IFITM3 and hydrops fetalis: Notably, IFITM1 levels were significantly higher in AMI-HF patients (2.41 ± 0.38 ng/mL vs. 1.79 ± 0.29 ng/mL, p = 0.007), while IFITM2 and IFITM3 showed no significant expression differences between subgroups (Figures 7A–C).