Concentration of cytokine at the beginning of CHF Cytokine Normal (pg / ml) median (25th-75th), n=31 TNF-α < 11 13.06 (6.34 - 22.41) IL-1b < 14.5 5.0 (1.7 - 7.65) IL-6 < 1.23 665.1 (147.73 - 1095.0) IL-8 1 - 159.4 710.2 (198.0 - 1351.0) IL-10 < 1.9 21.91 (7.88 - 51.4) 16 Comment: Most plasma cytokin concentrations before continuous hemofiltration are higher than normal values.