低置胎盘

低置胎盘和α地中海贫血可能是糖代谢异常的危险因素。

Placenta previa and α - thalassemia may be risk factors for abnormal glucose metabolism .

低置胎盘和α地中海贫血在糖代谢不同组发生率有差异。

The incidence of placenta previa and α - thalassemia was different in different glucose metabolism groups .

结论：前置胎盘和低置胎盘是剖宫产术中大出血的主要原因，宫腔填塞纱条治疗剖宫产术中大出血有良好效果。

Conclusions : Low-lying placenta or placenta previa is the leading cause of major hemorrhage during cesarean section and uterine packing is useful in controling major postcesarean hemorrhage .

结果87例B超追踪检查到结束妊娠，2例低置胎盘，2例边缘性前置胎盘，3例部分性前置胎盘，5例对称的中央性前置胎盘。

Results Among the 87 lying in women traced by B ultrasonography examination , 2 were placenta lower , 2 were marginal placenta previa , 3 were partial placenta previa and 5 were complete placenta previa .

本组病例中未遇到低置型前置胎盘。

There were not low placenta praevia in these cases .