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Updated: May 23, 2026

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
Published on: December 5, 2015
Types of maternal hypertensive disease and their association with pathologic lesions and clinical factors
Katherine F Maloney1, Debra Heller, Rebecca N Baergen
1Department of Pathology and Laboratory Medicine, Weill Cornell Medical College - New York Presbyterian Hospital, New York, New York, USA.
Insights
Hypertensive disorders in pregnancy, including chronic hypertension, gestational hypertension, and preeclampsia, share placental lesions. Gestational hypertension may present with less severe clinical outcomes.
Area of Science:
- Obstetrics and Gynecology
- Perinatal Medicine
- Pathology
Background:
- Hypertensive disease (HD) in pregnancy encompasses chronic hypertension (HTN), gestational hypertension (GH), and preeclampsia/eclampsia (PEC).
- Distinct clinicopathologic features among these HD subtypes remain understudied.
- Understanding these differences is crucial for accurate diagnosis and management.
Purpose of the Study:
- To compare clinicopathologic features across different types of hypertensive disease in pregnancy.
- To identify specific associations between HD subtypes and adverse pregnancy outcomes.
- To elucidate the relationship between clinical presentation and placental pathology in HD.
Main Methods:
- Retrospective analysis of clinicopathologic data from pregnant individuals with hypertensive disease and controls.
- Comparison of Apgar scores, intrauterine growth restriction (IUGR), and gestational age (GA) at delivery.
- Evaluation of placental lesions, including malperfusion, acute, and chronic lesions.
Main Results:
- Hypertensive disease was linked to lower Apgar scores, IUGR, and earlier GA.
- IUGR was less frequent in the GH group, while GA was lowest in the PEC group.
- Placental malperfusion lesions were common in HD; controls showed more acute lesions.
Conclusions:
- Gestational hypertension may be associated with less severe clinical disease compared to chronic hypertension and preeclampsia/eclampsia.
- Despite clinical differences, HD subtypes share similar placental pathologic features.
- Further research is warranted to refine the understanding and classification of hypertensive disorders in pregnancy.
Abstract:
Hypertensive disease (HD) during pregnancy includes chronic hypertension (HTN), gestational hypertension (GH), and preeclampsia/eclampsia (PEC). Differences between types of HD have not been well studied. Clinicopathologic features were compared between the HD groups and controls. HD was associated with lower Apgar scores, intrauterine growth restriction, IUGR, and delivery at an earlier gestational age (GA). IUGR was less common in the GH group, gestational age was lowest in the PEC. As expected, HD is associated with placental lesions of malperfusion, younger GA, and increased incidence of IUGR and controls showed less chronic and more "acute" lesions (ACA, MEC). Finally, comparisons of the HD groups showed differences only in GA and IUGR in the GH group as compared to the HTN and PEC groups. This suggests that GH may be associated with less severe clinical disease while showing similar pathologic features.
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