Comparison Between Laminaria and Extra Amniotic Salin Infusion (EASI) for Cervical Ripening

Labor induction for terminating pregnancy in term parturient with unripe cervix has been concerned for many years. Laminaria and Extra Amniotic Saline Infusion (EASI) have been used for labor induction. This study aimed to compare the efficacy of laminaria and EASI for a successful labor induction.Materials and Methods: In this double-blind clinical trial, 130 singleton term parturient (age 18-45) with unripe cervix were randomly allocated into two equal groups of intra cervically laminaria or EASI. Two groups were compared for induction time to the active phase of labor, induction time to the delivery, dilatation changes during the first 6 hours after intervention, type of delivery, Duration of hospitalization and adverse effects of two methods.Findings: Findings show that two groups were matched in terms of age, parity, gestational age, BMI, and initial dilatation and Bishop Score. There was a significant difference between two groups in Bishop Score and cervical dilatation 6 hours after induction which was higher in the EASI group. (P <0.0001). There was a significant difference between the two groups in terms of the interval between the onset of induction and the active phase of labor and the initiation of induction until delivery, which times were less in the EASI group (P<0.0001). The rate of cesarean section, placental abruption, and amniotic fluid meconium and fetal distress were not different in two groups. Hospital length of stay was shorter in EASI group (P<0.0001).Conclusion: The EASI method seems to be more effective than laminaria for cervical ripening. Given its feasibility and lower cost, it is suggested to be used for cervical ripening.

کلیدواژه ها:

Laminaria ، Extra Amniotic Saline Infusion ، Labor ، induction