A Pilot Randomized Trial Comparing the Effects of 80 versus 160 mg of Aspirin on Midtrimester Uterine Artery Pulsatility Index in Women with a History of Preeclampsia
| Autor: | Emmanuel Bujold, Sylvie Tapp, Stéphanie Roberge, Ema Ferreira, Grégoire Leclair, Paul Guerby, Stéphane Côté, Mario Girard |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Canada Randomization Pilot Projects Bedtime Ultrasonography Prenatal law.invention Preeclampsia 03 medical and health sciences 0302 clinical medicine Randomized controlled trial Pre-Eclampsia law Pregnancy medicine.artery medicine Humans 030212 general & internal medicine Uterine artery reproductive and urinary physiology Aspirin 030219 obstetrics & reproductive medicine Fetal Growth Retardation Dose-Response Relationship Drug Obstetrics business.industry Infant Newborn Pregnancy Outcome Obstetrics and Gynecology medicine.disease Uterine Artery Treatment Outcome Pregnancy Trimester Second embryonic structures Gestation Female business Platelet Aggregation Inhibitors medicine.drug |
| Zdroj: | Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC. 42(12) |
| ISSN: | 1701-2163 |
| Popis: | Objective To compare the effects of 80 mg and 160 mg of aspirin, initiated in the first trimester of pregnancy, on mid-trimester uterine artery pulsatility index (UtA-PI) in women with a history of preeclampsia. Methods We performed a pilot double-blind randomized controlled trial. Pregnant women with a history of preeclampsia were recruited between 100/7 and 136/7 weeks gestation and randomly assigned to take either 80 or 160 mg of aspirin daily at bedtime from randomization to 356/7 weeks gestation. The primary outcome was mean UtA-PI at 22–24 weeks. Secondary outcomes included the rate of fetal growth restriction and preeclampsia, stratified as term (≥37 weeks), preterm ( Results A total of 107 participants were randomized, including 41 (38%) with a history of preterm preeclampsia and 16 (15%) with a history of early-onset preeclampsia. We observed no significant difference in mean UtA-PI at 22–24 weeks between the 2 groups (0.97; 95% CI 0.88–1.05 vs. 0.97; 95% CI 0.88–1.07, P = 0.9). The rates of fetal growth restriction (8% vs. 2%; P = 0.20); preeclampsia (12% vs. 15%; P = 0.78), preterm preeclampsia (4% vs. 2%; P = 0.56), and early-onset preeclampsia (0% vs. 2%; P = 0.52) were similar in both groups. No serious adverse events associated with the study treatment were reported. Conclusion We observed no significant difference in UtA-PI between the two doses of aspirin, but we observed low rates of fetal growth restriction and preterm and early-onset preeclampsia (all less than 5%). The benefits of aspirin for the prevention of preterm preeclampsia is probably not related to the improvement of deep placentation alone. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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