NPPB and hydrops fetalis: The study from Fringu et al. has shown that there were no significant differences between the mean N‐terminal pro‐brain natriuretic peptide (NT‐proBNP) values in patients with or without DM; however, this biomarker still holds a pivotal role in the evaluation of subjects with HF and DM, facilitating the establishment of correct management and follow‐up.9