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在可存活和非常早产低风险怀孕中生物物理特征的持续时间
Luis M Gomez1, Laura Willingham1, Jenny Wang1
1Department of Obstetrics and Gynecology, University of Tennessee Health Science Center, Memphis, TN.
American journal of obstetrics and gynecology
|March 25, 2024
概括
在可存活妊娠 (20-23周) 中,对生物物理特征 (BPP) 的监测可能需要超过30分钟,以获得8/8.8分. 延长观察时间确保在这些高风险病例中准确评估胎儿健康状况.
科学领域:
- 产周医学 产周医学
- 孕产妇和胎儿的医学
- 新生儿科学 新生儿科学
背景情况:
- 周产期活力已经转移到22周,需要改善胎儿监测.
- 产前干预措施可用于处于生命限度下分娩风险的胎儿.
- 生物物理概况 (BPPs) 在可存活妊娠 (20-23周) 中没有得到广泛研究.
研究的目的:
- 评估在非常早产的怀孕中在30分钟内完成BPP的可行性.
- 在怀孕20至31周的怀孕中,确定BPP得分为8/8所需的平均观察时间.
主要方法:
- 在怀孕20至31周的单独怀孕中对BPP的前性评估.
- 与对照组 (32-35周) 进行指示胎儿监测的比较.
- 排除有胎儿异常或特定医疗征兆的怀孕.
主要成果:
- 在孕期 (20-23周) 中,80%的孕妇在30分钟内达到8/8的BPP得分,平均时间为23.3分钟.
- 在可食用组中,延长观察 (长达43.6分钟) 的结果为97%,得分为8/8,没有不良结果.
- 第二组 (24-27周) 和第三组 (28-31周) 在30分钟内获得97-100%的8/8分.
结论:
- 在低风险的可存期怀孕中,可达到8/8的BPP得分,观察时间超过30分钟.
- 达到8/8的BPP得分的时间随着妊娠年龄的增长而减少.
- 建议根据妊娠年龄根据BPP完成调整观察时间.
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