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Effect of Misoprostol Versus Oxytocin on Delivery Outcomes After Labour Induction in Pregnant Women: A Systematic Review and Meta-Analysis of Randomized Controlled Trials Publisher Pubmed



Ameri A1, 3 ; Jafariazar Z1, 4 ; Anabi M1, 3 ; Davari Dolatabadi M2
Authors

Source: European Journal of Obstetrics and Gynecology and Reproductive Biology Published:2024


Abstract

A large number of randomized controlled trials (RCTs) have been published on the effects of oral/vaginal misoprostol and oxytocin on delivery outcomes; however, data from these RCTs are conflicting. Although some meta-analyses summarized available findings in this regard, several eligible RCTs have been published since the release of those meta-analyses. Therefore, the current updated systematic review and meta-analysis of RCTs was conducted to compare the effects of oral/vaginal misoprostol and oxytocin on delivery and neonatal outcomes. A systematic search, using relevant keywords, was done in the online databases of PubMed/Medline, Scopus, and ISI Web of Science, up to April 2023, to identify eligible articles investigating the effect of oral/vaginal misoprostol and oxytocin on delivery outcomes including maternal [cesarean/vaginal delivery within 24 h after labour induction, Tachysystole, hypertonicity, hyper-stimulation, postpartum hemorrhage (PPH)] and neonatal outcomes [mean Apgar score, admission to neonatal intensive care unit (NICU), and death]. In total, 45 RCTs with a total sample size of 8406 participants were included. Meta-analysis revealed that vaginal misoprostol administration, compared with oxytocin, resulted in a significant reduction in the rate of cesarean and a significant increase in the rate of vaginal delivery and Tachysystole risk. Also, oral misoprostol was associated with a significant reduction in the rate of cesarean and a significant increase in the risk of hypertonicity compared with oxytocin. However, oral misoprostol had no significant effect on vaginal delivery compared with oxytocin. For other outcomes including hyper-stimulation, perinatal death, NICU admission, and mean Apgar score among newborns, we found no significant difference between oral/vaginal misoprostol and oxytocin. In total, vaginal/oral misoprostol might be a better method for labour induction compared with oxytocin. PROSPERO registration: CRD42023412325. © 2023 Elsevier B.V.
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