NPPB and hydrops fetalis: Multiple Cox regression analysis identified PWV, Aix, and NT-proBNP as independent predictors of re-hospitalization in HF patients, with significant hazard ratios: PWV (HR = 1.15, p = 0.02), AIx (HR = 1.03, p = 0.02), and NT-proBNP (HR = 1.0001, p < 0.01).