inflammatory treatments in HFpEF are still lacking. In this manuscript, we review the role of inflammation in HFpEF and the possible implications for future trials.
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