Navarro-Santana B, Duarez-Coronado M, Plaza-Arranz J
Ginecol Obstet Mex. 2016 Aug;84(8):507-13.
To analyze the rate of successful external cephalic versions in our center and caesarean sections that would be avoided with the use of external cephalic versions.
From January 2012 to March 2016 external cephalic versions carried out at our center, which were a total of 52. We collected data about female age, gestational age at the time of the external cephalic version, maternal body mass index (BMI), fetal variety and situation, fetal weight, parity, location of the placenta, amniotic fluid index (ILA), tocolysis, analgesia, and newborn weight at birth, minor adverse effects (dizziness, hypotension and maternal pain) and major adverse effects (tachycardia, bradycardia, decelerations and emergency cesarean section).
45% of the versions were unsuccessful and 55% were successful. The percentage of successful vaginal delivery in versions was 84% (4% were instrumental) and 15% of caesarean sections. With respect to the variables studied, only significant differences in birth weight were found; suggesting that birth weight it is related to the outcome of external cephalic version. Probably we did not find significant differences due to the number of patients studied.
For women with breech presentation, we recommend external cephalic version before the expectant management or performing a cesarean section. The external cephalic version increases the proportion of fetuses in cephalic presentation and also decreases the rate of caesarean sections.
分析我院外倒转术的成功率以及通过外倒转术可避免的剖宫产率。
收集2012年1月至2016年3月在我院进行的52例外倒转术的相关数据。收集的数据包括产妇年龄、外倒转术时的孕周、产妇体重指数（BMI）、胎儿种类和情况、胎儿体重、产次、胎盘位置、羊水指数（ILA）、宫缩抑制剂的使用、镇痛情况、出生时新生儿体重、轻微不良反应（头晕、低血压和产妇疼痛）以及严重不良反应（心动过速、心动过缓、减速和急诊剖宫产）。
45%的外倒转术未成功，55%成功。外倒转术后成功经阴道分娩的比例为84%（4%为器械助产），剖宫产率为15%。关于所研究的变量，仅发现出生体重存在显著差异；提示出生体重与外倒转术的结果相关。可能由于研究的患者数量原因，我们未发现其他显著差异。
对于臀位产妇，我们建议在期待治疗或剖宫产之前进行外倒转术。外倒转术可增加头位胎儿的比例，同时降低剖宫产率。
