Which Rapid Sequence Induction Technique Should be Used in Urgent Surgery in Children?

This randomized clinical trial compares classical Rapid Sequence Induction (RSI) and modified Rapid Sequence Induction (mRSI) in pediatric patients with a full stomach undergoing urgent surgery. After standardized preoxygenation with 100% FiO₂ for two minutes, patients are randomized to one of two groups. In the classical RSI group, patients receive propofol (3-5 mg/kg) until loss of consciousness followed by succinylcholine (1-2 mg/kg, age-adjusted), and tracheal intubation is performed 30 seconds after induction without positive pressure ventilation. In the modified RSI group, patients receive fentanyl (4 µg/kg) prior to propofol and succinylcholine at the same doses, followed by gentle positive pressure ventilation using the anesthesia machine in inspiratory support mode (inspiratory pressure 10 cmH₂O, PEEP 5 cmH₂O) for 30 seconds before tracheal intubation. Demographic characteristics, type of surgery, heart rate, systolic and mean arterial pressure, oxygen saturation, and peri-intubation complications including aspiration and desaturation (defined as SpO₂ \< 90%) are recorded and compared between groups to evaluate safety and efficacy of the two induction techniques