NTproBNP and BNP were higher in the decompensated than in the stable HF patients (10407 pg/mL (12393) vs. 4208 pg/mL (7621), p < .0001 and 1527 pg/mL (2141) vs. 729 pg/mL (15311), p < .0001). Here, NPPB is linked to hydrops fetalis.