CRP and hydrops fetalis: In addition, sST2 level weakly correlated with NYHA functional class (r = 0.13), LVEF (r = 0.13), creatinine clearance (r = 0.22), BNP (r = 0.29), NT-proBNP (r = 0.41), and C-reactive protein (r = 0.43; p < 0.05), one year after acute HF presentation [34].