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Pre-eclampsia is a heterogeneous, multisystemic disorder characterized by the onset of hypertension (high blood pressure) and proteinuria (protein in the urine) in a pregnant women in the second half of her pregnancy.
A strategy of treating mild chronic hypertension in pregnant women using a blood pressure target of <140/90 mmHg reduces the risk of pre-eclampsia and does not increase the risk of poor fetal growth or fetal death.