[Acute respiratory distress syndrome, mechanical ventilation and right ventricular function]

Area of Science:

• Cardiology
• Pulmonology
• Critical Care Medicine

Background:

• Mechanical ventilation in acute respiratory distress syndrome (ARDS) increases pressures, altering pulmonary circulation.
• This can cause right ventricular functional overload, potentially leading to acute cor pulmonale.
• Echocardiographic findings include right ventricular dilatation and impaired septal/left ventricular function.

Purpose of the Study:

• To highlight the risks of mechanical ventilation on right ventricular function in ARDS.
• To introduce the concept of a right ventricle protective ventilation strategy.
• To emphasize the importance of integrated lung and hemodynamic monitoring.

Main Methods:

• Review of physiological effects of mechanical ventilation on the pulmonary circulation and right ventricle.
• Echocardiographic characterization of right ventricular dysfunction in ARDS.
• Discussion of ventilation strategy optimization based on mechanical and hemodynamic monitoring.

Main Results:

• Mechanical ventilation can induce significant right ventricular overload and dysfunction.
• Acute cor pulmonale is a potential complication, affecting left ventricular function.
• Monitoring lung mechanics and hemodynamics is crucial for patient management.

Conclusions:

• A right ventricle protective ventilation strategy is essential for ARDS patients.
• Optimizing ventilation involves balancing lung recruitment with avoiding over-distension.
• This approach aims to prevent further deterioration of right ventricle function.