Background:The role of infl ammatory and hemodynamic stress biomarkers in heart failure (HF) patients treated de novo with beta-blockers has been poorly studied. Methods: A total of 86 patients (age 56 ± 9 years, 81 men) with left ventricular ejection fraction (LVEF) < 40% and previously not treated with beta-blockers were initiated on carvedilol.
At baseline and 12 months later we performed echocardiography, cardiopulmonary exercise testing, and determined serum levels of B-type natriuretic peptide (BNP), endothelin-1 (ET-1), C-reactive protein (CRP), interleukin-6, and tumor necrosis factor alpha (TNF -a). Patientswere followed up over a total period of 9 ± 3 years from baseline. Results: Increased baseline CRP and its on-treatment decrease were associated with improvement of LVEF (est. coeffi cient per one SD: 1.6; 95% CI : -0.05,3.28; p = 0.056, and -1.80; -3.43, -0.18; p = 0.030, respectively) (-6.83; -11.32; -2.34; p = 0.003, and 5.85; 1.23; -10.46; p = 0.014, respectively). Higher baseline ET-1 and on-treatment increase in TNF-a predicted frequent admissions (> 1) for cardiac complications (odds ratio per one SD: 1.98; p = 0.025, and 2.07, p = 0.021, respectively) (Cardiol J 2013; 20, 2: 144-151)