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Updated: Jul 6, 2026

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion
Published on: November 10, 2023
New trends in the diagnosis and treatment in parapneumonic effusion and empyema
Moon Jun Na1, Oner Dikensoy, Richard W Light
1Division of Allergy, Pulmonary, and Critical Care Medicine of Vanderbilt University, Nashville, Tennessee, USA. mjna@kyuh.co.kr
Abstract:
Despite treatment with antibiotics, patients with complicated parapneumonic effusion (PPE) and empyema have an increased morbidity and mortality due at least in part to inappropriate management of the pleural effusion. PPE should be considered in all patients with pneumonia as antibiotic therapy is being initiated. If the diaphragms cannot be seen throughout their length on the chest radiographs, a lateral decubitus radiograph, ultrasonography or computerized tomography scan should be obtained. If the effusion is more than 10 mm in thickness, a therapeutic thoracentesis should be performed. If the fluid cannot all be removed and the characteristics of the pleural fluid indicate a poor prognosis, a chest tube should be inserted. If the drainage is incomplete due to loculation of the PPE intrapleural fibrinolytics or thoracoscopy should be performed. If the lung does not reexpand completely with thoracoscopy, then decortication should be performed without delay.
Insights
Prompt management of complicated parapneumonic effusion (PPE) and empyema is crucial for reducing patient morbidity and mortality. Early diagnosis and appropriate interventions, including imaging and drainage, are key to successful treatment outcomes.
Area of Science:
- Pulmonology
- Thoracic Surgery
- Infectious Diseases
Background:
- Complicated parapneumonic effusion (PPE) and empyema are associated with significant morbidity and mortality.
- Inappropriate management of pleural effusion contributes to poor patient outcomes despite antibiotic therapy.
Purpose of the Study:
- To outline optimal management strategies for complicated parapneumonic effusion (PPE) and empyema.
- To emphasize early diagnosis and timely intervention for improved patient outcomes.
Main Methods:
- Consideration of PPE in all pneumonia patients initiating antibiotic therapy.
- Utilizing imaging modalities like chest radiographs, lateral decubitus views, ultrasonography, or CT scans to assess effusion.
- Sequential therapeutic interventions including thoracentesis, chest tube insertion, intrapleural fibrinolytics, thoracoscopy, and decortication based on effusion characteristics and response.
Main Results:
- Diagnostic imaging is essential when diaphragmatic visualization is suboptimal on chest radiographs.
- Therapeutic thoracentesis is indicated for effusions exceeding 10 mm in thickness.
- Advanced interventions like fibrinolytics, thoracoscopy, or decortication are necessary for refractory or loculated effusions.
Conclusions:
- Prompt and appropriate management of PPE and empyema, guided by imaging and fluid characteristics, is critical.
- A stepwise approach to pleural effusion management can significantly improve patient outcomes and reduce complications.
- Timely surgical or interventional procedures are vital when conservative measures are insufficient.
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