Abstract Background: Insufficient uterine activity or hypotonic uterine contraction is a common reason and the cause of abnormal labor progress that can be corrected with oxytocin. Realizing this fact that undue prolongation of labor may contribute to prenatal morbidity has resulted in using oxytocin infusion in different kinds of ineffective uterine contractions. Materials and methods: In this study, one hundred pregnant women in 29 Bahman hospital participated in a quasi-experimental research and were divided randomly into 2 groups of pulsatile induction as well as continuous induction and were compared in terms of pregnancy outcomes including progress of labor, hyperstimulation, mood of delivery, third stage duration, newborn’s Apgar score, and hyperbilirobinemia. Results: There were no significant differences between the two groups in progress of labor, hyperstimulation rate, newborn’s Apgar score, and hyperbilirobinemia (p>0.05) however, significant differences were observed in labor duration (p=0.022), mood of delivery (p=0.008), and dose of oxytocin (p<0.0005). Conclusion: According to the findings of this study, administration of oxytocin with the feedback pulsatile oxytocin system is easier and more physiologic to establish the effective uterine contraction and reduces duration of labor and cesarean section rate. Moreover, the average dose of oxytocin administered is significantly less in the pulsatile induction group.

Keywords: Oxytocin, Continuous induction, Pulsatile induction, Pregnancy outcomes

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