PEEP Settings for Spontaneous Breathing Trials

Guideline-Based Recommendations

• The American College of Chest Physicians/American Thoracic Society 2017 guidelines provide a conditional recommendation (moderate-quality evidence) that initial SBTs should be conducted with inspiratory pressure augmentation of 5-8 cm H₂O rather than T-piece or CPAP alone, increasing SBT success rates to 84.6% versus 76.7% with T-piece 1, 2, 3
• The American College of Chest Physicians/American Thoracic Society 2017 guidelines recommend inspiratory pressure augmentation of 5-8 cm H₂O for initial SBTs, which improves extubation success to 75.4% versus 68.9% with T-piece 1, 3

Specific PEEP Parameters by Clinical Context

• The American Thoracic Society recommends using PEEP of 5 cm H₂O with pressure support 5-8 cm H₂O for standard-risk patients 1, 3
• A duration of 30 minutes is sufficient for most patients for SBTs, according to clinical guidelines 3, 4

Common Pitfalls to Avoid

• The American College of Chest Physicians/American Thoracic Society advises against using T-piece alone as the initial SBT method, as it may be overly stringent and delay extubation in patients who could successfully extubate 1, 4

Post-Extubation Considerations

• The American Thoracic Society recommends using prophylactic noninvasive ventilation immediately after extubation for high-risk patients who pass the SBT, rather than standard oxygen therapy (strong recommendation, moderate-quality evidence) 1, 3, 5