VEGFA and hydrops fetalis: Echocardiography showed that TAC‐operated mice had characteristics of HF, including significantly reduced FS% values, LV chamber dilation (decreased LVAW and LVPW thickness), and increased LW/TL ratios, whereas these effects were markedly and dose‐dependently attenuated by administration of VEGF‐C156S (Figures 6A and 6B, supplementary material online, Table S5).