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过期流产为病理性妊娠一种,诊断标准为胚胎死亡2周,表现为停经后出现腹痛或阴道不规则流血,及产前检查时发现妊娠停止进展。以往我院多采用钳刮术(孕周小于16周)和利凡诺羊膜腔穿刺注射及催产素等药物引产(孕周大于16周),这些方法手术操作技术要求较高,损伤也较大,并发症明显高于人工流产术。近年来,随着米非司酮合并前列腺素药物抗早孕在临床的成功应用,一些临床试验发现,这种联合用药方法对终止10～16周妊娠
Abortion is a pathological pregnancy, the diagnostic criteria for embryonic death for 2 weeks, manifested as abdominal pain or vaginal bleeding after menopause, and prenatal examination stopped the progress of pregnancy. In the past, the use of forceps curettage (gestational age less than 16 weeks) and rivanol amniocentesis and oxytocin and other drugs induced labor (gestational age greater than 16 weeks), these methods require higher surgical techniques and greater damage , Complications were significantly higher than abortion. In recent years, with mifepristone prostaglandin drugs combined with the successful clinical application of early pregnancy, some clinical trials found that this combination of drugs for the termination of 10 to 16 weeks of pregnancy