Mechanisms of atelectasis. A, Collapse of the lung in pneumothorax. B, Compression of the lung by pleural fluid. C, Resorption of the air from alveoli distal to an obstructed bronchus. Obstructive atelectasis is usually focal. Atelectasis of premature infants, which is caused by a deficiency of pulmonary surfactant, is not shown
Causes of Neonatal Respiratory Issues... PREMATURE infant presents with grunting, flaring, retractions after birth...CXR = fine reticular granularity of the lungs, perihilar linear opacities... Treat with Steroids, CPAP, intubation, mechanical ventilation, and surfactant therapy...TTN is RDS in full term infants
Phosphatidylglycerol is a glycerophospholipid found in pulmonary surfactant. It is the precursor of surfactant and its presence (>0.3) in the amniotic fluid of the newborn indicates fetal lung maturity.