A practical study on a stepwise simulation intervention guided by video review to improve the quality of cardiopulmonary resuscitation in the pediatric emergency department.

An overall comparison demonstrated a significant difference among the three phases ( P = 0.035), with post hoc analysis showing a significant difference between Groups A and C ( P = 0.016).

The median number of prolonged chest compression interruptions per case decreased, and role allocation improved ( P = 0.045).

No significant difference in ROSC was observed ( P = 0.999).

Airway management and patient assessment were the leading causes of prolonged interruptions.