Table 1. Evolution of the hydrops features and progressive changes in CCO after thoracoamniotic shunt positioning.

CO: cardiac output, CCO: combined cardiac output, *according to Rocha et al. (2019) [5]

Ultrasound longitudinal evaluations	Before intervention	1 day after	7 days after	14 days after	21 days after
Perihepatic ascites (mm) (± %)	24	17 (-29.2%)	1 (-94.1%)	0 (-100%)	12 (+1200%)
Frontal edema (mm) (± %)	13.6	10 (-26.5%)	6 (-40%)	1 (-83.3%)	5 (+500%)
Hydrothorax (mm) (± %)	18	7 (-61.1%)	2 (-71.4%)	0 (-100%)	10 (+1000%)
Amniotic fluid, max vertical pocket (mm) (± %)	99	90 (-9.1%)	86 (-4.4%)	80 (-6.8%)	92 (+15%)
Left CO (ml/min) (Z-score*)	178.9 (-1.2)	161.3 (-1.3)	156.7 (-1.4)	218.8 (-0.8)	130.1 (-2.2)
Right CO (ml/min) (Z-score*)	281.8 (-1.2)	253.0 (-1.4)	283.3 (-1.2)	468.9 (-0.3)	382.6 (-1.0)
CCO (ml/min) (Z-score*)	460.7 (-1.2)	414.3 (-1.4)	409.7 (-1.4)	687.7 (-0.2)	512.7 (-1.4)