title: [Efficacy of double-balloon catheter for cervical ripening and labor induction].
abstract: 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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
authors.forename: Xing-Hui
authors.initials: XH
authors.lastname: Liu
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wei
authors.forename: Ce
authors.initials: C
authors.lastname: Bian
authors.forename: Bing
authors.initials: B
authors.lastname: Peng
authors.forename: Qiang
authors.initials: Q
authors.lastname: Yao
mesh_terms: D000328:Adult; D002404:Catheterization / Q000379:methods*; D057785:Catheters; D020070:Cervical Ripening; D005260:Female; D006801:Humans; D007751:Labor, Induced / Q000295:instrumentation* / Q000379:methods*; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D055815:Young Adult