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[Induced labor with prostaglandin E2 gel after previous cesarean section]
O Behrens1, K Goeschen, H Jakob
1Frauenklinik der Medizinischen Hochschule Hannover.
Geburtshilfe Und Frauenheilkunde
|March 1, 1994
Summary
Inducing labor with prostaglandin-E2 gel for women with a previous Cesarean section is safe and effective, even with an unripe cervix. This method achieved high vaginal birth rates, with low complication rates, making it a viable option.
Area of Science:
- Obstetrics and Gynecology
- Reproductive Medicine
- Maternal-Fetal Medicine
Background:
- Increasing rates of Cesarean sections lead to a growing population of pregnant patients with prior Cesarean deliveries.
- Attempting vaginal birth after Cesarean (VBAC) is often considered, but cervical readiness is a key factor.
- The use of prostaglandins for cervical ripening in VBAC candidates with unfavorable cervices remains a subject of debate.
Purpose of the Study:
- To evaluate the safety and efficacy of prostaglandin-E2 gel for labor induction in patients with a previous Cesarean section and an unripe cervix.
- To determine vaginal delivery success rates and complication incidence in this specific patient group.
- To assess the impact of prior Cesarean reasons on VBAC success rates following induction.
Main Methods:
- Retrospective analysis of 385 trials involving 522 patients with previous Cesarean sections undergoing labor induction.
- Prostaglandin-E2 gel was administered for cervical ripening in patients with a Bishop score less than 8.
- Data on delivery mode, success rates based on prior Cesarean reasons, and maternal/fetal complications were analyzed.
Main Results:
- Vaginal delivery was achieved in 84.9% of patients undergoing labor induction after a previous Cesarean section, and 70% after two prior Cesarean sections.
- Highest success rates were observed after Cesarean for breech presentation; rates exceeded 60% even after Cesarean for cephalopelvic disproportion or failure to progress.
- Maternal and fetal complications occurred with similar frequency in both groups. Uterine ruptures (0.5%) were exclusively observed in patients not receiving cervical priming.
Conclusions:
- Intracervical prostaglandin-E2 gel application is a safe and effective method for labor induction in patients with a previous Cesarean section, particularly when the cervix is unripe.
- This method offers significant advantages for VBAC candidates with unfavorable cervical status, leading to successful vaginal deliveries.
- Careful consideration of contraindications supports the use of PGE2 gel as a viable induction strategy in selected VBAC patients.