Intermediate
Technical
IVT
pleural effusion
Accumulation of fluid in the pleural space, common after cardiac surgery requiring drainage if symptomatic.
Full Definition
The abnormal collection of fluid between the parietal and visceral pleura surrounding the lungs. In cardiac surgery patients, pleural effusions commonly develop due to increased capillary permeability, disrupted lymphatic drainage, or inflammatory responses. Small effusions may resolve spontaneously, but larger collections can impair respiratory function and require drainage via thoracentesis or chest tube placement. Post-operative pleural effusions may be serous, bloody, or chylous depending on the underlying cause.
Usage
Usage note: Distinguish from pericardial effusion; specify location (left, right, bilateral).
In Context
- "Post-operative chest X-ray revealed a moderate left pleural effusion." — post-operative note
- "Thoracentesis was performed to drain the symptomatic pleural effusion." — procedure note
Also known as
pleural fluid collection
Don't confuse with
pneumothorax
pericardial effusion