Furthermore, polymorphisms rs9934438, rs9923231 in the VKORC1 gene, rs5918 in the ITGB3 gene, and rs2070959 in UGT1A6 were significantly associated with complications of HF patients according to the logistic regression analysis (p < 0.05) (Supplementary Table S7). Here, VKORC1 is linked to hydrops fetalis.