Husslein P, Salzer H, Simbrunner G
Zentralbl Gynakol. 1980;102(16):922-6.
The concentrations of surfactant obtained from dynamic measurement of surface tension of amniotic fluid as well as from amniotomy were determined for 26 births, all close to full term between 38th and 41st weeks of pregnancy). The compliance of the newborns' respiratory systems were postnatally established by means of the occlusion method. No pulmonary functionality was accurately identified from amniotic fluid in 92.3 per cent of all cases, and respiratory compliance was in good agreement with clinical symptoms in 25 of 26 newborns. All four cases of RDS were recorded from the group in which labour had been induced by amniotomy, with three of the four newborns weighing more than 2,500 g. These results are likely to show that RDS can develop even in infants born very close to full term and that the risk of RDS following induced labour is higher with significance than it would be following spontaneous onset of labour.
对26例分娩（均为妊娠38至41周接近足月的产妇）的羊水表面张力进行动态测量，并在人工破膜时获取表面活性剂浓度。通过闭塞法在出生后确定新生儿呼吸系统的顺应性。在所有病例中，92.3%的羊水样本未准确鉴定出肺功能，26例新生儿中有25例的呼吸顺应性与临床症状高度吻合。所有4例呼吸窘迫综合征（RDS）均出现在人工破膜引产的产妇组中，4例新生儿中有3例体重超过2500克。这些结果可能表明，即使是接近足月出生的婴儿也可能发生RDS，引产术后发生RDS的风险比自然分娩后显著更高。
