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Published on: September 5, 2011
Preterm severe preeclampsia in singleton and twin pregnancies
D E Henry1, T F McElrath, N A Smith
1Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. dmhenry@partners.org
Summary
Twin pregnancies have a significantly higher risk of preterm delivery due to severe preeclampsia compared to singleton pregnancies. Clinical manifestations and diagnostic criteria for preeclampsia remain consistent across both groups.
Area of Science:
- Obstetrics and Gynecology
- Perinatology
- Maternal-Fetal Medicine
Background:
- Severe preeclampsia is a serious pregnancy complication.
- Understanding risk factors like multiple gestations is crucial for timely intervention.
- Preterm delivery is a common outcome for severe preeclampsia.
Purpose of the Study:
- To compare the rates of preterm delivery for severe preeclampsia in singleton versus twin gestations.
- To evaluate the clinical manifestations and diagnostic criteria of severe preeclampsia in both singleton and twin pregnancies.
Main Methods:
- Retrospective cohort study of 86,765 deliveries from 2000-2009.
- Inclusion of 3,244 twin deliveries for comparative analysis.
- Calculation of severe preeclampsia delivery rates at specific preterm gestational age windows (24-31+6 and 32-36+6 weeks).
Main Results:
- Twin pregnancies exhibited a significantly higher incidence of preterm severe preeclampsia (2.4% vs 0.4%, RR 5.70).
- This increased risk was observed in both early preterm (24-31+6 weeks) and late preterm (32-36+6 weeks) deliveries.
- Clinical manifestations (HELLP syndrome, abruption, growth restriction) and diagnostic criteria were comparable between singleton and twin pregnancies.
Conclusions:
- Twin gestations are at a substantially elevated risk for preterm delivery due to severe preeclampsia.
- The clinical presentation and diagnostic standards for severe preeclampsia do not differ between singleton and twin pregnancies.
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