What is the recommendation for pregnant women with chronic hypertension?
Offer antihypertensive treatment to pregnant women who have chronic hypertension and who are not already on treatment if they have: sustained systolic blood pressure of 140 mmHg or higher or sustained diastolic blood pressure of 90 mmHg or higher. When using medicines to treat hypertension in pregnancy, aim for a target blood pressure of 135/85 mmHg. Consider labetalol to treat chronic hypertension in pregnant women. For women in whom labetalol is not suitable, or methyldopa if both labetalol and nifedipine are not suitable. Base the choice on any pre-existing treatment, side-effect profiles, risks (including fetal effects) and the woman's preference. Offer pregnant women with chronic hypertension aspirin once daily from 12 weeks. Offer placental growth factor (PlGF)-based testing to help rule out pre-eclampsia between 20 weeks and 36 weeks and 6 days of pregnancy, if women with chronic hypertension are suspected of developing pre-eclampsia.