NPPB and hydrops fetalis: In the HF group (59 patients), PWV demonstrated a positive moderately significant correlation with creatinine (r = 0.33; p = 0.01), RDW (r = 0.31; p = 0.02); NT-proBNP (r = 0.28; p = 0.049), brachial SP (r = 0.33; p = 0.01), central SP (r = 0.29; p = 0.02), and a negative moderately significant correlation with eGFR (r = −0.40; p = 0.002) (Figure 1).