流体体积对应于每厘米的胎液指数在整个怀孕期间的变化:一个前性队列观察性研究
Edgar Hernandez-Andrade1, Kevin Magee2, Donatella Gerulewicz-Vannini1
1Department of Obstetrics, Gynecology and Reproductive Sciences, McGovern Medical School, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA.
Fetal diagnosis and therapy
|April 13, 2025
概括
在怀孕期间,每厘米羊水指数的羊水体积显著变化. 这意味着标准的胎液指数值可以代表不同妊娠年龄的不同液体体积.
科学领域:
- 产科和妇科 产科和妇科
- 胎儿医学 胎儿医学
- 生殖生物学 生殖生物学
背景情况:
- 正常的胎液指数 (AFI) 范围在5-24厘米之间.
- AFI值可能不准确地反映不同妊娠年龄的羊水体积.
- 了解妊娠年龄特定的AFI与体积的关系对于准确的胎儿评估至关重要.
研究的目的:
- 为了确定羊水的体积,对应的每厘米的AFI在不同的妊娠年龄.
- 量化怀孕期间AFI和羊水体积之间的关系.
主要方法:
- 一个前性队列观察性研究的二次分析,涉及连续的乳房输液 (AIs).
- 在怀孕10周至34周之间的19名胎儿进行了乳房输液注射.
- 使用输注液体体积和AI之前和之后的AFI变化计算每AFI厘米的液体体积.
主要成果:
- 每个AFI厘米的平均液体体积随着妊娠年龄显著变化 (例如,20周时25.08毫升,30周时40.61毫升).
- 在20至30周之间,每AFI厘米的液体体积增加了61%.
- 18厘米的AFI对应于20周的451.4毫升和30周的731.0毫升.
结论:
- 每个AFI厘米的羊水体积在整个妊娠期间是动态的.
- 基于固定的AFI值的Oligohydramnios或polyhydramnios诊断可能会由于体积的显著变化而导致误导.
- 在解释AFI时必须考虑妊娠年龄,以准确评估羊水体积.
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