Acute Respiratory Failure, Ventilator-Induced Lung Injury
Conditions
Keywords
ARDS, Respiratory Mechanics, Transpulmonary pressure, Pleural pressure
Brief summary
Patients admitted to Intensive Care Unit often are affected by acute respiratory failure at admission or during hospital stay, with a mortality of 30%. Treatment remains largely supportive with mechanical ventilation as the mainstay of management by improving the hypoxemia and reducing the work of breathing; however, the mechanical forces generated during ventilation can further enhance pulmonary inflammation and edema, a process that has been termed ventilator induced lung injury (VILI). Consequently, in clinical practice the lung protective ventilation is mainly based on the reduction of the tidal volume, the airway and the transpulmonary plateau pressure. A good clinical practice is based on the assessment of changes in respiratory mechanics. Aim of the study is to determine the accuracy of the OPTIVENT system in measuring transpulmonary pressure, comparing it with the systems currently in use in our Operative Unit.
Interventions
OPTIVENT (SIDAM SRL, Mirandola, Italy) is a new fully automated and self-calibrating system that allows a real-time monitoring and recording of airway pressure and esophageal pressure during mechanical ventilation. The system required the insertion of an esophageal balloon catheter and an airway pressure transducer.
Sponsors
Study design
Eligibility
Inclusion criteria
* acute respiratory failure * invasive mechanical ventilation.
Exclusion criteria
* haemodynamic instability * presence of barotrauma * esophageal disease.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Measure of transpulmonary pressure (cmH2O). | Day 1. | Validation of the new system in terms of accuracy and precision. The accuracy of the OPTIVENT system in measuring transpulmonary pressure, comparing it with the systems currently in use, will be assessed by measure of airway and esophageal pressure at the end of an inspiratory and expiratory hold. |
Countries
Italy