Related Experiment Video
Updated: Jun 26, 2026
05:56
Monitoring Lung Function with Electrical Impedance Tomography in the Intensive Care Unit
Published on: September 6, 2024
Pleural effusion in the mechanically ventilated patient
1Pulmonary Research, Regions Hospital, University of Minnesota, St. Paul, Minnesota 55101, USA. jeronimograf@yahoo.com
Current Opinion in Critical Care
|January 31, 2009
Summary
Pleural effusions (PLEF) in mechanically ventilated patients (MVP) can impact heart-lung function. Drainage response varies, and chest wall compliance influences outcomes, necessitating careful consideration before intervention.
Area of Science:
- Critical Care Medicine
- Pulmonary Medicine
- Cardiology
Background:
- Pleural effusions (PLEF) are common in mechanically ventilated patients (MVP).
- While diagnostic and drainage techniques have advanced, understanding PLEF's impact on cardiopulmonary performance in MVP remains limited.
Purpose of the Study:
- To review the physiological effects of PLEF drainage on heart-lung performance in MVP.
- To explore pathophysiologic considerations for drainage in this patient population.
Main Methods:
- Literature search for studies on physiological effects of PLEF drainage in MVP.
- Analysis of reported oxygenation responses and hemodynamic changes.
Main Results:
- Variable oxygenation responses to PLEF drainage in MVP.
- PLEF affects chest wall compliance and lung volumes, influencing gas exchange.
- Drainage can improve inspiratory muscle efficiency and aid weaning.
- PLEF can elevate cardiac filling and pericardial pressures, potentially causing tamponade-like effects reversible by drainage.
Conclusions:
- PLEF drainage does not consistently improve oxygenation in MVP with acute respiratory failure.
- Chest wall compliance assessment and lung recruitment maneuvers may predict drainage response.
- Risk-benefit analysis is crucial for selecting the optimal drainage strategy.
Related Concept Videos
01:28Pleural Effusion II: Symptoms and Management
Pleural Effusion Overview
A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions.
Clinical Manifestations:
A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions.
Clinical Manifestations:
01:25Pleural Effusion I: Introduction
Pleural effusion is an abnormal fluid accumulation in the pleural cavity, a narrow space between the lungs and the chest wall. It is not a disease per se but rather a symptom or indication of an underlying disease. In normal circumstances, this space contains a small amount of fluid (5 to 15 mL), a lubricant facilitating the non-frictional movement of the pleural surfaces.
There are two main types of pleural effusion: transudative and exudative. They are differentiated using Light's criteria,...
There are two main types of pleural effusion: transudative and exudative. They are differentiated using Light's criteria,...
01:08Pneumothorax II: Pathophysiology
Pneumothorax means the presence of air in the pleural space — the thin potential gap between the visceral and parietal pleura. This condition disrupts the normal pressure balance that keeps the lungs inflated, leading to partial or complete collapse of the affected lung.Normal physiologyUnder normal conditions, the pleural space maintains a slightly negative intrapleural pressure, which keeps the lungs expanded against the chest wall. This negative pressure creates a delicate balance between...
01:27Pneumothorax-II
Pneumothorax is a medical condition defined by the buildup of air in the pleural space between the lungs and the chest wall. This accumulation of air can lead to partial or complete lung collapse, resulting in a range of clinical manifestations. Understanding the clinical presentation and effective management strategies is crucial for healthcare professionals in providing timely and appropriate care to individuals with pneumothorax.
Clinical Manifestations:
Clinical Manifestations:
01:23Mechanical Ventilation II: Invasive Ventilation
Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...
01:29Mechanical Ventilation I: Indication and Settings
Mechanical ventilation is a life-saving technique for managing acute respiratory failure and other respiratory complications. The process involves using a machine known as a ventilator to supply oxygen to the lungs and assist in removing carbon dioxide. It serves as a bridge to long-term mechanical ventilation or a temporary measure until ventilatory support is discontinued. The ventilator can maintain this function for a prolonged period, providing critical support for patients until they can...