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Birth:能否在产前正确判断胎儿臀位可影响ECV技术成功率——队列研究

2015-05-21 MedSci MedSci原创

背景:外倒转术(ECV)降低足月新生儿臀位出生的机率,且能够有效降低产妇剖宫产的几率。现在ECV技术在英国的许多城市都得以应用,但其有效性是未知的。本研究的目的在于探讨胎儿臀位导致早产的原因。方式:该研究为回顾性队列研究,地点在英国一家大型妇幼保健院,研究对象为某一时段采用ECV技术并足月分娩的394例新生儿。实验在两个时间段进行:1998–1999年和2008–2009年.结果:仅有33.8%的

背景:
外倒转术(ECV)降低足月新生儿臀位出生的机率,且能够有效降低产妇剖宫产的几率。现在ECV技术在英国的许多城市都得以应用,但其有效性是未知的。本研究的目的在于探讨胎儿臀位导致早产的原因。




方式:
该研究为回顾性队列研究,地点在英国一家大型妇幼保健院,研究对象为某一时段采用ECV技术并足月分娩的394例新生儿。实验在两个时间段进行:1998–1999年和2008–2009年。

结果:
仅有33.8%的对产妇尝试使用ECV技术失败。这一几率低主要是因为27.9%的产妇于产前并不能诊断出胎儿臀位。其他导致失败的原因有:产科医生不会正确使用ECV技术(12.2%);产妇拒绝使用ECV技术(14%);产妇或胎儿存在某些禁忌症而不可使用ECV技术(10.7%)。间隔十年之后,产前未诊断出胎儿臀位的比率由之前的23.2%升至32.5%(p = 0.04),且十年后即2008-2009年期间再进行队列研究调查,发现对产妇尝试使用ECV技术失败率达52.8%。因产科医生不会正确使用ECV技术的比率由21.6%降至3%(p = 0.0001);拒绝使用ECV技术的产妇由19.1%降至9%(p = 0.005);总而言之,ECV尝试增多,由28.9%升至38.5%(p = 0.05)。

结论:

尽管现代对ECV技术的咨询介绍、推荐和尝试的比例都有所增加,产前未诊断出胎儿臀位是导致ECV不能正确使用的最大障碍。如何能够在产前正确诊断出胎儿臀位可对提高ECV技术的成功率起到至关重要的作用。

原始出处:

Hemelaar J1,2, Lim LN3, Impey LW4.The Impact of an ECV Service is Limited by Antenatal Breech Detection: A Retrospective Cohort Study.Birth. 2015 Jun;42(2):165-72. doi: 10.1111/birt.12162. Epub 2015 Apr 15.

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    2015-05-23 qilu_qi
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    2015-05-22 Dr.LV

    快失传了

    0

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