Analysis of the Correlation Between Serum Procalcitonin (PCT), C-Reactive Protein (CRP) Levels and the Occurrence/Severity of Bronchopulmonary Dysplasia in ELBW/VLBW Neonates

In this retrospective study, elevated serum PCT and CRP levels were positively associated with the severity of BPD in ELBW/VLBW neonates. The identified risk factors, including intrauterine infection, gestational age <28 weeks, prolonged assisted ventilation, infectious pneumonia, and high FiO₂, are independently associated with BPD. These findings suggest that monitoring these biomarkers and risk factors may warrant intensified clinical attention.