الفهرس 
ANATOMY AND PHYSIOLOGYOnly 14 pages are availabe for public view
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Abstract
Background: Cervical Firmness and closeness are important throughout the whole pregnancy except for the few last weeks for the maintenance of pregnancy; whereas the improvement of natural childbirth depends on the ripening of the cervix. Induction of labor by using available, inexpensive and non-invasive methods with the least side effects is particularly important. The Primrose oil has prostaglandin effects and is applied to soften the cervix.
Objective: The aim of the study is to evaluate the effect of primrose oil for cervical ripening in term pregnancies.
Methods: This randomized control study was performed on total 40 non scarred uterus term pregnant women with gestational age 39 weeks or more at Ain Shams university maternity hospital in period between September 2023 to March 2024 with inclusion and exclusion criteria.
Results: There was a statistically significant difference between the 2 groups regarding Bishop score of the cervix, with higher bishop score in the study group (5.1 ± 2.5 vs 3.9 ± 2.34). There was a statistically significant difference between the 2 groups regarding mode of delivery, with higher percentage of successful vaginal deliveries (either spontaneous or through induction of labor) among Study (Primerose oil) group (85% vs. 65%). However, no statistically significant difference was found between 2 groups when comparing proportions of spontaneous delivery or induction of labor. There was no statistically significant difference between the 2 groups regarding Indication for CS. In spontaneous vaginal delivery cases, there was a highly significant difference between the 2 groups regarding duration of latent phase of labor in cases presented during the latent phase, with longer duration in control group vs study group (4.7±1.64 vs 2.25±1.38), however, there was no statistically significant difference between the 2 groups regarding duration of active phase of labor. There was no statistically significant difference between the 2 groups regarding induction doses required to induce labor, duration of latent phase, active phase and total delivery time in vaginal delivery with induction of labor.
Conclusion: As evident from the current study, vaginal application of primrose oil at a single dose of 1000 mg at 39 weeks gestation improved Bishop score and reduced parturition time in term pregnancies. These results suggest that the use of primrose oil as a cervical maturation agent could be considered in healthy term women who are scheduled for induction of labor to improve the success rate of vaginal delivery.