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Updated: Jul 5, 2026

Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus
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Meconium aspiration syndrome

Jeanne Ray Wiedemann1, Andrea M Saugstad, Laura Barnes-Powell

  • 1Level III NICU, Banner Children's Hospital, Mesa, Arizona, USA. jeannennp@yahoo.com

Neonatal Network : NN
|April 25, 2008
PubMed

Meconium aspiration syndrome (MAS) is one of the most common conditions associated with aspiration during the newborn period. MAS can be defined as respiratory distress in a neonate born through meconium-stained amniotic fluid (MSAE) with symptoms that cannot otherwise be explained. It can be characterized by early onset of respiratory distress in term and near-term infants delivered through MSAE. Early presentation includes respiratory symptoms such as respiratory distress, poor lung compliance, hypoxemia, and radiographic findings of hyperinflation and patchy opacifications. This article discusses the pathophysiologv of MAS, historical and current prevention strategies, current management strategies, and prognoses for infants born through MSAE.

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