No abstract

Objective: To compare the efficacy of misoprostol 50 µg vaginally and 50 µg sublingually for labor induction at term. Materials and Methods: One hundred and sixty women were randomized to receive misoprostol 50 µg vaginally (n = 80) or 50 µg sublingually misoprostol (n = 80). The doses were given every 4 h (maximum 6 doses). Primary outcome measure was number of cesarean deliveries. Induction to delivery time, delivery within 24 h, the number of misoprostol doses given; the need for oxytocin augmentation, tachysystole and uterine hyperstimulation rates and neonatal outcomes were secondary outcome measures. Results: The mean induction to delivery time was 748 ± 379 min in the vaginal group and 711 ± 425 in the sublingual group (p = 0.56). The number of women delivering within 24 h was 73 (91.3%) in the vaginal group and 74 (92.5%) in the sublingual group (p = 0.78). The mean number of misoprostol doses required was significantly higher in the sublingual group (1.9 ± 1.2) compared with the vaginal group (1.1 ± 0.4; p < 0.001). More women in the sublingual group experienced tachysystole (n = 14, 17.5%) compared with the vaginal group (n = 3, 3.8%; p = 0.005). Seven cases (8.8%) in the vaginal group and 12 cases in the sublingual group (15%) required emergent cesarean delivery for fetal heart rate abnormalities (p = 0.22). Other neonatal outcomes including umbilical artery pH, Apgar scores and intensive care unit admission were similar in the two groups. Conclusion: Sublingual misoprostol is as efficacious as vaginal misoprostol for induction of labor. More frequent tachysystole is observed with misoprostol 50 µg sublingually, but neonatal outcomes are similar.

Using vaginal misoprostol is an effective way of labor induction in term pregnant women with unfavorable cervices, since it is associated with a shorter duration of labor induction and higher rates of vaginal delivery within 12 h. Misoprostol and dinoprostone are equally safe, since misoprostol did not result in a rise in maternal and neonatal morbidity, namely, tachysystole, uterine hyperstimulation, cesarean section rates and admission to neonatal intensive care units as reported previously in literature.

Transvaginal Doppler examination can detect hemodynamic changes in uteroplacental circulation associated with subsequent adverse pregnancy outcome.

Real-time 3DUS is an accurate method that can be used for the diagnosis of congenital mullerian defects.