Abstract：
Cervical cerclage is an established intervention for the management of pregnancies at high risk of preterm birth. Although studies exist to support its use in certain situations, particularly in singleton pregnancies, many questions such as adjunct therapies and efficacy in specific subgroups of high-risk women have not been fully elucidated. This review will assess the current evidence as well as areas where there is currently a paucity of data and an urgent requirement for further research.
摘要：
宫颈环扎术是早产高危妊娠的既定干预措施。尽管有研究支持其在某些情况下的使用，特别是在单胎怀孕中，许多问题,如辅助治疗和在高危女性特定亚组中的疗效尚未完全阐明.这篇综述将评估当前的证据以及目前缺乏数据和迫切需要进一步研究的领域。
