Retrospective cohort study shows chronic hypertension and past preeclampsia predict higher risk of superimposed preeclampsia.
Approximately half of the women with chronic hypertension developed superimposed preeclampsia. MAP ≥ 100 mmHg, the requirement of two or more antihypertensive agents, and a history of previous preeclampsia might be useful tools for predicting superimposed preeclampsia.
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Han-Idhikul et al. (2026) studied this question.
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