Management of Preeclampsia with Severe Features at 37 Weeks Gestation
Diagnosis and Assessment
- The American College of Cardiology recommends confirming preeclampsia diagnosis by documenting blood pressure measurements on at least two occasions 15 minutes apart, proteinuria assessment using urine protein/creatinine ratio, complete blood count focusing on hemoglobin and platelet count, and liver transaminases, creatinine, and uric acid levels 1, 2, 3, 4
- The European Society of Cardiology suggests that proteinuria assessment using urine protein/creatinine ratio (≥30 mg/mmol is abnormal) is essential for diagnosing preeclampsia 3, 4
Blood Pressure Management
- The American Heart Association recommends initiating oral antihypertensive therapy targeting diastolic BP of 85 mmHg and systolic BP 110-140 mmHg if blood pressure ≥140/90 mmHg but <160/110 mmHg, with first-line agents being oral nifedipine, labetalol, or methyldopa 1, 4, 5
- The European Society of Cardiology advises against using ACE inhibitors, ARBs, or direct renin inhibitors due to severe fetotoxicity causing renal dysgenesis 9, 10
Magnesium Sulfate Administration
- The American College of Obstetricians and Gynecologists recommends administering magnesium sulfate for seizure prophylaxis if proteinuria is present with severe hypertension (≥160/110 mmHg) or if any neurological signs or symptoms exist 1, 2, 6
Fetal Assessment and Delivery Planning
- The Society for Maternal-Fetal Medicine suggests performing a biophysical profile, including fetal biometry, amniotic fluid volume, fetal breathing movements, body movements, and tone, and continuous electronic fetal heart rate monitoring to assess for non-reassuring fetal status 5
- The American College of Obstetricians and Gynecologists recommends proceeding with delivery after maternal stabilization because all women with preeclampsia at ≥37 weeks gestation should be delivered 1, 2, 6, 5
Postpartum Considerations
- The European Society of Cardiology advises continuing blood pressure monitoring after delivery as 10% of maternal deaths from hypertensive disorders occur postpartum, and monitoring for postpartum complications including stroke and eclampsia 7