Mechanical Power and Ventilatory Ratio in ARDS

Mechanical power (MP) and ventilatory ratio (VR) are variables associated with outcomes in patients with acute respiratory distress syndrome (ARDS). In respiratory setting, the optimization of MP should lead to an increase in VR. Therefore, the objectives of this study are: to assess the relationship between MP and VR and to compare the components of MP (ventilatory variables) according to a level of MP (17 J/minute) considered harmful.

Inclusion Criteria:patients who have been receiving mechanical ventilation (MV) and have been defined as with ARDS according to the Berlin definitionExclusion Criteria:patients with chronic pulmonary diseasepatients with an expected duration of MV shorter than 48 hpatients with a high risk of death within 3 months for reasons other than ARDSpatients having made the decision to withhold life-sustaining treatment.