O14.2 HELLP syndrome

Name of the Condition

• HELLP syndrome

Summary

HELLP syndrome is a pregnancy-related complication characterized by hemolysis (breakdown of red blood cells), elevated liver enzymes, and low platelet count. It typically occurs in the third trimester or postpartum period and is considered a severe form of pre-eclampsia. Prompt recognition and management are critical due to the risk of maternal and fetal complications.

Causes

The exact cause of HELLP syndrome is not fully understood, but it is thought to involve abnormalities in the placenta, such as insufficient blood flow or endothelial dysfunction. Genetic, immunological, and vascular factors may also contribute to its development, similar to pre-eclampsia.

Risk Factors

• History of pre-eclampsia or HELLP syndrome in previous pregnancies.
• Chronic hypertension, diabetes, or kidney disease.
• Obesity or advanced maternal age.
• Multiple gestation (e.g., twins or triplets).
• Autoimmune disorders like lupus.
• First pregnancy or new partner.

Symptoms

• Severe upper abdominal pain or tenderness.
• Nausea, vomiting, or malaise.
• Headaches or visual disturbances.
• Swelling (edema) in the hands, face, or legs.
• Fatigue or weakness.
• Bleeding or bruising due to low platelet count.

Diagnosis

Diagnosis is based on laboratory tests showing hemolysis (elevated bilirubin or LDH), elevated liver enzymes (AST/ALT), and low platelet count. Blood pressure measurements and urine tests for protein may also be performed to assess for concurrent pre-eclampsia. Imaging or additional tests may be used to evaluate organ involvement.

Treatment Options

Treatment focuses on stabilizing the mother and managing complications. This may include blood pressure control, magnesium sulfate for seizure prevention, and corticosteroids to improve platelet count and lung maturity in the fetus. Delivery is often the definitive treatment, especially if the pregnancy is near term or if maternal/fetal health is compromised.

Prognosis and Follow-Up

With prompt treatment, most women recover fully after delivery, though some may experience residual liver or kidney issues. Close monitoring of blood pressure, liver function, and platelet levels is recommended postpartum. Future pregnancies may carry an increased risk, requiring careful surveillance.

Complications

• Liver rupture or hematoma.
• Disseminated intravascular coagulation (DIC).
• Acute kidney injury or failure.
• Pulmonary edema or respiratory distress.
• Placental abruption.
• Fetal growth restriction or stillbirth.

Lifestyle & Prevention

While HELLP syndrome cannot always be prevented, managing underlying conditions like hypertension or diabetes may reduce risk. Regular prenatal care, early symptom reporting, and adherence to provider recommendations are important for early detection and management.

When to Seek Professional Help

Seek immediate medical attention if experiencing severe abdominal pain, persistent headaches, visual changes, or signs of bleeding (e.g., bruising, nosebleeds). These symptoms may indicate worsening HELLP syndrome or other complications requiring urgent care.

Tips for Medical Coders

Document the presence of hemolysis, elevated liver enzymes, and low platelet count to support the diagnosis. Note the timing (e.g., third trimester or postpartum) and any associated pre-eclampsia or eclampsia. Ensure lab results and clinical findings are clearly recorded to justify code assignment.