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Figure 1: Changes in tricuspid regurgitation severity before and after birth. Left panels showing fetal echocardiograms at 27 weeks and 6 days, and right panels showing echocardiograms at 3 months after birth. (a) In Twin 1, the donor in twin amniotic fluid discordance circulation, severity of tricuspid regurgitation worsened after birth (from “mild” to “moderate”). (b) In Twin 2, the recipient of twin amniotic fluid discordance circulation, severity of tricuspid regurgitation was ameliorated after birth (from “moderate to severe” to “moderate”)

Figure 1: Changes in tricuspid regurgitation severity before and after birth. Left panels showing fetal echocardiograms at 27 weeks and 6 days, and right panels showing echocardiograms at 3 months after birth. (a) In Twin 1, the donor in twin amniotic fluid discordance circulation, severity of tricuspid regurgitation worsened after birth (from “mild” to “moderate”). (b) In Twin 2, the recipient of twin amniotic fluid discordance circulation, severity of tricuspid regurgitation was ameliorated after birth (from “moderate to severe” to “moderate”)