Chronic Hypertension in Pregnancy: Diagnosis, Management, and Outcomes.

Chronic hypertension affects up to 5% of pregnancies. Women can be stratified into low-risk or high-risk chronic hypertension based on baseline laboratory and diagnostic work-up, comorbid conditions, and outcomes in prior pregnancies. Pregnancies complicated by chronic hypertension are at risk for increased adverse maternal and neonatal outcomes including superimposed preeclampsia, fetal growth restriction, placental abruption, and perinatal death. Mainstays of management include blood pressure control, close monitoring for development of superimposed preeclampsia, serial ultrasound assessment of fetal growth, and antenatal testing after 32 weeks.