Congestive heart failure is a condition in which the heart is unable to pump sufficient blood to meet the body’s needs. Left ventricular ejection fraction (LVEF), obtained from echocardiography, reflects the proportion of blood ejected by the left ventricle during each contraction. Anemia is defined as a reduced number of red blood cells or decreased oxygen-carrying capacity, resulting in inadequate oxygen delivery to tissues. It is a common comorbidity in heart failure and an independent predictor of morbidity and mortality. This study aimed to determine the correlation between LVEF and anemia in patients with congestive heart failure. This study employed an observational analytic design with a cross-sectional design. A total of 137 subjects were selected using consecutive sampling from medical records. Among the subjects, 63 (46.0%) had HFrEF, 21 (15.3%) HFmrEF, and 53 (38.7%) HFpEF. Anemia was found in 77 patients (56.2%), consisting of mild (57.1%), moderate (33.8%), and severe anemia (9.1%). Spearman correlation analysis showed a significant association between LVEF and anemia (p = 0.019). A significant correlation was found between LVEF and anemia in patients with congestive heart failure.
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