Study limitations
We included different age groups and patients who had one-ventricle and two-ventricle repair. This wide variability of the preoperative characteristics could have affected the outcomes. We used simple randomization that could have created an imbalance in the number of patients between groups. Last, our center is a tertiary referral center; not all patients were available for follow-up. Some patients were foreigners and were unavailable in the country after surgical repair.