利凡诺羊膜腔内注射是终止中期妊娠的首选方法,简单有效,但对于14~20周妊娠的效果不是很理想。我院对2005—2008年本院引产的孕14~20周的孕妇采用了3种方法引产进行比较,以探索一种简便、有效、安全、损伤小的引产方法,现报告如下。1临床资料1.1一般资料选择计划外妊娠或胎儿畸 Rivanol intra-peritoneal injection is the preferred method of termination of mid-term pregnancy, simple and effective, but for 14 to 20 weeks of pregnancy is not very satisfactory results. Our hospital on the 2005-2008 pregnant women in our hospital from 14 to 20 weeks of pregnancy using three methods of induction of labor for comparison, in order to explore a simple, effective, safe, less damage induced labor, are as follows. 1 Clinical data 1.1 General Information Select a planned pregnancy or fetal malformations