Pulmonary and extrapulmonary features in bronchopulmonary dysplasia: a comparison with healthy children

Area of Science:

• Pediatric Pulmonology
• Neonatology
• Rehabilitation Medicine

Background:

• Bronchopulmonary dysplasia (BPD) is a chronic lung disease affecting preterm infants.
• Long-term effects of BPD on physical function and muscle strength are not fully understood.
• Assessing functional capacity and muscle strength is crucial for optimizing rehabilitation strategies.

Purpose of the Study:

• To compare functional capacity and peripheral muscle strength in preterm children with BPD versus healthy full-term controls.
• To identify specific deficits in pulmonary function, body composition, posture, and muscle strength in BPD.
• To explore correlations between functional capacity and other physical parameters in BPD.

Main Methods:

• Eighteen preterm children with BPD and 20 healthy controls underwent pulmonary function testing.
• Body composition, posture, quadriceps strength, and hand grip strength were assessed.
• Functional capacity was evaluated using the six-minute walking test (6MWT).

Main Results:

• Children with BPD showed significantly lower pulmonary function, 6MWT distance, and quadriceps strength.
• BPD subjects had poorer postural analysis scores and higher exercise heart rates.
• 6MWT distance correlated with height, fat-free mass, dyspnea perception, and hand grip strength in BPD.

Conclusions:

• Preterm children with BPD present with impaired pulmonary and extrapulmonary characteristics.
• Deficits include reduced lung function, lower fat-free mass, worsened postural function, and decreased muscle strength.
• These findings inform the selection of outcome measures for pulmonary rehabilitation in BPD.