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Database - Alliance francophone pour l'accouchement respecté (AFAR)

Record ID : 1923
Created on : 30/03/2006
Modified on : 2/12/2007

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URL of this record : http://afar.info/id=1923

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Author(s) :

Bartusevicius A, Barcaite E, Nadisauskiene R.

Year of publication :


Bibliographical entry (without author) :

Oral, vaginal and sublingual misoprostol for induction of labor. Review. {Lituanie}. Int J Gynaecol Obstet. 2005 Oct;91(1):2-9.

Résumé (français) :

Abstract (English):

OBJECTIVE: To evaluate the effectiveness and safety of different administration routes of misoprostol for induction of labor.
METHOD: PubMed, Cochrane Library and EMBASE searches were carried out using the keywords oral, vaginal, sublingual, buccal, misoprostol, labor induction, identifying randomized case-controlled trials comparing different routes for giving misoprostol to induce labor, published in English between 1994 and 2004.

RESULTS: Seventeen studies (3549 participants) were included. Compared to vaginal administration, oral misoprostol was associated with higher failure rates for achieving vaginal delivery within 24 h (odds ratio (OR) 1.61, 95% confidence interval (CI) 1.23-2.10), higher rates of uterine hyperstimulation without fetal heart rate (FHR) changes (OR 2.21, 95% CI 1.12-4.34) and lower cesarean section rates (OR 0.74, 95% CI 0.56-0.97). A lower dose of oral misoprostol (50 microg) compared to the 25-50 microg administered vaginally was associated with a higher rate of vaginal delivery not being achieved within 24 h (OR 3.60, 95% CI 2.10-6.18), more need for oxytocin augmentation (OR 2.19, 95% CI 1.65-2.92), less uterine hyperstimulation both without FHR changes (OR 0.58, 95% CI 0.42-0.80) and with FHR changes (OR 0.34, 95% CI 0.17-0.67) and fewer cesarean sections (OR 0.69, 95% CI 0.51-0.91). Compared to vaginal administration, buccal misoprostol resulted in a higher rate of failure to achieve vaginal delivery after 24 h, more frequent uterine hyperstimulation and lower rates of cesarean section, but these differences were not significant. When 50 mug of misoprostol used sublingually was compared to oral administration, the sublingual misoprostol was associated with less failure to achieve vaginal delivery after 24 h, less oxytocin augmentation and reduced cesarean section, but none of the differences were statistically significant.

CONCLUSIONS: Vaginal misoprostol appears more effective than the equivalent dosage administered orally. However, the vaginal route appears to be associated with a higher risk of uterine hyperstimulation. Sublingual misoprostol seems an effective route of administration, but a lack of data necessitates more clinical trials to establish the effectiveness and safety of the buccal/sublingual route.

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Argument (English):

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Keywords :

c-section/caesarean ; induction of labor ; fetal distress ; duration of labour ; evidence-based medicine/midwifery ; misoprostol (Cytotec) ; oxytocin ; post-term pregnancy

Author of this record :

C. Loup

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