胎粪吸入综合征(meconium aspiration syndrome,MAS)常见于足月儿或过期产儿,系胎儿在产前或产时吸入被胎粪污染的羊水,导致呼吸道和肺泡机械性阻塞、肺泡表面活性物质失活及肺组织化学性炎症反应,主要表现为呼吸窘迫,同时伴其他脏器受损的一组综合征。随着围产医学的发展,近年来MAS发病率有所下降,但重症患儿病情重、并发症多、预后差,仍是导致足 Meconium aspiration syndrome (MAS) is common in term infants or expired infants, who fetate meconium-contaminated amniotic fluid during prenatal or prenatal periods, resulting in mechanical obstruction of the airway and alveoli, loss of alveolar surfactant Live and lung tissue chemical inflammatory response, mainly manifested as respiratory distress, accompanied by a group of other organ damage syndrome. With the development of perinatal medicine, the incidence of MAS has decreased in recent years, but severe cases of severe illness, complications and poor prognosis, is still leading to foot