Cervical Dilation At The Time Of Cesarean Section For Dystocia - Effect On Subsequent Trial Of Labor
ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA(2013)
摘要
Objective. To investigate the effect of cervical dilation at the time of cesarean section due to dystocia and success in a subsequent pregnancy of attempted vaginal delivery. Design. Retrospective study. Setting. University hospital in Copenhagen capital area. Population. All women with a prior cesarean section due to dystocia who had undergone a subsequent pregnancy with a singleton delivery during 20062010. Methods. Medical records were reviewed for prior vaginal birth, cervical dilation reached before cesarean section and induction of labor, gestational age, use of oxytocin, epidural anesthesia and mode of birth was collected. Results. A total of 889 women were included; 373 had had a trial of labor. The success rate for vaginal birth among women with prior cesarean section for dystocia at 48 cm dilation was 39%, but 59% for women in whom prior cesarean section had been done at a fully or almost fully dilated cervix (910 cm) (p < 0.001). Among the women with a previous vaginal delivery prior to their cesarean section, the success rate for vaginal birth was 76.2%, in contrast to 48.9% in the group without a previous vaginal delivery (p < 0.01). Conclusion. Women who had a trial of labor after a prior cesarean section for dystocia done late in labor and women with a vaginal delivery prior to their cesarean section had a greater chance of a successful vaginal birth during a subsequent delivery.
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关键词
Cervical dilation,cesarean section,dystocia,trial of labor,vaginal birth
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