An infant with severe aspiration who requires a breathing machine may have a more guarded outcome. Lack of oxygen in the uterus or from complications of meconium aspiration may lead to brain damage. Meconium aspiration rarely leads to permanent lung damage. Health Home Conditions and Diseases. Symptoms Bluish skin color in the infant Breathing problems Dark, greenish staining or streaking of the amniotic fluid or the obvious presence of meconium in the amniotic fluid Limpness in infant at birth Diagnosis Before birth, the fetal monitor may show a slow heart rate.
At birth, meconium can be seen in the amniotic fluid. The most accurate test to check for possible meconium aspiration involves looking for meconium staining on the vocal cords with a laryngoscope. Abnormal breath sounds, especially coarse, crackly sounds, are heard through a stethoscope. But these treatments weren't found to prevent MAS, so are not routinely done. Most infants with meconium aspiration syndrome recover completely. Some babies may have a higher risk of lung infections and wheezing, particularly in their first year of life.
Reviewed by: Jay S. Greenspan, MD. Neonatology at Nemours Children's Health. Larger text size Large text size Regular text size. What Is Meconium? What Is Meconium Aspiration Syndrome?
Meconium can make it harder to breathe because it can: clog the airways irritate the airways and injure lung tissue block surfactant, a fatty substance that helps open the lungs after birth With treatment, most babies with meconium aspiration syndrome get better with no problems. What Causes Meconium Aspiration Syndrome? Babies are more likely to pass meconium when: They've had a long or hard delivery. They are born past their due date. The mother has a health problem, like diabetes or high blood pressure.
The mother smoked or used drugs during the pregnancy. This is often due to problems with the placenta or the umbilical cord. Once the baby passes the meconium into the surrounding amniotic fluid, they may breathe it into the lungs. This may happen:. The meconium can also block the infant's airways right after birth. It can cause breathing problems due to swelling inflammation in the baby's lungs after birth. Most babies who have passed meconium into the amniotic fluid do not breathe it into their lungs during labor and delivery.
They are unlikely to have any symptoms or problems. Before birth, the fetal monitor may show a slow heart rate.
During delivery or at birth, meconium can be seen in the amniotic fluid and on the infant. The infant may need help with breathing or heartbeat right after birth. They may have a low Apgar score. The health care team will listen to the infant's chest with a stethoscope. This may reveal abnormal breath sounds, especially coarse, crackly sounds.
A special care team should be present when the baby is born if traces of meconium are found in the amniotic fluid. If the baby is active and crying, no treatment is needed. In most cases of meconium-stained fluid, the outlook is excellent and there are no long-term health effects.
MAS can be seen along with a serious problem with the blood flow to and from the lungs. This is called persistent pulmonary hypertension of the newborn PPHN. To prevent problems that lead to meconium being present, stay healthy during pregnancy and follow your health care provider's advice.
MAS; Meconium pneumonitis inflammation of the lungs ; Labor - meconium; Delivery - meconium; Neonatal - meconium; Newborn care - meconium. Ahlfeld SK. Respiratory tract disorders.
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