Int J Womens Health. 2015 Nov 12;7:889-99. doi: 10.2147/IJWH.S62372. eCollection 2015.
A critical appraisal of the misoprostol removable, controlled-release vaginal delivery system of labor induction.
International journal of women's health
Charlotte Patte, Philippe Deruelle
Affiliations
Affiliations
- Lille University Hospital, Jeanne De Flandre Maternity, Université Lille 2, Lille, France.
- Lille University Hospital, Jeanne De Flandre Maternity, Université Lille 2, Lille, France ; UPRES EA 4489, Environnement périnatal et santé, Faculté de médecine Henri Warembourg, Université Lille 2, Lille, France.
PMID: 26648758
PMCID: PMC4648618 DOI: 10.2147/IJWH.S62372
Abstract
BACKGROUND: Induction of labor is a major issue in pregnancy management. Finding strategies to increase rate and decrease time to vaginal delivery is an important goal, but maternal or neonatal safety must remain the primary objective. Misoprostol is a synthetic analogue of prostaglandin used off label to ripen the cervix and induce labor. The misoprostol vaginal insert (MVI) was designed to allow a controlled-release delivery of misoprostol (from 50 to 200 μg) with a removal tape. The objective of this review was to make a critical appraisal of this device referring to the literature.
METHODS: A literature search was performed in the PubMed and Cochrane databases using the keywords "vaginal misoprostol insert".
RESULTS: Several studies compared different doses of MVI (50, 100, 150, and 200 μg) with the 10 mg dinoprostone insert. The 100 μg MVI compared with the dinoprostone vaginal insert (DVI) showed similar efficacy and no significant differences in cesarean delivery rate. MVI 200 μg compared with DVI showed a reduced time to vaginal delivery and oxytocin need but had an increased risk of uterine hyperstimulation. The rate of hyperstimulation syndrome was two to three times more frequent with the 200 μg MVI than the 100 μg.
CONCLUSION: Current data suggest that the 100 μg MVI would provide the best balance between efficacy and safety. Further studies should be performed to evaluate this dose, especially in high-risk situations needing induction of labor.
Keywords: efficacy; pregnancy; prostaglandins; safety
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