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[Efficacy of double-balloon catheter for cervical ripening and labor induction]
Li Zhang1, Xing-Hui Liu, Qiang Wei
1Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.
Objective:
To study the indication, efficacy, and safety of double-balloon catheter for cervical ripening and labor induction in term pregnant women.
Methods:
A total of 586 pregnant women using double-balloon catheters from May 2011 to October 2012 were divided into three groups according to their initial Bishop scores: group 1 (Bishop score < or = 3, n = 155), group 2 (Bishop score 4-5, n = 223) and group 3 (Bishop score > or = 6, n = 208). The control group (Bishop score > or = 6, n = 112) were directly given low-dose of oxytocin through continuous intravenous infusion for labor induction.
Results:
(1) The effective rate of cervical ripening and the success rate of vaginal delivery in group 1, 2 and 3 were gradually increased, with significantly differences among the three groups. The rate and the duration of oxytocin infusion were gradually decreased in group 1, 2 and 3, also with significantly differences. (2) The success rate of vaginal delivery in group 3 was significantly higher than that in control group. The average total labor stage of group 3 was significantly shorter than that of control group. The complications of mothers and fetus showed no significant difference between the two groups.
Conclusion:
The efficacy of double-balloon catheter for cervical ripening and labor induction was closely associated with the Bishop score. It is suitable in pregnant women with higher Bishop score.
