A pleural effusion develops when the volume of fluid entering the pleural space exceeds the amount that can be removed via the lymphatics. Effusions result from either increased pleural fluid formation or decreased lymphatic clearance, or a combination of these two. The most common causes are congestive heart failure (CHF), pneumonia, cancer, and pulmonary embolism.
KeywordsChest Tube Pleural Fluid Pleural Space Tube Thoracostomy Oncotic Pressure
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