NPPB and tricuspid valve insufficiency: Specifically, CS showed positive correlations with BNP (r = 0.355, p < 0.001), sST2 (r = 0.290, p = 0.002), LVDD (r = 0.187,p = 0.006), left atrial size (r = 0.317, p < 0.001), E/e′ (r = 0.371, p < 0.001), and peak tricuspid regurgitation velocity > 2.8 m/s (r = 0.235, p = 0.038).