动脉脉动指数参考范围的比较
J R Duncan1, L E Markel1, K Pressman1
1Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
概括
目前的动脉脉动指数 (UA-PI) 参考标准在预测小到妊娠年龄 (SGA) 和高风险怀孕的不良结果方面表现不佳. 需要进一步的研究来确定胎儿生长限制的可靠预测标志物.
科学领域:
- 围产儿医学 围产儿医学
- 胎儿超声波检查 胎儿超声波检查
- 孕产妇和胎儿医学 孕产妇和胎儿医学
背景情况:
- 胎儿生长限制 (FGR) 对新生儿构成重大风险.
- 动脉脉动指数 (UA-PI) 是用于评估FGR的超声波关键参数.
- 对于UA-PI,有几种参考标准存在,但它们的预测准确性受到争议.
研究的目的:
- 为了比较四个已建立的UA-PI参考标准的准确性.
- 评估它们在预测小到妊娠年龄 (SGA) 的有效性.
- 评估它们在患FGR.风险的怀孕中预测新生儿和产科不良结果的能力.
主要方法:
- 预期超声波研究的二次分析 (怀孕26至36周).
- 包括估计胎儿体重或腹围小于20个百分点的单独怀孕和可用的UA-PI.
- 四个UA-PI标准的预测精度 (AUC) 的比较 (Acharya等人,INTERGROWTH-21st,胎儿医学基金会,Parra-Cordero等人) 对于SGA,不良新生儿和产科并发症.
主要成果:
- 分析了207个怀孕;45.4%的SGA,24.2%的新生儿有不良后果,33.3%的产科并发症.
- 所有四个UA-PI参考标准都表现出统计学上显著但预测准确性不佳.
- 曲线下的面积 (AUC) 值在所有结果和标准中从0.55到0.60不等.
结论:
- 现有的UA-PI参考标准对SGA和风险妊娠的不良结果具有有限的预测价值.
- 目前,没有一个UA-PI参考标准在这些预测中表现优于其他标准.
- 需要进行更大规模的临床试验,以开发更准确的FGR和相关并发症预测工具.
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