Slow absorption of fetal lung fluid → decreased pulmonary compliance and tidal volume with increased dead space
Tachypnea after birth
Generally minimal oxygen requirement
Common in term infant delivered by Cesarean section or rapid second stage of labor
Chest x-ray (best test)—air-trapping, fluid in fissures, perihilar streaking
Rapid improvement generally within hours to a few days
Definition: Usually benign, self-limited dz w/ tachypnea that appears shortly after birth and usually clears w/i 1–5 d. Diagnosis of exclusion
Epidemiology: Incidence 11 per 1,000 live births M > F, infants born by C-section and those w/ perinatal asphyxia, umbilical cord prolapse, or certain maternal conditions (asthma, diabetes, or analgesia)
Pathophysiology: Cause is unknown; though 2/2 delayed resorption of fetal lung fluid may be 2/2 ↑ CVP and delayed clearance of pulmonary liquid by lymphatics
Diagnostic studies: CXR: Diffuse parenchymal infiltrates and fluid in the fissure
Management: Usually benign and management consists of adequate oxygenation