Variable No Intervention (N=293) Intervention (N=16) p-Value
Age (day) 20±17 22±21 0.7
Weight (Kg) 3.2±0.5 3.3±0.6 0.6
Height (cm) 51±5 51±4 0.8
Body surface area (\(m^{2})\) 0.2±0.02 0.2±0.03 0.7
Cardiopulmonary bypass time (min) 160±39 182±48 0.1
Cross clamp time (min) 96±27 101±28 0.5
Peak pressure gradient across the neo-pulmonary valve (mmHg) 9±6 14±13 0.1
Peak pressure gradient across the left pulmonary artery (mmHg) 13±9 28±25 0.03
Peak pressure gradient across the right pulmonary artery (mmHg) 16±11 33±24 0.01
Total Peak Gradient* 38±20 76±46 0.004