Conclusion The serum AFP and free-β-HCG levels of pregnant women are more effective in screening trisome fetus than PAPP-A+free-β-HCG. The serum screening of Down′s syndrome would be a practical method of preventing the congenital defect of fetus.
Conclusion The serum AFP and free-β-HCG levels of pregnant women are more effective in screening trisome fetus than PAPP-A+free-β-HCG. The serum screening of Down′s syndrome would be a practical method of preventing the congenital defect of fetus.
论血清标记物AFP+freeβHCG筛查三体综合征较PAPPA+freeβHCG好,唐氏综合征血清筛查是预测不良妊娠结局的有效指标,再结合产前诊断对防止先天缺陷有实用价值。