Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/81309
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Type: Journal article
Title: Prenatal administration of progesterone for preventing preterm birth in women considered to be at risk of preterm birth
Author: Dodd, J.
Jones, L.
Flenady, V.
Cincotta, R.
Crowther, C.
Citation: Cochrane Database of Systematic Reviews, 2013; 2013(8):1-5
Publisher: Update Software Ltd
Issue Date: 2013
ISSN: 1469-493X
1469-493X
Statement of
Responsibility: 
Dodd JM, Jones L, Flenady V, Cincotta R, Crowther CA
Abstract: BACKGROUND Preterm birth is a major complication of pregnancy associated with perinatal mortality and morbidity. Progesterone for the prevention of preterm labour has been advocated. OBJECTIVES To assess the benefits and harms of progesterone for the prevention of preterm birth for women considered to be at increased risk of preterm birth and their infants. SEARCH METHODS We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (14 January 2013) and reviewed the reference list of all articles. SELECTION CRITERIA Randomised controlled trials, in which progesterone was given for preventing preterm birth. DATA COLLECTION AND ANALYSIS Two review authors independently evaluated trials for methodological quality and extracted data. MAIN RESULTS Thirty-six randomised controlled trials (8523 women and 12,515 infants) were included. Progesterone versus placebo for women with a past history of spontaneous preterm birth Progesterone was associated with a statistically significant reduction in the risk of perinatal mortality (six studies; 1453 women; risk ratio (RR) 0.50, 95% confidence interval (CI) 0.33 to 0.75), preterm birth less than 34 weeks (five studies; 602 women; average RR 0.31, 95% CI 0.14 to 0.69), infant birthweight less than 2500 g (four studies; 692 infants; RR 0.58, 95% CI 0.42 to 0.79), use of assisted ventilation (three studies; 633 women; RR 0.40, 95% CI 0.18 to 0.90), necrotising enterocolitis (three studies; 1170 women; RR 0.30, 95% CI 0.10 to 0.89), neonatal death (six studies; 1453 women; RR 0.45, 95% CI 0.27 to 0.76), admission to neonatal intensive care unit (three studies; 389 women; RR 0.24, 95% CI 0.14 to 0.40), preterm birth less than 37 weeks (10 studies; 1750 women; average RR 0.55, 95% CI 0.42 to 0.74) and a statistically significant increase in pregnancy prolongation in weeks (one study; 148 women; mean difference (MD) 4.47, 95% CI 2.15 to 6.79). No differential effects in terms of route of administration, time of commencing therapy and dose of progesterone were observed for the majority of outcomes examined. Progesterone versus placebo for women with a short cervix identified on ultrasound Progesterone was associated with a statistically significant reduction in the risk of preterm birth less than 34 weeks (two studies; 438 women; RR 0.64, 95% CI 0.45 to 0.90), preterm birth at less than 28 weeks' gestation (two studies; 1115 women; RR 0.59, 95% CI 0.37 to 0.93) and increased risk of urticaria in women when compared with placebo (one study; 654 women; RR 5.03, 95% CI 1.11 to 22.78). It was not possible to assess the effect of route of progesterone administration, gestational age at commencing therapy, or total cumulative dose of medication. Progesterone versus placebo for women with a multiple pregnancy Progesterone was associated with no statistically significant differences for the reported outcomes. Progesterone versus no treatment/placebo for women following presentation with threatened preterm labour Progesterone, was associated with a statistically significant reduction in the risk of infant birthweight less than 2500 g (one study; 70 infants; RR 0.52, 95% CI 0.28 to 0.98). Progesterone versus placebo for women with 'other' risk factors for preterm birth Progesterone, was associated with a statistically significant reduction in the risk of infant birthweight less than 2500 g (three studies; 482 infants; RR 0.48, 95% CI 0.25 to 0.91). AUTHORS' CONCLUSIONS The use of progesterone is associated with benefits in infant health following administration in women considered to be at increased risk of preterm birth due either to a prior preterm birth or where a short cervix has been identified on ultrasound examination. However, there is limited information available relating to longer-term inf ant and childhood outcomes, the assessment of which remains a priority. Further trials are required to assess the optimal timing, mode of administration and dose of administration of progesterone the...
Keywords: Humans
Premature Birth
Progesterone
17-alpha-Hydroxyprogesterone
Prenatal Care
Pregnancy
Pregnancy, High-Risk
Female
Randomized Controlled Trials as Topic
Rights: Copyright © 2013 The Cochrane Collaboration
DOI: 10.1002/14651858.CD004947.pub3
Appears in Collections:Aurora harvest
Obstetrics and Gynaecology publications

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