placental previa

( Conclusions) History of cesarean section, anterior placenta and parity ( especially more than three times) are high-risk ( factors) of massive PPH in complete placental previa.

结论剖宫产史、刮宫史（尤其>3次）及前壁胎盘是中央性前置胎盘剖宫产术中及术后大出血的高危因素。

Conclusion: To further reduce mortality of acute DIC of obstetric patients, prevention and treatment of primary diseases should be focused on such as placental abruption, placental previa, and postpartum hemorrhage, and early diagnosis and proper managements are necessary.

结论：产科急性DIC救治中，重视胎盘早剥、前置胎盘及产后出血等原发病的防治，早期诊断，正确规范治疗，可进一步降低该病死亡率。

We should maintain vigilance for patients with placental factors such as placenta previa and abruptio placentae.

有前置胎盘、胎盘早剥等胎盘因素孕产妇应警惕产后子宫出血.