Advanced Respiratory Monitoring for Safer Mechanical Ventilation in Patients Without Respiratory Failure

Patients admitted to the intensive care unit (ICU) and mechanically ventilated for reasons other than acute respiratory failure, such as coma, trauma, or sepsis, are at risk of developing acute respiratory distress syndrome (ARDS), which increases the duration of mechanical ventilation, mortality, and functional dependence at discharge. Low tidal volume mechanical ventilation is recommended for these patients to prevent ARDS, but few other modifiable risk factors are known. Advanced respiratory monitoring, which includes continuous recording of airway and esophageal pressure, inspiratory and expiratory flow, and the distribution of ventilation within the lungs, has been used in patients with ARDS to personalize ventilation parameters, prevent ventilator-induced lung injury (VILI), and improve outcomes. It is unknown whether the use of these same monitoring techniques in patients without respiratory failure at the time of ICU admission can prevent the development of ARDS.

Study Population Eligibility Ages Eligible for Study: 18 Years and older (Adult, Older Adult) Sexes Eligible for Study: All Accepts Healthy Volunteers: No

Inclusion criteria

Adult patients +18 years. Undergoing invasive mechanical ventilation for reasons other than acute respiratory failure (such as coma, trauma, or sepsis).

Initiation of monitoring within 24 hours of oro-tracheal intubation.

Exclusion criteria

Evidence of pneumothorax, pneumomediastinum, or subcutaneous emphysema. Pregnancy. Absolute contraindications to nasogastric tube placement. Absolute contraindications to electrical impedance tomography (EIT) monitoring.