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Time matters: Cervical ripening balloon for 6 versus 12 h-Retrospective comparison between two protocols
Inna Bleicher1,2, Michal Korobochka3, Shlomi Sagi1
1Department of Obstetrics and Gynecology, Bnai-Zion Medical Center, Haifa, Israel.
Summary
Removing a cervical ripening balloon (CRB) after 6 hours, instead of 12 hours, significantly reduces cesarean and instrumental delivery rates. This shorter duration is a potentially superior option for labor induction protocols.
Area of Science:
- Obstetrics and Gynecology
- Reproductive Medicine
Background:
- Cervical ripening balloons (CRBs) are used for labor induction.
- Previous studies suggest shorter CRB placement times may be beneficial.
- Optimal CRB duration for mode of delivery outcomes is not well-established.
Purpose of the Study:
- To compare the mode of delivery when a CRB is removed after 6 hours versus 12 hours.
- To evaluate the impact of CRB removal time on cesarean and instrumental delivery rates.
Main Methods:
- Historical control study comparing two groups: CRB removal after 12 hours and after 6 hours.
- Inclusion criteria: term pregnancies, singleton vertex presentation.
- Exclusion criteria: prior cesarean, failed prostaglandin ripening, contraindications to vaginal delivery.
Main Results:
- 1704 patients included: 914 in the 12-hour group, 717 in the 6-hour group.
- The 6-hour group showed significantly lower rates of cesarean delivery (22.5% vs 28.6%) and instrumental delivery (6.2% vs 12%).
- A higher rate of vaginal delivery within 24 hours was observed in the 6-hour group.
Conclusions:
- Removing a CRB after 6 hours is associated with reduced rates of cesarean and instrumental deliveries.
- A 6-hour CRB removal time is a reasonable and potentially superior alternative in labor induction protocols.
- Shorter CRB duration may optimize labor induction outcomes.
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