Aim: Gestational hypertension is a common disorder of pregnancy. This study aims to evaluate the effect of labor induction with dinoprostone vaginal suppositories (Propess) on pregnancy outcomes in pregnant women with gestational hypertension. Methods: The retrospective study included 375 patients with gestational hypertension. All patients were included into three groups according to the characteristics at admission. Women who had initiated labor spontaneously at admission were enrolled in Spontaneous labor group. According to Bishop score, other patients underwent labor induction with Propess or oxytocin were enrolled in Propess group or Oxytocin group. Demographic information and perinatal outcome data were collected. Results: The vaginal delivery rate of the women with gestational hypertension was respectively 93.5% (Spontaneous labor group), 77.0% (Propess group), and 52.5% (Oxytocin group) in three groups with significant difference (P < 0.001). The duration of labor was 8.29 AE 3.70 h (Spontaneous labor group), 8.45 AE 5.21 h (Propess group) and 12.37 AE 11.47 h (Oxytocin group) in three groups, respectively. No differences were found in the intrapartum fever (P = 0.588), intrapartum hemorrhage (P = 0.953), intrapartum maximum blood pressure (P = 0.301 and P = 0.535) and post-partum hemorrhage (P = 0.075) among three groups. Neonatal outcomes were similar among three groups (Neonatal hospitalization rate, P = 0.437; 1-min Apgar score, P = 0.304; 5-min Apgar score, P = 0.340; Birth weight, P = 0.089). No poor maternal and neonatal outcomes occurred. Conclusion: Pregnant women with gestational hypertension could have favorable pregnancy outcomes. Using Propess as a mode of labor induction in gestational hypertension is safe and effective, without increasing intrapartum blood pressure and inducing poor pregnancy outcomes.*P < 0.05 comparison between Spontaneous labor group and Oxytocin group.; **P < 0.05 comparison between Spontaneous labor group and Propess group.; ***P < 0.05 comparison between Oxytocin group and Propess group.; P value, comparison between three group by One-way analysis of variance. and DBP, diastolic blood pressure; SBP, systolic blood pressure.

The perinatal outcomes of dinoprostone for induced labor are comparable between the two groups. Gestational hypertension and birth weight are factors related to outcomes of cesarean section in the borderline group.

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