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目的：观察米非司酮及宫颈扩张棒的配伍能否促进卡孕栓中期妊娠引产效果。方法：８４名孕１３～２６周妇女随机分别予以单独卡孕栓，或配伍米非司酮或宫颈扩张棒行中期引产。结果：预先口服２００ｍｇ米非司酮较之单用卡孕栓的引流产时间明显缩短［１０．８ｈ（３．６～２６．７ｈ）及１６．２ｈ（９．０～３４．６ｈ），Ｐ＜０．０ｌ］；卡孕栓用量明显减少［４ｍｇ（１～６ｍｇ）及５ｍｇ（３～９ｍｇ），Ｐ＜０．０１］；胃肠反应减轻。而宫颈扩张棒预先放置无明显促进作用。结论：米非司酮是卡孕栓中期妊娠引产的有效配伍药物。
Objective: To observe whether the combination of mifepristone and cervical dilation stick can promote the induction of labor during the second trimester pregnancy. Methods: Eighty-four women, aged 13-26 weeks, were randomized to receive either maze plug alone or mid-term labor with mifepristone or cervical dilatation stick. Results: The pre-oral administration of 200 mg mifepristone was significantly shorter than that of carbamazepine alone [10.8h (3.6-26.7h) and 16.2h (9.0-34.6h), P <0.0l]; significantly reduced the amount of carboplatin [4mg (1 ~ 6mg) and 5mg (3 ~ 9mg), P <0.01]; reduce gastrointestinal reactions. The pre-placed cervical dilatation rod no significant role in promoting. Conclusion: Mifepristone is an effective and compatible drug for the induction of labor during the second trimester pregnancy of carbamazepine.