Management of Meconium Aspiration Syndrome
Initial Assessment and Management
- Routine tracheal intubation and suctioning is no longer recommended for nonvigorous infants born through meconium-stained amniotic fluid, as it likely delays ventilation without improving outcomes, according to the American Heart Association 1, 2
- For infants born through meconium-stained amniotic fluid, a team skilled in tracheal intubation should be present at delivery due to increased risk of requiring resuscitation, as recommended by the American Heart Association 3, 4
- If the infant is vigorous, allow the infant to remain with the mother and receive routine newborn care, as suggested by the American Heart Association 3, 4
- Gentle clearing of meconium from the mouth and nose with a bulb syringe may be done if necessary, according to the American Heart Association 3, 4
- For nonvigorous infants, proceed with appropriate resuscitation measures without routine immediate direct laryngoscopy and tracheal suctioning, as recommended by the American Heart Association 1, 2
- Intubation and suctioning should be considered only if there is evidence of airway obstruction, according to the American Heart Association 2, 4
Respiratory Support
- Use pulse oximetry to guide oxygen therapy when resuscitation is anticipated, when positive pressure ventilation is administered, when central cyanosis persists beyond 5-10 minutes, or when supplementary oxygen is administered, as recommended by the American Heart Association 3, 4
- For term infants, initiate resuscitation with room air, according to the American Heart Association 3, 4
- For ventilated infants with MAS, consider positive end-expiratory pressure (PEEP) to assist in establishing functional residual capacity, as suggested by the American Heart Association 1, 5