This retrospective cohort study compared pulmonary valve-sparing and transannular patch techniques for correcting Tetralogy of Fallot (ToF) in 102 pediatric patients. The study found that the valve-sparing approach led to shorter durations of mechanical ventilation, ICU stays, and hospitalization, with fewer complications like arrhythmias. However, transannular patch patients had higher rates of severe pulmonary regurgitation. Weight was identified as an independent predictor of ventilation duration.