Regarding the HF likely risk, NT-proBNP levels classified 60.9% (n = 117) as “HF very unlikely”, 22.4% (n = 43) as “HF not likely”, 15.1% (n = 29) as “HF likely”, and 1.6% (n = 3) as “HF very-high risk”. Here, NPPB is linked to hydrops fetalis.