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利凡诺羊膜腔穿刺是传统的中期引产的方法,效果可靠,成功率高,但在临床应用的过程中仍存在很多不足:(1)引产者宫颈不成熟,宫颈扩张缓慢,产程长,容易引起宫缩乏力。(2)腹痛剧烈,时间长,患者痛苦大。(3)产后出血、宫颈裂伤及胎盘、胎膜残留等并发症发生率高。米非司酮是作用于受体水平的抗孕酮药,具有促进宫颈成熟的作用;羊膜腔注射利凡诺,
Rivanol amniocentesis is the traditional mid-term induction of labor, reliable, high success rate, but there are still many shortcomings in the clinical application of the process: (1) induced abortion of the cervix is not mature, cervical slow expansion, long process, easy Cause uterine atony. (2) severe abdominal pain, a long time, the patient painful. (3) postpartum hemorrhage, cervical laceration and placenta, fetal membranes and other complications high incidence. Mifepristone is an anti-progesterone agent that acts on the receptor level and has the effect of promoting cervical ripening; amniotic injection of rivanol,