Mechanical Ventilation Strategies for Severe Respiratory Failure

Ventilation Techniques

For patients with moderate to severe ARDS, prone ventilation should be implemented for 12-16 hours daily before considering more invasive approaches 1
Lung-protective ventilation strategies should be maintained during all positioning, including low tidal volume ventilation (4-8 mL/kg predicted body weight) 1
Plateau pressures should be kept below 30 cmH₂O to prevent ventilator-induced lung injury 1

Non-invasive ventilation (NIV) should be considered in patients with dyspnea and/or persistent hypoxemia despite oxygen therapy 2
NIV is not appropriate for all patients with respiratory failure, particularly those with impaired consciousness or severe cardiovascular failure 2

ECMO should be considered if hypoxemia persists (PaO₂ < 55 mmHg) despite optimal mechanical ventilation and other rescue therapies including prone positioning 1
Optimization of conventional treatments (lung-protective ventilation, prone positioning) should always be undertaken before considering ECMO 3
There is insufficient evidence to make a definitive recommendation for or against the use of ECMO in patients with severe ARDS 4, 5
ECMO programs require highly experienced staff and minimum case volumes per year to maintain quality 3, 6

For hospitals without ECMO capabilities, establishing relationships with ECMO-capable institutions is advisable to facilitate timely transfer of eligible patients 3
Regular staff training and continuing education are crucial for maintaining competency in advanced respiratory support techniques 3
Quality assurance through regular audits is essential for programs offering advanced respiratory support 3