两种浓度缩宫素用于延期妊娠促宫颈成熟及引产与宫颈形态的变化

目的:通过对延期妊娠孕妇静脉滴注0.2%与0.5%两种浓度缩宫素,比较其促宫颈成熟及引产效果和超声下宫颈形态的变化。方法:对227例孕41～41+6周延期妊娠孕妇随机分成两组,各静脉滴注1种浓度缩宫素,比较两种浓度缩宫素促宫颈成熟及引产效果。结果:宫颈Bishop评分<7分者,两种浓度缩宫素提高宫颈评分差异无统计学意义(P>0.05),宫颈Bishop评分≥7分者,两种浓度缩宫素分娩率差异有统计学意义(P<0.05),并与超声监测下宫颈形态变化呈一致性。结论:低浓度缩宫素能产生有效宫缩,促宫颈成熟引产安全有效。宫颈Bishop评分<7分者,0.2%缩宫素发生胎儿窘迫率低,可作为促宫颈成熟引产首选;宫颈Bishop评分≥7分者,0.5%缩宫素促宫颈成熟引产催产效果好。

Comparison of cervical ripening and induced labor effects and morphological changes of cervix for delayed pregnancy by using two different concentrations of oxytocin

Objective:To compare the cervical ripening and induced labor effects and morphological changes of cervix under the ultrasonography between 0.2% and 0.5% of oxytocin for delayed pregnancy by intravenous drip.Methods:227 cases of pregnancy of 41 ~ 41+6 week delayed first pregnancies were chosen and divided randomly into two groups,and the two groups were intravenous dripped by using two different concentrations of oxytocin.Cervical ripening and induced labor effects were compared.Results:For pregnancy with ce...