Respiratory Disorders of the Newborn

Association between Low Cord Serum Cortisol Level and Transient Tachypnea of the Newborn in Late Preterm and Term Neonates Delivered by Elective Cesarean Section

“…5 The initiation and process of labor plays an important role in the antenatal redistribution and absorption of lung fluid, explaining, in part, the higher incidence of TTN following elective cesarean section (CS). 6 Neonates delivered by CS without labor have decreased catecholamine levels and an increased likelihood of developing transient tachypnea. 7 Fetal lung liquid is secreted at approximately 4 to 6 mL/kg/hour along an electrochemical gradient produced by the active pumping of chloride from the interstitium into the airspace.…”

“…The initiation and process of labor plays an important role in the antenatal redistribution and absorption of lung fluid, explaining, in part, the higher incidence of TTN following elective cesarean section (CS). 6 Neonates delivered by CS without labor have decreased catecholamine levels and an increased likelihood of developing transient tachypnea. 7…”