Treatment of Chest Wall Empyema
Initial Management
- The American Thoracic Society recommends starting antibiotic therapy immediately in all patients with empyema, with initial empiric antibiotics covering both aerobic and anaerobic pathogens commonly associated with empyema 2
- Recommended antibiotic regimens include second-generation cephalosporin plus metronidazole, benzyl penicillin plus ciprofloxacin, meropenem plus metronidazole, and clindamycin alone, especially in penicillin-allergic patients 2
- Aminoglycosides should be avoided due to poor penetration into the pleural space 2
Drainage Procedures
- Small-bore chest drains or pigtail catheters should be used whenever possible to minimize patient discomfort, and chest tubes should be connected to a unidirectional flow drainage system kept below the level of the patient's chest 1, 3
- A chest radiograph should be performed after insertion of a chest drain, and when drainage suddenly stops, the drain must be checked for obstruction by flushing 1, 3
- The drain should be removed once clinical resolution is achieved 3
Intrapleural Fibrinolytics
- Intrapleural fibrinolytics are recommended for complicated parapneumonic effusions or empyema to shorten hospital stay, with urokinase as the recommended fibrinolytic agent based on randomized controlled trials in children 4
- Dosing regimen for urokinase includes twice daily for 3 days, with 40,000 units in 40 ml 0.9% saline for patients ≥10 kg and 10,000 units in 10 ml 0.9% saline for patients <10 kg 4, 5
Surgical Management
- Surgical consultation should be considered if there is no response to drainage and antibiotics after approximately 7 days, with indications for surgical intervention including failure of chest tube drainage, antibiotics, and fibrinolytics, persistent sepsis, and organized empyema in a symptomatic patient 2, 6
Monitoring and Duration of Treatment
- Resolution of pleural infection should be confirmed by a decrease in pleural fluid neutrophil count and sterile cultures 2
Special Considerations and Complications
- In children, Streptococcus pneumoniae is the most common pathogen, and third-generation cephalosporins are recommended 2
- Early mobilization and exercise are recommended during recovery, and analgesia is important, particularly in patients with chest drains 5
Chest Drain Management Pitfalls
- A bubbling chest drain should never be clamped, and if a patient with a clamped drain complains of breathlessness or chest pain, the drain should be immediately unclamped 3
- Patients with chest drains should be managed on specialist wards by staff trained in chest drain management 3