March 2021 Br J Cardiol 2021;28:14–18 doi:10.5837/bjc.2021.010
Bethany Wong, Sandra Redmond, Ciara Blaine, Carol-Ann Nugent, Lavanya Saiva, John Buckley, Jim O’Neill
Introduction Heart failure (HF) is a clinical syndrome characterised by breathlessness, leg swelling and fatigue, which is caused by a primary cardiac abnormality. HF can be categorised into HF with a reduced ejection fraction (HFrEF; ejection fraction <50%) or HF with a preserved ejection fraction (HFpEF; ejection fraction >50%).1 It was estimated in 2012, in Ireland, that 90,000 people had HF, with another 160,000 people at risk of developing the disease.2 There are also an estimated 10,000 new cases of HF every year.2 Both prevalence and incidence have likely increased since 2012 due to the ageing population and increases in comorbid
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