Management of HELLP Syndrome
The definitive treatment for HELLP syndrome is prompt delivery, especially if gestational age is ≥34 weeks, maternal condition is deteriorating, there is severe thrombocytopenia, or evidence of fetal distress. 1
Diagnosis and Initial Assessment
HELLP syndrome is characterized by:
- Hemolysis (with increased LDH >600 U/L)
- Elevated liver enzymes (AST ≥70 U/L)
- Low platelets (<100,000/mm³) 1, 2
Clinical presentation often includes:
- Epigastric or right upper quadrant pain (cardinal symptom)
- Nausea and vomiting
- Hypertension (though absent in 20% of cases)
- Proteinuria (may be minimal or absent in 5-15% of cases) 1, 3
Management Algorithm
1. Maternal Stabilization
Blood Pressure Control:
- Target BP <160/110 mmHg to prevent cerebral hemorrhage
- First-line medications:
- IV labetalol: 10-20 mg initially, then 20-80 mg every 10-30 minutes (max 220 mg)
- IV nicardipine for hypertensive crisis
- Second-line option: Oral nifedipine 10 mg, repeatable every 20 minutes (max 30 mg)
- Caution when using nifedipine with magnesium sulfate due to hypotension risk 1
Seizure Prophylaxis:
- Magnesium sulfate is the drug of choice
- Continue for at least 24 hours post-delivery 1
2. Laboratory Monitoring
- Complete blood count with peripheral smear
- Liver function tests (AST, ALT, LDH)
- Coagulation studies (PT, PTT, fibrinogen)
- Renal function tests
- Blood glucose monitoring (hypoglycemia can occur) 4, 1
3. Blood Product Management
- Platelet transfusion if count <50,000/mm³ for delivery, especially if cesarean section is planned
- Whole blood transfusion if hemoglobin <10 g/dL 4, 1
4. Fluid Management
- Central venous catheter placement for critically ill patients
- Urinary catheter for hourly output monitoring
- Avoid diuretic therapy as plasma volume is already reduced 4, 1
5. Timing and Mode of Delivery
Immediate delivery is indicated if:
- Gestational age ≥34 weeks
- Worsening maternal condition
- Severe thrombocytopenia
- Evidence of fetal distress 1, 2
Delivery considerations:
- Vaginal delivery is preferable when possible
- Cesarean section if maternal condition is deteriorating rapidly, fetal distress is present, or delivery needs to be expedited
- For gestations <34 weeks, administer corticosteroids for fetal lung maturity 1, 2
6. Anesthetic Considerations
- Regional anesthesia may be limited by coagulation disturbances
- If general anesthesia is required:
7. Post-Delivery Care
- Close monitoring for at least 48 hours after delivery
- HELLP syndrome typically peaks 24 hours post-delivery
- Continue magnesium sulfate for at least 24 hours
- Maintain blood pressure control
- Monitor for complications:
Special Considerations
Conservative Management
Conservative management (>48 hours) is controversial but may be considered in selected cases <34 weeks' gestation in a tertiary care center with close maternal and fetal monitoring. However, delivery should be performed if maternal condition worsens or signs of fetal distress occur. 1, 2
Corticosteroid Use
- For fetal lung maturity: Single course of corticosteroids recommended for pregnancies <34 weeks
- For maternal HELLP syndrome: Standard corticosteroid treatment is of uncertain clinical value
- High-dose treatment and repeated doses should be avoided due to potential adverse effects on the fetal brain 1, 2
Complications and Prevention
Common Complications
- Hepatic complications (subcapsular hematomas, hepatic rupture, hepatic failure)
- Renal failure
- Pulmonary edema
- DIC
- Cerebral hemorrhage 1
Prevention in High-Risk Women
- First-trimester screening for women with prior HELLP syndrome
- Aspirin prophylaxis (150 mg nightly) before 16 weeks' gestation
- Calcium supplementation (1.5-2g/day) for women with low calcium intake 1
Risk of Recurrence
- The frequency for repeated hypertensive disease in subsequent pregnancies ranges from 27% to 48% 3
Pitfalls to Avoid
- Delaying delivery when indicated
- Inadequate blood pressure control (target <160/110 mmHg)
- Failing to monitor for complications for at least 48 hours post-delivery
- Overlooking HELLP syndrome in patients without hypertension or significant proteinuria
- Neglecting to monitor blood glucose (hypoglycemia can occur) 4, 1