This prospective RCT at Cairo University Children Hospitals enrolls critically ill pediatric patients (intubated, NIV, or post-extubation) with lung atelectasis unresponsive to 48 hours of conventional recruitment. Randomization uses computer-generated sealed envelopes: Group A receives bronchoscopy with active inflation; Group B gets suctioning, chest physiotherapy ± cough assist. Crossover permitted after 5 days failure or if unsafe; pulmonologist assesses. Data covers personal history (age, sex, weight, residency) and clinical details (PICU diagnosis, symptoms/duration).
Strengths include bias-minimizing allocation, ethical flexibility, and standardized baselines. Suggested expansions: ventilation parameters (mode, FiO2, PEEP), atelectasis scoring (X-ray/US), outcomes (P/F ratio, LOS, VAP), and safety metrics for power (targeting 20-30% non-response) to align with PALICC-2. (612 chars)