Eclampsia

Eclampsia is new-onset generalized tonic-clonic, focal, or multifocal seizure in a patient with a hypertensive disorder of pregnancy when another neurologic cause is not more likely. It can occur before, during, or after delivery. Although it commonly follows preeclampsia, seizures may occur without antecedent severe hypertension or proteinuria; absence of either finding must not delay magnesium sulfate or blood pressure assessment. PubMedPubMedEclampsia - StatPearls - NCBI Bookshelf

Symptoms preceding seizure may include severe headache, visual disturbance, altered mental status, or epigastric/right upper quadrant pain, but none reliably excludes sudden eclampsia. Pregnancy-associated seizures before 20 weeks, more than 48 hours postpartum, with focal deficits, recurrent seizures, or prolonged coma warrant especially active evaluation for alternate neurologic diagnoses. PubMedPubMedEclampsia - StatPearls - NCBI Bookshelf

During active seizure, protect the patient from injury, position laterally when feasible, maintain oxygenation and airway patency, establish IV access, and assess maternal cardiopulmonary status. Continuous fetal monitoring is appropriate once maternal resuscitation permits, but fetal intervention should not supersede maternal stabilization. Eclampsia is an obstetric emergency requiring coordinated obstetric, anesthesia, and critical care management. PubMedPubMedEclampsia - StatPearls - NCBI Bookshelf

Magnesium sulfate is first-line therapy for eclamptic seizure treatment and recurrence prevention. FDA labeling states that IV anticonvulsant activity is immediate and lasts about 30 minutes; serum magnesium concentrations typically sufficient to control convulsions range from 2.5 to 7.5 mEq/L. dailymed nlm nihdailymed nlm nihDailyMed - MAGNESIUM SULFATE IN DEXTROSE- magnesium sulfate heptahydrate injection, solution The supplied FDA label does not provide a loading or maintenance dose in the available excerpt; use an institutionally approved obstetric magnesium protocol rather than extrapolating from the label. dailymed nlm nihdailymed nlm nihDailyMed - MAGNESIUM SULFATE IN DEXTROSE- magnesium sulfate heptahydrate injection, solution

Delivery is the definitive treatment for preeclampsia/eclampsia. In eclampsia, control seizures, stabilize airway and oxygenation, and initiate severe-hypertension treatment before proceeding with delivery planning; the route and timing of delivery depend on maternal stabilization, gestational age, fetal status, and obstetric circumstances. NEJM+2NEJMPredictive Value of the sFlt-1:PlGF Ratio in Women with ...jaccPreeclampsia—Pathophysiology and Clinical Presentations: JACC State-of-the-Art ReviewPubMedEclampsia - StatPearls - NCBI Bookshelf

NICE advises IV magnesium sulfate for a woman with eclampsia in critical care and recommends selecting mode of birth according to clinical circumstances and the woman’s preference. PubMedPubMedHypertension in pregnancy: diagnosis and management - NCBI Bookshelf For preterm planned birth in preeclampsia, provide antenatal corticosteroids and magnesium sulfate when indicated; delivery should not be delayed when there is maternal or fetal deterioration. PubMed+1PubMedHypertension in pregnancy: diagnosis and management - NCBI BookshelfPubMedPreeclampsia - StatPearls - NCBI Bookshelf

Eclampsia can occur postpartum, most often within 48 hours after delivery, with highest risk during the first postpartum week. PubMedPubMedEclampsia - StatPearls - NCBI Bookshelf New-onset postpartum preeclampsia should be considered with hypertension arising 48 hours to 6 weeks after delivery, particularly when severe features are present. ajogajogPostpartum preeclampsia or eclampsia: defining its place ...

For women with preeclampsia after birth, NICE recommends frequent inpatient blood pressure measurement, symptom assessment for severe headache and epigastric pain at each measurement, and post-discharge monitoring based on antihypertensive treatment status. PubMedPubMedHypertension in pregnancy: diagnosis and management - NCBI Bookshelf This surveillance is clinically important because postpartum blood pressure often worsens on days 3 to 7. ajogajogPostpartum preeclampsia or eclampsia: defining its place ...

The dominant model begins with abnormal trophoblast invasion and incomplete spiral-artery remodeling, producing placental ischemia and release of antiangiogenic factors, particularly soluble fms-like tyrosine kinase-1 and soluble endoglin. These factors disrupt vascular endothelial growth factor and transforming growth factor-β signaling, promoting systemic endothelial dysfunction, vasoconstriction, oxidative stress, and multiorgan injury. jaccjaccPreeclampsia—Pathophysiology and Clinical Presentations: JACC State-of-the-Art Review

For eclampsia, impaired cerebral autoregulation and blood-brain barrier dysfunction are leading mechanistic explanations. Vasogenic edema and posterior reversible encephalopathy syndrome are common imaging correlates, but eclampsia can occur below severe-range blood pressure, supporting a role for endothelial injury beyond blood pressure alone. jacc+1jaccPreeclampsia—Pathophysiology and Clinical Presentations: JACC State-of-the-Art ReviewPubMedEclampsia - StatPearls - NCBI Bookshelf