Riskin-Mashiah S, Wilkins I
Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA.
Obstet Gynecol Clin North Am. 1999 Jun;26(2):243-57. doi: 10.1016/s0889-8545(05)70072-3.
Induction of labor is indicated when the benefits to either the mother or the fetus outweigh the benefits of continuing the pregnancy. The state of the cervix is clearly related to the success of labor induction and the duration of labor. In cases of unfavorable cervices, physicians usually use a ripening agent before inducing labor. Unfortunately, as reviewed in this article, the ideal ripening agent is not found yet. No method of cervical ripening has shown a consistent and significant reduction in CS rate. In fact, women with the most unfavorable cervices (Bishop score, < or = 2) still face high rates of induction failure and CS.
当对母亲或胎儿的益处超过继续妊娠的益处时，就需要引产。宫颈状态与引产成功率及产程明显相关。对于宫颈条件不佳的情况，医生通常在引产之前使用促宫颈成熟药物。遗憾的是，正如本文所综述的，尚未找到理想的促宫颈成熟药物。没有一种宫颈成熟方法能持续且显著降低剖宫产率。事实上，宫颈条件最差（Bishop评分≤2分）的女性仍面临着较高的引产失败率和剖宫产率。
