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在产科学中目前存在的既是古老也是新的课题之一,就是开展妊娠期中胎儿——胎盘功能诊断的方法。近年,经Diezfalusy、中山等报道,己经明确了妊妇尿中排泄雌三醇(以下简称E_3,量可以反映胎儿——胎盘系统的功能。即尿中反映胎儿肾上腺和肝脏功能及胎盘芳香化功能的E_3,随妊娠进展而渐增,并于胎儿死亡前先行低下。直到分娩前E_3量仍在增加。E_3定量与其他类固醇激素定量相似须,有特殊的设备,熟练的技术,还很费时间,
One of the oldest and new topics that currently exists in obstetrics is the development of fetal-placental function diagnostics during pregnancy. In recent years, Diezfalusy, Zhongshan and other reports, have been clearly pregnant women excrete urine estriol (hereinafter referred to as E_3, the amount can reflect the function of the fetus - placenta system that reflects the fetal urinary fetal adrenal and liver function and placental aromatization Function E_3, with the progress of pregnancy and gradually increased, and before the death of the fetus before the low. E_3 until the amount before delivery is still increasing. E_3 quantitative similar to other steroid hormones to be required, with special equipment, skilled techniques, but also a fee time,