新生儿湿肺症又称新生儿暂时性呼吸困难症或新生儿暂时性呼吸增快症,是由于肺内液体过多所致的一种暂时性呼吸功能紊乱。目前认为其发病机理主要是肺内液体吸收延迟。湿肺症多见于自然分娩的足月男婴,出生时体重正常,不一定有窒息史,而在出生后6小时内出现气促或青紫,但一般情况良好。肺部阳性体征不多,而X线拍片显示肺部病变广泛,如肺泡积液、间质积液、叶间或胸腔积液、肺瘀血及肺气肿等,常在2～5日内消失。若无其他并发症,预后良好。近年来有人建议将完全无症状而仅有X线表现者 Newborn wet lung disease, also known as neonatal transient dyspnea or transient respiratory hyperactivity in neonates, is a temporary respiratory disorder caused by excessive fluid in the lungs. It is currently believed that the pathogenesis of pulmonary fluid absorption is mainly delayed. Wet lung disease more common in full-term natural childbirth baby boy, normal weight at birth, not necessarily the history of asphyxia, but within 6 hours after birth, shortness of breath or purple, but the general situation is good. Lung positive signs are small, and X-ray film showed extensive lung disease, such as alveolar fluid, interstitial fluid, interstitial or pleural effusion, pulmonary blood stasis and emphysema, often disappear within 2 to 5 days. Without other complications, the prognosis is good. In recent years it has been suggested that will be completely asymptomatic and only X-ray performance of those