胎儿的身体组成和器官生长在怀孕中复杂的第一个三个月的阴道出血状态:NICHD胎儿3D研究
Alexandra Jean-Louis1, Jessica L Gleason2, Zhen Chen3
1Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States.
American journal of perinatology
|August 14, 2025
概括
怀孕期间的头三个月阴道出血与胎儿腹部区域较小和脂肪减少,但小脑生长较大有关. 在某些情况下,肝脏体积也有所减少.
科学领域:
- 孕产妇和胎儿的医学
- 产前诊断 在产前诊断
- 胎儿发育研究研究 胎儿发育研究
背景情况:
- 第一个三个月的阴道出血是影响怀孕结果的常见并发症.
- 早期妊娠出血对胎儿生长和器官发育的影响需要进一步研究.
- 三维 (3D) 超声波为详细的胎儿生物识别提供了先进的功能.
研究的目的:
- 调查自我报告的第一季度阴道出血与胎儿身体组成和器官体积之间的关联.
- 通过3D超声波分析,分析第一季度出血的不同持续时间如何影响胎儿生长轨迹.
主要方法:
- 这项研究分析了NICHD胎儿3D研究中的2634例低风险单独怀孕的数据.
- 胎儿的身体组成 (手臂,腹部,大腿) 和器官体积 (小脑,肺,脏,肝脏) 在15-40周之间通过3D超声波测量了多达五次.
- 妇女根据第一季度出血日 (0,1,或>1天) 进行分类,并根据母亲和婴儿因素调整分析.
主要成果:
- >1天出血的母亲的胎儿在30-40周之间显示出更小的腹部区域和大腿体积 (脂肪和整体).
- 从母亲出生的胎儿中观察到小脑体积增加,母亲出血>1天 (35-40周).
- 在母亲出血1天 (26-35周) 的胎儿中,发现肝脏体积较小.
结论:
- 第一季度出血与胎儿生长的改变有关,包括减少腹部脂肪和特定器官体积变化.
- 这些发现表明,怀孕早期出血可能会影响胎儿发育轨迹.
- 3D超声波测量提供了有价值的见解,了解第一季度出血对健康的潜在长期影响.
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