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Am J Obstet Gynecol. 2011 Jun;204(6):508.e1-7. doi: 10.1016/j.ajog.2011.01.065. Epub 2011 Mar 17.

Perinatal outcomes in women with preeclampsia and superimposed preeclampsia: do they differ?

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1
Division of Maternal-Fetal Medicine and Ultrasound, Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO, USA.

Abstract

OBJECTIVE:

The purpose of this study was to determine whether superimposed preeclampsia results in worse perinatal outcomes than preeclampsia.

STUDY DESIGN:

We conducted a retrospective cohort study using our perinatal database (1990-2008). Perinatal outcomes among women with chronic hypertension (n = 1032), superimposed preeclampsia (n = 489), and preeclampsia (n = 4217) were compared with outcomes of control subjects (n = 57,103). Outcomes among women with superimposed preeclampsia were also compared with outcomes of women with preeclampsia. Multivariable analysis was used to control for confounders.

RESULTS:

Rates of small-for-gestational age, abruption, stillbirth, and eclampsia were not significantly different with superimposed preeclampsia compared with preeclampsia. Delivery at <34 weeks' gestation (17.3% vs 8.7%; P < .001), cesarean delivery (46.2% vs 36.3%; P < .001), and neonatal intensive care unit admission (16.3% vs 11.4%; P < .002) were significantly higher among women with superimposed preeclampsia. These risks persisted after we controlled for confounders.

CONCLUSION:

Women with superimposed preeclampsia have higher risks of intervention-related events compared with those with preeclampsia.

PMID:
21419381
DOI:
10.1016/j.ajog.2011.01.065
[Indexed for MEDLINE]
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