Pediatric Acute Respiratory Distress Syndrome Management

Initial Respiratory Support

The American Academy of Pediatrics recommends beginning with lung-protective mechanical ventilation using tidal volumes of 4-8 mL/kg predicted body weight and plateau pressures ≤30 cmH₂O as the foundation of PARDS management, with higher PEEP strategies for moderate-to-severe disease 1, 2
Consider a trial of non-invasive ventilation (NIV) or high-flow nasal cannula (HFNC) only in children without clear intubation indications who are responding to initial resuscitation, with a starting HFNC flow of 30-40 L/min and FiO₂ 50-60% 2, 3
Proceed immediately to intubation in a controlled setting if deterioration occurs within 1 hour, FiO₂ exceeds 70%, or flow exceeds 50 L/min 3

Set tidal volume at 4-8 mL/kg predicted body weight, not actual body weight, to minimize lung injury 1, 2
Maintain plateau pressure ≤30 cmH₂O at all times to prevent barotrauma 1, 3
Use higher PEEP in moderate-to-severe PARDS, guided by the ARDS-network PEEP-to-FiO₂ grid, with caution for hemodynamic effects 1

Implement conservative fluid management once respiratory status is stabilized to minimize pulmonary edema 1, 2, 3
Avoid excessive fluid administration, which worsens oxygenation, promotes right ventricular failure, and increases mortality 1, 3

Implement prone positioning for at least 12 hours per day in severe PARDS, as this has demonstrated significant mortality reduction 1, 2, 3
Consider neuromuscular blockade for 24-48 hours after ARDS onset in severe PARDS to improve ventilator synchrony and reduce oxygen consumption 1, 2, 3
Do not use inhaled nitric oxide routinely in all children with PARDS, but consider as rescue therapy only for refractory hypoxemia after optimizing all other oxygenation strategies 1, 2

Continuously monitor oxygen saturation, respiratory mechanics, and hemodynamics to promptly identify any deterioration 3
Assess right ventricular function via echocardiography, as RV failure significantly worsens outcomes 3

Consider VV-ECMO only at centers with ECMO expertise for patients with severe ARDS failing conventional management, particularly those with potentially reversible disease 3