de Meeus J B, Ellia F, Magnin G
Department of Obstetrics, Gynaecology and Reproductive Biology, University Hospital of Poitiers, France.
Eur J Obstet Gynecol Reprod Biol. 1998 Oct;81(1):65-8. doi: 10.1016/s0301-2115(98)00149-3.
To determine if external cephalic version (ECV) is a reasonable alternative to repeat cesarean section in case of breech presentation.
Retrospective study of 38 women with one previous cesarean section and a breech presentation after 36 weeks of gestational age who have had at least one experience of ECV. Statistics used the Fisher's test with significance when P<0.05.
Version attempts were successful in 25 of the 38 women (65.8%). Seventy-six percent of the successful version women went on to have vaginal birth after cesarean section. A total of 19 successful vaginal deliveries occurred (50%). Success rate of ECV was lowered when breech was the indication of the previous cesarean section. The vaginal delivery rate was increased after successful ECV in patients previously vaginally delivered, but this difference did not reached significance (P=0.057). No maternal or neonatal complications occurred.
ECV is acceptable and effective in women with a prior low transverse uterine scar, when safety criteria are observed.
确定在臀位情况下，外倒转术（ECV）是否是重复剖宫产的合理替代方法。
对38例既往有一次剖宫产史且孕36周后为臀位、至少有一次ECV经历的女性进行回顾性研究。统计学采用Fisher检验，P<0.05时有显著性意义。
38例女性中有25例（65.8%）倒转尝试成功。成功倒转的女性中有76%在剖宫产术后经阴道分娩。共发生19例成功的阴道分娩（50%）。当既往剖宫产指征为臀位时，ECV成功率降低。既往经阴道分娩的患者在ECV成功后阴道分娩率增加，但差异无统计学意义（P=0.057）。未发生母体或新生儿并发症。
在遵守安全标准的情况下，对于既往有子宫下段横切口瘢痕的女性，ECV是可接受且有效的。
