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宫颈机能不全用线或带缝合关闭,已经使很多妊娠正常进行到足月。尽管如此,宫颈关闭可能仅是部分地成功,而胎儿仍然早产。作者观察到宫颈机能不全母亲所生的早产儿肺功能异常成熟,而与其他原因早产的婴儿肺成熟的情况进行了对比。作者在1969-1975年6年间,观察了患宫颈机能不全母亲,在妊娠24-33周分娩的19例早产儿。5例没有作环扎术,均有典型急产史,宫颈扩张5厘米或以上而无痛。1例在前次妊娠作了环扎术,
Cervical incompetence with a closed suture or thread, has a lot of pregnancy normal to full-term. However, cervical closure may only be partially successful, while the fetus is still premature. The authors observed abnormal lung function in preterm infants born to mothers with cervical incompetence and contrasted with the maturation of lungs in preterm infants of other causes. In the six years from 1969 to 1975, the authors looked at 19 preterm infants who had a cervical incompetence mother who gave birth between 24 and 33 weeks of gestation. 5 cases without cerclage, have a typical emergency history of cervical dilation of 5 cm or more without pain. 1 case of cerclage in the previous pregnancy,