Pre-eclampsia and induction of labor: a randomized comparison of prostaglandin E2 as an intracervical gel, with oxytocin immediately, or as a sustained-release vaginal insert.
OBJECTIVE: Our purpose was to compare the efficacy of commercial prostaglandin E2 products, in combination with oxytocin, for the initiation of labor among pregnancies with pre-eclampsia. STUDY DESIGN: Patients with pregnancy-induced hypertension and with either proteinuria or other end-organ damage were enrolled if they had an unfavorable Bishop score (</=4) and were eligible to undergo labor. Each was randomly assigned to receive prostaglandin E2 either as a 0. 5-mg intracervical gel (Prepidil) or as a 10-mg controlled-release vaginal insert (Cervidil). Oxytocin was begun either immediately after instillation of the gel or was delayed until after removal of the insert. RESULTS: Of the 70 patients, there were no differences between the Prepidil (n = 34) and the Cervidil (n = 36) groups in maternal demographics, gestational age, parity, and predose Bishop score. There was a mean 14.3-hour difference in the duration from beginning therapy until vaginal delivery in the Prepidil group than in the Cervidil group (11.5 +/- 2.3 hours vs 25.8 +/- 6.9 hours, P <. 001). This time difference, which favored use of Prepidil-immediate oxytocin, remained significant after parity (nulliparous: 20 hours, P <.005; multiparous: 12 hours, P <.01) and gestational age were controlled (preterm: 15.5 hours, P <.01; term: 13.3 hours, P <.01). CONCLUSION: Use of combined intracervical prostaglandin E2 gel-immediate oxytocin therapy was more effective in shortening the induction-to-vaginal delivery time than use of a controlled-release prostaglandin E2 vaginal insert.[1]References
- Pre-eclampsia and induction of labor: a randomized comparison of prostaglandin E2 as an intracervical gel, with oxytocin immediately, or as a sustained-release vaginal insert. Hennessey, M.H., Rayburn, W.F., Stewart, J.D., Liles, E.C. Am. J. Obstet. Gynecol. (1998) [Pubmed]
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