Management of Bilateral Pleural Effusion in Children

Diagnostic Steps

Ultrasound is mandatory to confirm the presence and characteristics of the pleural fluid collection, as it provides more accurate information than chest X-ray alone 1, 3, 4
Blood cultures, including anaerobic bottle, are critical for identifying causative organisms, and should be performed immediately upon hospital admission 6
Full blood count with differential should be assessed to check for anemia and white cell count 6
Electrolytes should be checked to detect syndrome of inappropriate ADH 1
Serum albumin levels are often low in these cases and should be monitored 1
C-reactive protein is a useful marker of disease progression 6
Antistreptolysin O titre (ASOT) should be evaluated to assess for post-streptococcal infection 7
Sputum culture should be performed if the child can produce sputum 2

All children with parapneumonic effusion or empyema must be admitted to hospital, as the absence of fever does not exclude bacterial infection 2, 5
Intravenous antibiotics should be started immediately to cover Streptococcus pneumoniae, the most common causative organism in pediatric parapneumonic effusions 2, 6, 7
Recommended antibiotic regimens include second-generation cephalosporin, aminopenicillin with beta-lactamase inhibitor, or aminopenicillin plus metronidazole 6
Aminoglycosides should be avoided due to poor penetration into the pleural space and ineffectiveness 6
Plan for 1-4 weeks of oral antibiotics after discharge, extending longer if residual disease persists on follow-up imaging 2, 6, 7

Effusions that are enlarging or compromising respiratory function should not be managed by antibiotics alone, and drainage should be considered 2, 8, 6
Indicators for drainage include respiratory compromise, enlarging effusions on serial imaging, persistent fever despite antibiotics, and thick fluid with loculations on ultrasound 2, 3, 5, 8
Ultrasound guidance should be used for drain placement to reduce complications 1, 3, 2, 6
Small-bore percutaneous drains are preferred for initial drainage, as there is no evidence that large-bore drains are more effective 2, 6

Intrapleural fibrinolytics are recommended for complicated parapneumonic effusion or empyema, as they shorten hospital stay significantly 8
Urokinase is the recommended agent, with dosing of 40,000 units in 40 mL of 0.9% saline for children ≥10 kg, and 10,000 units in 10 mL of 0.9% saline for children <10 kg, given twice daily for 3 days 8

A respiratory pediatrician should be involved early in the care of all patients requiring chest tube drainage for pleural infection 2, 6
Consider thoracic surgery consultation if the child shows persistent sepsis, no clinical improvement within 7 days, or organized empyema requiring decortication 8, 6

Delaying drainage can result in prolonged illness and hospital stay, and conservative management with antibiotics alone is not recommended 2, 8
Chest physiotherapy is not beneficial and should not be done in children with empyema 8
Oxygen saturation should be checked carefully, as levels below 92% indicate severe disease requiring aggressive intervention 3, 5

Follow the child until complete recovery and near-normal chest radiograph, as the chest X-ray returns to normal in 60-83% of children by 3 months, over 90% by 6 months, and all by 18 months 8, 5
Prognosis is excellent, with the majority of children making complete recovery with normal lung function, despite the severity of initial presentation 5