产前出血

目的探讨前置胎盘类型、产前出血状况与妊娠结局的关系。

Objective To investigate the relationship between the types of placenta praevia , antepartum haemorrhage and clinical outcomes .

医源性早产中子痫前期，胎盘因素所致产前出血，胎儿窘迫，为其前三位主要原因。

The main first three causes of iatrogenic preterm birth were preeclampsia , vaginal bleeding caused by placenta previa and placental abruption , fetal distress in uterus .

其类型及产前出血状况不能预测其结局，也不能据此提前做出处理方案。

The number of bleeding episodes and the degree of praevia are not associated with outcomes , so they can 't be the proof to determine the treatment plan ahead of time .

结论前置胎盘产前大出血量不能以胎盘类型、胎盘附着位置及产前出血次数来预测。

Conclusion The type of placenta , the parts of placental attachment and time of massive hemorrhage do not affect the amount of antepartum hemorrhage in patients with placenta previa .