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由于对控制胎盘激素的合成与代谢知识的日渐增进,应用雌激素测定来估价妊娠情况有了进一步的认识。然而,若不全面估价,则在探索及处理高危妊娠时会反复出现各种问题。一、E_3激素测定法的估价由于胎儿死亡前常见雌三醇(E_3)水平降低(超过50%)或长期低于正常水平,及早处理或分娩可避免很多胎儿死亡。因而应用E_3测定法可作为估价胎儿健康状态的一辅助方法,可降低宫内胎儿死亡的发生率。但因E_3测定仅是许多预测胎儿健康状态方法之一,故对胎儿死亡率减少的真正价值则难予
Because of the increasing control of the synthesis and metabolism of placental hormones, the use of estrogen assay to assess the pregnancy has been further understanding. However, if not fully assessed, various problems recur in the exploration and management of high-risk pregnancies. E_3 Hormone Assay Estimation As a result of a reduction (more than 50%) of common estriol (E3) levels or a long-term subnormal level of fetal death, early fetal or childbirth can avoid many fetal deaths. Therefore, the application of E_3 assay can be used as an assessment of fetal health status of an auxiliary method, can reduce the incidence of intrauterine fetal death. However, since the E_3 assay is only one of many ways of predicting the fetal health status, the true value of reducing fetal mortality is difficult