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Abstract

I n t r o d u c t i o n: Induction of labor is an intervention in the obstetrics, which aim is to achieve cervical ripening and stimulate contractions of uterus before beginning of labor. The purpose of our study was to evaluate efficacy of combinations of vaginal misoprostol, intracervical dinoprostone and Foley catheter at term with regard to mode of delivery and rate of emergency C-sections due to birth asphyxia. Ma t e r i a l a n d Me t h o d s: 403 singleton pregnant women, who underwent pharmacological labor induction at term, were reviewed. Patients were divided into 2 main cohorts due to beginning of induction algorithm: vaginal misoprostol (66) or intracervical dinoprostone (337) consisting of 3 subgroups — PGE2 alone (184), PGE2+Foley catheter (125), PGE2+Foley catheter+PGE1 (28). R e s u l t s: Comparison of maternal age, presence of cervical dilation and parity revealed no major differences between cohorts. Eff ectiveness of labor induction with misoprostol, dinoprostone and dinoprostone followed by Foley catheter were respectively 90.9%, 51.3%, and 82.8%. Addition of PGE1 was effective in 83% of patients with negative response to PGE2 followed by Foley catheter. There was no statistically significant diff erence in rate of C-sections between dinoprostone and misoprostol cohorts, C-section due to birth asphyxia were insignificantly more frequent in PGE1 than in PGE2 cohort. Efficacy in the subgroup administered only dinoprostone was significantly higher in 40th than in 41th (p = 0.016). C o n c l u s i o n s: Intracervical dinoprostone seems to be safer, but less effective in labor induction than vaginal misoprostol. Following PGE2 by other methods increased efficacy of induction in this cohort.
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