Journal
JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE
Volume 27, Issue 6, Pages 561-565Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/14767058.2013.822483
Keywords
Alpha-fetoprotein; antiplatelet; aspirin; pregnancy outcome; uterine artery Doppler
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Background: To evaluate the effect of low-dose aspirin in prevention of adverse pregnancy outcomes (APO) in women with second trimester alpha-fetoprotein (AFP) >2.5 multiple of median (MOM) and to compare aspirin effect on women with normal and abnormal uterine artery (UtA) Doppler. The primary outcome was the adverse pregnancy outcome. Methods: This randomized controlled trial was conducted in singleton pregnant women, who had unexplained AFP >2.5 MOM and gestational age between 15 and 18 weeks of gestation. They were assigned randomly to receive either aspirin (N = 65) or control (N 68). UtA Doppler velocimetry studies were performed at the time of targeted ultrasonographic exam. Results: Two groups were comparable regarding the maternal characteristics. The frequency of APO in aspirin and control groups were 26.1% versus 44.1% (p = 0.045), the frequency of preterm delivery before 34 weeks were 3.2% versus 22.0% in aspirin and control group, p = 0.001. Other outcomes were similar in both groups. The frequency of adverse outcomes in women with abnormal UtA Doppler was 39.1% in aspirin and 60.0% in control group, p = 0.556. Conclusion: Low-dose aspirin reduces APO and delivery before 34 weeks of gestation in pregnant women with unexplained elevated AFP.
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