胎粪吸入综合征(meconium aspirationsyndrome,MAS)是由于胎儿在宫内或娩出过程中将胎粪排入羊水,吸入被胎粪污染的羊水后出现气道阻塞、肺内炎症和一系列全身症状,多见于足月儿和过期产儿。据统计,MAS发病率占活产新生儿的1.2％～2.2％。国内报告病死率为7％～15.2％。 Meconium aspirations syndrome (MAS) is a result of airway obstruction, inflammation in the lungs and a series of systemic symptoms caused by the fetus discharging meconium into amniotic fluid during intrauterine or intrauterine delivery, inhalation of amniotic fluid contaminated with meconium, More common in term infants and expired children. According to statistics, the incidence of MAS accounted for 1.2% of live births to 2.2% of newborns. The domestic report case fatality rate is 7% ~ 15.2%.