Archives of Gynecology and Obstetrics

, Volume 298, Issue 5, pp 881–887 | Cite as

Efficiency of the Foley catheter versus the double balloon catheter during the induction of second trimester pregnancy terminations: a randomized controlled trial

  • Gözde Demirezen
  • Berna Aslan ÇetinEmail author
  • Begüm Aydoğan Mathyk
  • Nadiye Köroğlu
  • Gökhan Yildirim
Maternal-Fetal Medicine



To compare induction-to-delivery intervals of Foley catheters and double balloon catheters in second trimester pregnancy terminations.


This randomized parallel study was conducted on women who underwent second trimester terminations between December 2016 and December 2017. Pregnant women in the second trimester with a Bishop score < 6 were included in the study. Participants were randomized into two groups, the first being the Foley catheter group and the second being the double balloon catheter group. The time frames from insertion of catheters to the delivery were recorded in each group. A multiple regression analysis was carried out to examine the contribution of factors to the induction-to-delivery interval. A survival analysis was conducted to compare the Foley method and the double balloon method.


A total of 91 pregnant women were included in the final analysis. The induction-to-delivery interval was shorter in the Foley catheter group than in the double balloon catheter group (38 h 54 min ± 21 h 6 min versus 58 h 17 min ± 25 h 56 min). We also found that women with intrauterine fetal death (IUFD) had a shorter time to delivery compared to women with live fetuses (39 h 12 min ± 18 h 46 min vs 51 h 30 min ± 26 h 42 min, p = 0.04). Women with a history of vaginal delivery also had a shorter induction-to-delivery time compared to women who never delivered vaginally before (38 h 12 min ± 17 h 42 min vs 53 h 54 min ± 27 h 18 min, p = 0.004). In the multiple regression analysis, the most significant contributor to the induction-to-delivery time was the method used for induction of labor and followed by other factors including the viability of the fetus (live/IUFD), history of vaginal delivery and PPROM. The survival analysis showed that the induction-to-delivery interval was significantly shorter in the Foley catheter group than in the double balloon catheter group (HR 2.51, 95% CI 1.57–4.00, p = 0.001).


During the termination of second trimester pregnancies time from induction of labor to delivery is shorter with the Foley catheter compared to double balloon catheter.


Second trimester Pregnancy termination Foley catheter Double balloon catheter 


Author contributions

GD: Data collection, manuscript writing. BAÇ: Manuscript writing, data analysis. BAM: Manuscript editing, data analysis. NK: Data collection. GY: Project development.

Compliance with ethical standards

Conflict of interest

The author declares that they have no conflict of interest.

Ethical approval

All procedures performed were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Obstetrics and Gynecology DepartmentTekirdağ State HospitalTekirdağTurkey
  2. 2.Department of Obstetrics and Gynecologyİstanbul Kanuni Sultan Süleyman Training and Research HospitalIstanbulTurkey
  3. 3.Division of Reproductive Endocrinology and Infertility, Obstetrics and Gynecology DepartmentUniversity of North CarolinaChapel HillUSA

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