辅助生殖技术助孕后妊娠早期出血风险预测模型的构建

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Construction of a risk prediction model for early pregnancy bleeding after assisted reproductive technology

ZHANG Youdi'，ZHAI Tiantian²，YINLixue1，REN Jing1，CUI Qianqian³，ZHAO Jinzhu1*

1.The First Hospital of Lanzhou University，Gansu 730oo China;2.The Second Hospital ofLanzhou University; 3.People's Hospital of Bayingol Mongolian AutonomousPrefecture

*Corresponding Author ZHAO Jinzhu，E-mail：qiesh @ 163.com

Keywordsinvitrofertilization;embryo transfer;threatenedabortion;vaginalbleeding;riskprediction;influencing factors

随着控制性卵巢过度刺激方案的改进、胚胎培养系统和胚胎冷冻保存技术等的发展，辅助生殖技术治疗成功率明显提高，但早期妊娠流产率仍高达 25%[1] 。（剩余6897字）