妊娠期糖尿病(GDM)产妇有分娩巨大儿的危险。尽管经饮食和/或胰岛素治疗,仍有15％以上的GDM产妇将分娩巨大儿。如在妊娠中三月早期就能预测出可能发生GDM的产妇,可使其得到更早和更有效的治疗。曾有研究报道过妊娠中期羊水葡萄糖和胰岛素水平与妊娠期糖尿病之间的关系。本文采用病例-对照设计,测定妊娠中期羊水葡萄糖和胰 Gestational diabetes (GDM) is at risk of giving birth to a giant child. In spite of diet and / or insulin therapy, more than 15% of GDM mothers will give birth to large children. As in early March of pregnancy can predict the potential occurrence of GDM maternal, make it an earlier and more effective treatment. There have been reports of mid-second trimester amniotic fluid glucose and insulin levels and gestational diabetes mellitus. In this paper, a case-control design was used to measure amniotic fluid glucose and pancreatic fluid during the second trimester of pregnancy