When considering plasma concentrations of the cardiac biomarkers in the patients with HF, plasma concentrations of NT-proBNP (Estimate: –0.998; T = –2.52; 95%CI –1.778–0.218; P = 0.012) and MR-proANP (Estimate: –0.488; T = –0.845–0.132; P = 0.007) were lower in obese patients, compared to non-obese patients, whereas no differences in plasma concentrations of MR-proADM (Estimate: 0.066; T = 0.70; 95%CI –0.119–0.250; P = 0.484) or copeptin (Estimate: 0.140; T = 0.56; 95%CI –0.354–0.633; P = 0.578) were observed. The gene discussed is AVP; the disease is hydrops fetalis.