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胎盘放置在子宫下段没有前:产后出血风险?
Gabriel Bizet1, Elsa Saget1, Capucine Coulon2
1Univ. Lille, CHU Lille, Pôle Femme Mère Nouveau-né, Lille, France.
概括
胎盘位于子宫下部的位置不会增加产后出血 (PPH) 的风险. 这项研究发现,位于20-100毫米之间的胎盘与距离更远的胎盘的PPH率没有显著差异.
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
- 生殖健康 生殖健康
背景情况:
- 产后出血 (PPH) 是全球孕产妇死亡的一个重要原因.
- 了解胎盘位置对于预测和管理PPH风险至关重要.
研究的目的:
- 调查非先前胎盘放置在子宫下部段和PPH风险之间的关联.
- 为了确定位于子宫内骨100毫米以内的胎盘是否会增加PPH发生率.
主要方法:
- 观察性研究涉及560名孕妇接受第三个月的超声波检查.
- 胎盘与子宫下部的距离通过测量从膀到胎盘的距离 (PLA-B) 来近似得出.
- 适度的PPH定义为≥500毫升的血液损失;严重的PPH定义为≥1000毫升或输血.
主要成果:
- 38.6%的女性在下段有胎盘 (PLA-B <100毫米).
- 对于下段胎盘,没有观察到中度PPH (13.4%对16.3%) 或严重PPH (2.3%对4.9%) 的显著增加.
- 在不同值 (<40,<60,<80毫米) 的下段胎盘放置中,没有发现增加出血风险的趋势.
结论:
- 胎盘位于距离宫内骨20至100毫米之间的位置似乎不会增加PPH风险.
- 目前的发现表明,下子宫段的胎盘定位,如果不是先前,可能不是PPH的重要风险因素.
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