臀位外倒转术由于并发症发生率高,并且未能改善相对较高的自然回转率,其应用日见减少。至80年代,足月妊娠时臀位外倒转术的应用又得以恢复,其成功率为60％～70％,相应地减少了臀位产及因之而行的剖宫产数。 一些研究试图确定影响外倒转术成败的母儿因素,但大多数仅注重了某一因素的重要性,因而其研究结果常相互矛盾。作者通过回顾性分析,建立了一个预测外倒转术成功的评分系统,并对该系统进行了前瞻性检验。 资料来自南卡罗来那医科大学行外倒转术的108位单胎妊娠妇女。病人入院时行超声检查、NST及盆腔检查。确定胎位、羊水量,估计胎儿体重,以及发现明显的胎儿畸形和胎盘定位。胎盘位置分为:前壁、后壁、宫底及侧壁胎盘。NST Breech incitement surgery due to the high incidence of complications, and failed to improve the relatively high natural rate of rotation, its application day by day reduction. By the 1980s, the use of bard incontinence in full-term pregnancy was restored with a success rate of 60% to 70%, resulting in a reduction of cesarean delivery and consequent cesarean delivery. Some studies have attempted to identify maternal and child factors that influence the success or failure of external inversion, but most simply focus on the importance of a single factor and their results are often contradictory. Through retrospective analysis, the authors established a scoring system that predicts the success of external inversion surgery and prospectively tested the system. Data from the University of South Carolina Medical Outplacement in 108 singleton pregnant women. Patients admitted to hospital underwent ultrasound examination, NST and pelvic examination. Identify the fetus, amniotic fluid volume, estimated fetal weight, and found significant fetal malformations and placentation. Placenta location is divided into: the anterior wall, posterior wall, the bottom of the palace and the placenta. NST