Acute chest syndrome in sicke cell disease management

Overview

Acute chest syndrome is one of the most serious and life-threatening complications of sickle cell disease (SCD). It requires immediate recognition and urgent treatment because delayed management can rapidly lead to respiratory failure and death. Patients with suspected acute chest syndrome should be admitted to a high dependency unit (HDU) or intensive care unit (ICU) for close monitoring and supportive care.

Severity

Acute chest syndrome is a life-threatening medical emergency.

• Admit the patient to a high dependency unit (HDU) or intensive care unit (ICU).

Diagnostic criteria

Diagnose acute chest syndrome in a patient with sickle cell disease who presents with respiratory distress and/or new pulmonary findings.

Respiratory distress

Look for the following signs:

• Fast breathing (tachypnoea)

• Oxygen saturation (SpO₂) <95% on room air

Associated clinical features

One or more of the following may also be present:

• Pleuritic chest pain

• Cough

• Fever

• Tachycardia

• Pulmonary infiltrates on chest X-ray (CXR)

Investigations

Perform the following investigations:

• Arterial blood gases (ABG)

• Creatinine

• Electrolytes

• Alanine aminotransferase (ALT)

• Full blood picture (FBP)

• Malaria test

• Blood culture and sensitivity

• Urine culture and sensitivity

• C-reactive protein (CRP)

• Chest X-ray (CXR)

• High-performance liquid chromatography (HPLC)

Management

Initiate treatment immediately.

• Administer supplemental oxygen to maintain SpO₂ >95%.

• Provide adequate analgesia for pain relief.

• Administer fluids according to the hydration protocol.

• Start broad-spectrum antibiotics while awaiting culture and sensitivity results.

• Consider top-up blood transfusion or exchange transfusion if the required expertise is available.