Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 12/2/2025

Mechanical Ventilation Monitoring and Management

Ventilator Settings and Lung Protection

  • The American Thoracic Society recommends maintaining plateau pressure (Pplat) ≤30 cmH₂O to prevent complications and improve outcomes in mechanically ventilated patients with ARDS, with a strong recommendation and moderate confidence 1, 4
  • The American College of Chest Physicians suggests that driving pressure (plateau pressure minus PEEP) must be partitioned from total pressure, as it represents a major mortality risk factor 3
  • The European Society of Intensive Care Medicine recommends monitoring mean airway pressure, as it directly affects pulmonary vascular resistance and right ventricular afterload 2, 5
  • The American Thoracic Society recommends lung-protective ventilation with tidal volume at 4-8 ml/kg predicted body weight 1, 3

Hemodynamic Monitoring and Integration

  • The Society of Critical Care Medicine recommends monitoring central venous pressure trends to assess RV function response to treatment, rather than using it as an absolute filling pressure target 5
  • The American College of Cardiology suggests using echocardiography to detect acute cor pulmonale, which occurs in 20-25% of ARDS cases and requires immediate ventilator adjustment 5, 6
  • The European Society of Intensive Care Medicine recommends using pulse pressure variation >13% during passive ventilation with tidal volume ≥8 ml/kg to predict fluid responsiveness 5

Respiratory Mechanics and Weaning

  • The American Association for Respiratory Care recommends calculating static compliance (tidal volume divided by plateau pressure minus PEEP) to assess lung distensibility 3
  • The American Thoracic Society suggests using the rapid shallow breathing index (respiratory rate divided by tidal volume in liters) to predict weaning success when <105 breaths/min/L 3