NPPB and hydrops fetalis: However, LVEDV, LVESV, and plasma BNP level in the RDN + HF group and HF-control group were significantly higher than those in the sham-operated group at 4 weeks after interventions (Table 1 and Figure 1), whereas no significant differences were found between the sham-operated group and RDN group (Table 1 and Figure 1).