Meconium aspiration syndrome (MAS, alternatively "Neonatal aspiration of meconium") is a medical condition affecting newborn infants. It occurs when meconium is present in their lungs during or before delivery. Meconium is the first stool of an infant, composed of materials ingested during the time the infant spends in the uterus.
Meconium is normally stored in the infant's intestines until after birth, but sometimes (often in response to fetal distress) it is expelled into the amniotic fluid prior to birth, or during labor. If the baby then inhales the contaminated fluid, respiratory problems may occur.
Read more about Meconium Aspiration Syndrome: Signs and Symptoms, Causes, Pathophysiology and Mechanism, Diagnosis, Prevention and Screening, Treatment, Prognosis, Epidemiology, History, Research Directions
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