NPPB and hydrops fetalis: The results of our research showed that HF patients with higher NT-proBNP values had higher MPV values, with the differences between our research and the study conducted by Budak being as follows: (1) our study focused on the relationship between NT-proBNP and MPV values; (2) the relationship between MPV and NT-proBNP values was demonstrated by applying the linear regression model, which revealed that by increasing the MPV value by one unit, NT-proBNP is increased by 2677 pg/mL.