Similarly, NT-proBNP is also a strong prognostic factor, and its evaluation at the beginning of a hospitalization for HF is equally recommended as BNP, as shown by the ProBNP Investigation of Dyspnea in the Emergency Department (PRIDE) study and an extensive meta-analysis, the International Collaborative of NT-proBNP Study [17,18]. Here, NPPB is linked to hydrops fetalis.