IL6 and hydrops fetalis: Results: Patients with HF demonstrated significantly elevated levels of IL-1 (6.77 ± 1.17 vs. 1.27 ± 0.42 pg/mL, p < 0.001), IL-6 (54.12 ± 4.64 vs. 9.29 ± 1.72 pg/mL, p < 0.001), and TNF-α (235.56 ± 18.88 vs. 67.37 ± 6.28 pg/mL, p < 0.001) compared to controls.