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Cervical ripening with oral misoprostol at term
A Beigi1, M Kabiri, F Zarrinkoub
1Department of Obstetrics & Gynecology, Arash Maternity Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Summary
A single oral dose of 200 mcg misoprostol effectively primes the cervix and induces labor at term. This method also significantly reduces cesarean delivery rates without increasing adverse maternal or neonatal outcomes.
Area of Science:
- Obstetrics and Gynecology
- Reproductive Medicine
Background:
- Cervical priming is crucial for successful labor induction.
- Oral misoprostol has shown potential for cervical ripening and labor induction.
Purpose of the Study:
- To evaluate the efficacy of a single 200 mcg oral dose of misoprostol for cervical priming in term pregnancies.
- To assess its impact on labor induction and delivery outcomes.
Main Methods:
- A double-blind, randomized trial involving 156 pregnant women at 37-42 weeks gestation with a Bishop score ≤5.
- Participants received either 200 mcg oral misoprostol or a placebo.
- Labor induction with oxytocin was initiated 12 hours post-medication if spontaneous labor did not commence.
Main Results:
- Misoprostol significantly improved Bishop scores compared to placebo (70% vs. 5%, P<0.001).
- Reduced induction rates, shorter intervals to uterine activity and delivery were observed with misoprostol (P<0.001).
- Cesarean delivery rates were significantly lower in the misoprostol group (P<0.001) with no increase in adverse maternal or neonatal outcomes.
Conclusions:
- A single 200 mcg oral dose of misoprostol is effective for cervical priming and labor induction at term.
- Oral misoprostol use can decrease the incidence of cesarean deliveries.