当双胞胎B略大于双胞胎A时分娩的试验:一项丹麦前性队列研究
Mohammed R Khalil1, Diane Gorm Malberg-Pedersen1, Erling Andreasen1
1Department of Obstetrics and Gynecology, Lillebaelt University Hospital, Kolding, Denmark.
概括
在体重显著不一致的双胞胎怀孕中进行的一项分娩试验 (双胞胎B≥250g更重) 显示,紧急剖腹产或混合模式分娩的数量没有显著增加. 阴道分娩仍然是这些双胞胎怀孕的可行选择.
科学领域:
- 产科和妇科 产科和妇科
- 孕产妇和胎儿医学 孕产妇和胎儿医学
- 产周研究 产周研究
背景情况:
- 双胞胎怀孕管理指南通常基于有限的数据.
- 现有的研究结合了各种分娩方式,阻碍了对试验分娩结果的明确结论.
- 与双胞胎B比双胞胎A更重相关的特定风险需要进一步调查.
研究的目的:
- 为了评估分娩试验之间的关联期双胞胎怀孕与显著的体重不一致 (双胞胎B≥250g更重) 和不利的出生结果.
- 为了比较紧急剖腹产和异调和非异调双胞胎怀孕之间的混合模式出生率,经历了分娩的试验.
- 为管理双胞胎怀孕的临床决策提供基于证据的见解.
主要方法:
- 前性队列研究,包括怀孕≥37周的双胞胎怀孕,出生体重不一致率<25%.
- 对比59名B双胞胎女性的体重≥250克 (B双胞胎更大的组) 与243名对照组.
- 主要结局:紧急剖腹产和混合分娩;次要结局:产后出血,低Apgar分数和新生儿酸性.
主要成果:
- 紧急剖腹产率在双胞胎B较大的组 (29%) 与对照组 (19%) 的数字上更高,尽管在统计学上并不显著 (P=0.09).
- 混合模式出生率在两组之间相似 (8.5%对11.5%),没有统计学上显著的差异.
- 在二次新生儿结局中没有发现显著差异,包括Apgar分数和动脉pH值.
结论:
- 在双胞胎妊娠中,双胞胎B比双胞胎A重250g以上的分娩试验与混合模式分娩的临床显著增加无关.
- 观察到的紧急剖腹产数量的增加没有达到统计学意义,这表明阴道分娩不应违禁.
- 需要进行更大规模的研究来证实这些发现,并完善对体重不一致的双胞胎怀孕的管理建议.
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