Induction of labor with vaginal misoprostol plus oxytocin versus oxytocin alone

Osman Balci, Alaa S Mahmoud, Suna Ozdemir, Ali Acar
International Journal of Gynaecology and Obstetrics 2010, 110 (1): 64-7

OBJECTIVE: To compare the effect of an oxytocin infusion alone or preceded by an intravaginal application of misoprostol for labor induction in women with term pregnancies and a low Bishop score.

METHODS: This study randomized 100 multiparous women with singleton pregnancies over 38 weeks and a Bishop score less than 6 to receive either a single 50-microg dose of misoprostol intravaginally 3 hours before initiation of the oxytocin infusion or only an oxytocin infusion. The time from induction to delivery, the route of delivery, and maternal and fetal outcomes were analyzed.

RESULTS: The mean time from induction to delivery was 9.36+/-1.97 hours in the misoprostol plus oxytocin group and 11.08+/-3.23 in the oxytocin alone group (P=0.002). The rates of vaginal delivery, 1- and 5-minute Agpar scores, placental abruption, and postpartum hemorrhage were similar between the 2 groups, as were the rates of admission to the neonatal intensive care unit. There were no cases of perinatal asphyxia.

CONCLUSION: A 50-microg intravaginal application of misoprostol before starting the oxytocin infusion is a more effective method of labor induction than an oxytocin infusion alone for our study population.

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