Figure 2

The association of the plasma BNP and serum FGF23 levels in the below- and above-/equal-median RA pressure groups and the hemodynamic parameters obtained by heart catheterizations and echocardiograms. The plasma BNP levels were well correlated with all of these parameters in both the below- and above-/equal-median RA pressure groups (a, c, e). The serum FGF23 levels in both below- and above-/equal-median RA pressure groups correlated with the CI (b). The levels in the above-/equal-median RA pressure group were correlated with PA pressure (d) and PCW pressure (f), whereas those in the below-median RA pressure group were not (d, f). BNP, B-type natriuretic peptide; CI, cardiac index; FGF23, fibroblast growth factor 23; PA, pulmonary artery; PCW, pulmonary capillary wedge; RA, right atrial.