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Background: Previous studies have suggested that a lower lymphocyte ratio (Ly%) in the white blood cell (WBC) differential count is related to worse outcomes in patients with acute heart failure (AHF) and other cardiovascular disorders. Methods: In the Pre-RELAX-AHF study, 234 patients with AHF, systolic blood pressure >125 mm Hg and brain natriuretic peptide ≥350 pg/ml or equivalent were randomized to 1 of 4 intravenous doses of relaxin or placebo and followed up for 6 months following randomization. Complete blood count and differential were performed by a central laboratory at baseline and then daily to day 5 and on day 14. Results: The WBC count by itself was not associated with measures of disease severity or outcome, and patients with Ly% 13%, except for a higher baseline WBC count, elevated baseline glucose, older age and higher rates of peripheral vascular disease. However, patients with Ly% |
