胎粪吸入综合征是胎儿在分娩过程中将有胎粪污染的羊水吸入呼吸道,出生后发展为进行性呼吸障碍,严重者合并肺炎、气胸、持续胎儿血循环,甚至发生中枢神经障碍,重症者病死率很高。羊水中混有胎粪是胎儿宫内窘迫的表现之一。胎粪排出可为生理性或缺氧后迷走神经兴奋所致,缺氧越重,排出越多。胎粪稠, Meconium aspiration syndrome is the fetus in the delivery process will have meconium-stained amniotic fluid inhalation of the respiratory tract, after birth developed into progressive respiratory disorders, severe pneumonia, pneumothorax, continuous fetal blood circulation, and even central nervous system disorders, severe cases of death High rate. Amniotic fluid mixed with meconium is one of the manifestations of fetal distress. Meconium excretion can be caused by physiological or hypoxic vagus nerve excitability, the more hypoxia, discharge more. Meconium thick,