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新生儿呼吸窘迫最常见的原因是在围产期发生吸入。这种小儿出生后立即出现呼吸急促(60次/分以上)、肋间隙凹陷、鼻扇、呼气时有鼾音、紫绀及肺部X线出现不均匀的斑片状阴影等。这些情况称为围产期吸入综合征(简称PAS)。吸入物以羊水为多见。如吸入的羊水污染了细菌.可发生吸入性细菌性肺炎。如吸入的羊水被胎粪污染、约有10～35％小儿发生胎粪吸入综合征(简称MAS)。MAS多发生在足月或过期妊娠或胎儿体重超过2,500克者。这种新生儿指甲过长,表皮剥脱、面容
The most common cause of neonatal respiratory distress is inhalation during the perinatal period. This baby immediately after birth, shortness of breath (60 beats / min), intercostal space depression, nasal fans, snoring sound when exhaled, cyanosis and pulmonary X-ray uneven patchy shadows appear. These conditions are called perinatal aspiration syndrome (PAS). Amniotic fluid inhalation is more common. Aspiration of amniotic fluid contaminated bacteria. Inhalation of bacterial pneumonia can occur. If inhaled amniotic fluid is meconium-stained, about 10 ~ 35% of children with meconium aspiration syndrome (MAS). MAS occurs in more than full-term or out-of-pregnancy or fetuses weighing more than 2,500 grams. This newborn nails too long, skin exfoliation, face