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Fetal Diagn Ther. 2012;31(3):141-6. doi: 10.1159/000336662. Epub 2012 Mar 21.

Early administration of low-dose aspirin for the prevention of preterm and term preeclampsia: a systematic review and meta-analysis.

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1
Department of Social and Preventive Medicine, Université Laval, Quebec City, Que., Canada.

Abstract

OBJECTIVE:

To compare the effect of early administration of aspirin on the risk of preterm and term preeclampsia.

METHOD:

A systematic review and meta-analysis of randomized controlled trials were performed. Women who were randomized to low-dose aspirin or placebo/no treatment at or before 16 weeks of gestation were included. The outcomes of interest were preterm preeclampsia (delivery <37 weeks) and term preeclampsia. Pooled relative risks (RR) with their 95% confidence intervals (CI) were computed.

RESULTS:

The search identified 7,941 citations but only five trials on a combined total of 556 women fulfilled the inclusion criteria. When compared to controls, aspirin initiated ≤16 weeks of gestation was associated with a major reduction of the risk of preterm preeclampsia (RR 0.11, 95% CI 0.04-0.33) but had no significant effect on term preeclampsia (RR 0.98, 95% CI 0.42-2.33).

CONCLUSION:

Low-dose aspirin administrated at or before 16 weeks of gestation reduces the risk of preterm but not term preeclampsia.

PMID:
22441437
DOI:
10.1159/000336662
[Indexed for MEDLINE]
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