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计划分娩系因医学指征而适时终止妊娠或因社会因素而进行的择期引产。宫颈成熟度可直接影响计划分娩的成败。宫颈不成熟引产失败后的剖宫产率可达50%[1]。以往常用的促宫颈成熟和引产的药物主要有催产素和前列腺素E2,前者需静脉滴注及专人管理而显得麻烦,后者价格昂
Scheduled delivery is due to medical indications and timely termination of pregnancy due to social factors and elective induction of labor. Cervical maturity can directly affect the success of planned delivery. Cervical immature induction of labor fails after cesarean section rate of up to 50% [1]. In the past commonly used to promote cervical ripening and induction of drugs mainly oxytocin and prostaglandin E2, the former need intravenous drip and hand management seem cumbersome, the latter expensive