Long-term pulmonary consequences in survivors with bronchopulmonary dysplasia

Area of Science:

• Neonatology
• Pediatric Pulmonology
• Respiratory Medicine

Background:

• Abnormal airway function is well-documented in infants with bronchopulmonary dysplasia (BPD).
• Residual pulmonary dysfunction persists into childhood and adulthood, even in preterm infants without BPD who underwent mechanical ventilation.
• Extremely compliant airways in very low birth weight infants increase susceptibility to barotrauma during neonatal mechanical ventilation.

Purpose of the Study:

• To highlight the long-term consequences of airway injury in infants, particularly those with BPD.
• To emphasize the need for minimizing airway barotrauma through optimized ventilatory support post-surfactant therapy.
• To advocate for comprehensive pulmonary follow-up services alongside neurodevelopmental services for high-risk infants.

Main Methods:

• Review of existing clinical and pulmonary function test evidence regarding airway function in infants.
• Analysis of long-term outcomes in preterm neonates, including those with and without BPD.
• Consideration of the impact of mechanical ventilation and surfactant therapy on airway health.

Main Results:

• Established evidence of abnormal airway function in infants with BPD, persisting into later life.
• Demonstrated residual pulmonary dysfunction in mechanically ventilated preterm infants, even without a BPD diagnosis.
• Identified airway barotrauma as a significant risk factor for long-term airway dysfunction in vulnerable infants.

Conclusions:

• Airway injury during the neonatal period can lead to lasting abnormal airway function in infants.
• Reducing ventilator-induced barotrauma is crucial for minimizing long-term respiratory morbidity.
• Integrating pulmonary function testing into neonatal follow-up can improve outcomes and reduce hospital readmissions for infants at risk.