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Meconium aspiration syndrome (MAS), also known as neonatal aspiration of meconium, is a medical condition affecting newborn infants. It describes the spectrum of disorders and pathophysiology of newborns born in meconium-stained amniotic fluid (MSAF) and have meconium within their lungs. Therefore, MAS has a wide range of severity depending on ...
At term mothers who experience a combination of pre-labor membrane ruptures and multiple invasive vaginal examinations, prolonged labor, or have meconium appear in the amniotic fluid are at higher risk than at term mothers experiencing just one of those events. [11] In other studies, smoking, alcohol use and drug use are noted as risk factors.
Meconium is the earliest stool of a mammalian infant resulting from defecation.Unlike later feces, meconium is composed of materials ingested during the time the infant spends in the uterus: intestinal epithelial cells, lanugo, mucus, amniotic fluid, bile, and water.
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It is characterized by changes in fetal movement, growth, heart rate, and presence of meconium stained fluid. [4] Risk factors for fetal distress/non-reassuring fetal status include anemia, restriction of fetal growth, maternal hypertension or cardiovascular disease, low amniotic fluid or meconium in the amniotic fluid, or a post-term pregnancy.
It has also been used to reduce the risk of meconium aspiration syndrome, though evidence of benefit is mixed. [2] [3] [4] The UK National Institute of Health and Clinical Excellence (NICE) Guidelines recommend against the use of amnioinfusion in women with meconium stained amniotic fluid (MSAF). [5]
Oligohydramnios – Low volume of amniotic fluid surrounding the fetus. It is associated with complications such as cord compression, abnormal heart rate, fetal acidosis, and meconium amniotic fluid. [10] Meconium aspiration syndrome – Respiratory compromise secondary to meconium present in infant's lungs. [11]
The U.S. Surgeon General's warning of an increased risk of cancer from drinking alcohol may end up resonating most with younger Americans - who in recent years were already turning to mocktails ...