Abstract
Introduction: The role of aspirin in the primary or secondary prevention of preeclampsia has beenthe subject of numerous studies and great controversy. Our aim reports on LDA usage rates bywomen with an increased PE risk, as well as on determinants and reasons given for use and non‐use. Material and Method: In this multicenter, double-blind, placebo-controlled trial, the currentstudy randomly assigned 2100 women with singleton pregnancies who were at high risk for pretermpreeclampsia to receive aspirin, at a dose of 150 mg per day, or placebo from 11 to 14 weeks ofgestation until 36 weeks of gestation. The primary outcome was delivery with preeclampsia before37 weeks of gestation. The analysis was performed according to the intention-to-treat principle.Results: Preterm preeclampsia occurred in 13 participants (1.6%) in the aspirin group, as comparedwith 35 (4.3%) in the placebo group (odds ratio in the aspirin group, 0.38; 95% confidence interval,0.20 to 0.74; P=0.004). Results were materially unchanged in a sensitivity analysis that took intoaccount participants who had withdrawn or were lost to follow-up. Conclusion: This randomizedtrial showed that among women with singleton pregnancies who were identified using first-trimesterscreening as being at high risk for preterm preeclampsia, the administration of aspirin at a dose of150 mg per day from 11 to 14 weeks of gestation until 36 weeks of gestation resulted in asignificantly lower incidence of preterm preeclampsia than that with placebo.
Highlights
The role of aspirin in the primary or secondary prevention of preeclampsia has been the subject of numerous studies and great controversy
Preterm preeclampsia occurred in 13 participants (1.6%) in the aspirin group, as compared with 35 (4.3%) in the placebo group
A breakthrough in the acceptance of the beneficial effect of aspirin was achieved by Bujold et al.’s meta-analysis which focussed on the onset of aspirin use and which demonstrated that early start, at least before 16 weeks of gestation, had a beneficial effect
Summary
The role of aspirin in the primary or secondary prevention of preeclampsia has been the subject of numerous studies and great controversy. Material and Method: In this multicenter, double-blind, placebo-controlled trial, the current study randomly assigned 2100 women with singleton pregnancies who were at high risk for preterm preeclampsia to receive aspirin, at a dose of 150 mg per day, or placebo from 11 to 14 weeks of gestation until 36 weeks of gestation. Conclusion: This randomized trial showed that among women with singleton pregnancies who were identified using first-trimester screening as being at high risk for preterm preeclampsia, the administration of aspirin at a dose of 150 mg per day from 11 to 14 weeks of gestation until 36 weeks of gestation resulted in a significantly lower incidence of preterm preeclampsia than that with placebo.
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