Bewley S, Robson S C, Smith M, Glover A, Spencer J A
Department of Obstetrics and Gynaecology, University College and Middlesex School of Medicine, London, UK.
Eur J Obstet Gynecol Reprod Biol. 1993 Dec 15;52(2):89-93. doi: 10.1016/0028-2243(93)90233-3.
External cephalic version (ECV) at > or = 37 weeks' gestation in suitable women with breech presentation was introduced in 1991 as a new management option at a University Teaching Hospital. After 16 months, the policy was audited by analysing a prospectively collected database of women offered ECV at term and by a retrospective review of all breech deliveries during the same period. A total of 52 women had ECV attempted with an immediate success rate of 46%. Four other cases had undergone spontaneous version by the time they attended for ECV. Of the remaining 72 breech deliveries, 49 were known to be breech and were not offered ECV; 39 of these had no contraindication (28% failure to offer ECV). Of the breech presentations, 22 remained undiagnosed until labour (18% of total study group). These results suggest that ECV at term can be introduced safely and without difficulty, with a strict protocol. Whilst the overall impact of ECV at term in clinical practice may be limited, if some vaginal breech deliveries and caesarean sections can be avoided it is a useful addition to the antenatal management of individual women with breech presentation.
1991年,一家大学教学医院引入了一项新的处理方案,即对妊娠≥37周、胎位为臀位的合适孕妇进行外倒转术(ECV)。16个月后,通过分析前瞻性收集的足月接受ECV的孕妇数据库以及回顾同期所有臀位分娩情况,对该政策进行了审核。共有52名妇女尝试进行ECV,即刻成功率为46%。另外4例在前来接受ECV时已自行转为头位。在其余72例臀位分娩中,49例已知为臀位且未接受ECV;其中39例无禁忌证(未提供ECV的比例为28%)。在臀位中,22例直至分娩时仍未被诊断出来(占整个研究组的18%)。这些结果表明,按照严格的方案,足月ECV可以安全且顺利地开展。虽然足月ECV在临床实践中的总体影响可能有限,但如果能避免一些阴道臀位分娩和剖宫产,对于个体臀位孕妇的产前管理来说,它是一种有益的补充。