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孕妇产前唐氏综合征筛查通常是指通过母血清标志物的检测来发现怀有先天缺陷胎儿,血清检测经济、简便和无创伤,筛查某些先天缺陷儿的,以便进一步明确诊断,最大限度地减少异常胎儿的出生率;通过羊水及脐带血进行染色体检查准确率高,但是由于羊水穿刺术易造成产妇流产以及细胞培养等检查的条件限制等因素往往不被患者接受。而使用血清标记物筛查的方法具有灵敏度高,低风险等优点,使得育龄产妇能够接受。
Prenatal screening for Down’s syndrome in pregnant women usually refers to the detection of maternal serum markers to detect congenital defects fetus, serum detection of economic, simple and non-invasive screening for some of the birth defects in order to further confirm the diagnosis, To minimize the birth rate of abnormal fetuses; the accuracy of chromosomal examination by amniotic fluid and cord blood is high, but factors such as amniocentesis and other conditions that can easily lead to abortion and cell culture examination are often not accepted by the patients. The use of serum markers screening method with high sensitivity, low risk, etc., making it possible for women of childbearing age to accept.