Disease-specific parameters, including BNP for those with HF (n = 32) and PFTs for those with asthma or COPD (n = 218), were recorded more frequently in GMS patients than in PPs (BNP: 66.7% vs 27.2%, PFTs: 18.2% vs 12.7%, respectively), although the difference was not statistically significant. Here, NPPB is linked to hydrops fetalis.