Preinduction cervical ripening with prostaglandin E2 intracervical gel

Area of Science:

• Obstetrics and Gynecology
• Reproductive Medicine

Background:

• Cervical ripening is crucial for labor induction in patients with unfavorable Bishop scores.
• Prostaglandin E2 (PGE2) is a commonly used agent for cervical ripening.

Purpose of the Study:

• To evaluate the efficacy and safety of two doses of intracervical prostaglandin E2 gel for cervical ripening.
• To compare the effects of PGE2 gel with a placebo in patients with unfavorable Bishop scores.

Main Methods:

• A double-blind, placebo-controlled, dose-ranging study.
• Inclusion of patients with unfavorable Bishop scores.
• Administration of intracervical prostaglandin E2 gel or placebo.

Main Results:

• Significant improvements in Bishop score, cervical softening, time to labor, and time to delivery were observed in the PGE2 groups compared to placebo.
• Twenty-three of 30 treated patients experienced prolonged uterine contractions (>4 hours).
• Eight patients delivered during the observation period; one case of uterine hyperactivity and five cases of severe fetal heart rate decelerations were noted.

Conclusions:

• Intracervical prostaglandin E2 gel is efficacious for cervical ripening.
• Caution is recommended when using PGE2 gel in patients at risk for placental insufficiency due to potential adverse events.