| Summary: | <b>Study basis:</b> As a byproduct of protein metabolism, serum uric acid is a controversial risk factor and is the focus of several recent studies in the field of cardiovascular disease. Whether serum uric acid is involved in the development of these pathologies alone or in conjunction with other factors is a matter of debate. <b>Objective:</b> The objective of this study is to assess the direct relationship between serum uric acid and the ejection fraction. <b>Methods:</b> A retrospective study of 303 patients with heart failure, classified according to the ESC guidelines, was conducted, and several parameters, along with the relationship between serum uric acid and ejection fraction, were characterized. <b>Results:</b> A direct relationship between the level of serum uric acid and the ejection fraction was established (<i>p =</i> 0.03); patients with higher uric acid had an increased risk of having a lower ejection fraction. <b>Conclusions</b>: Serum uric acid, even when asymptomatic, is linked with the level of the ejection fraction of the left ventricle.
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