Effects of End-inspiratory Pause on Ventilation

This study aims to evaluate the effect of reducing tidal volume and respiratory rate together with an end-inspiratory pause setting on ventilatory efficiency and the distribution of inspired gas within the lungs in ARDS patients. The study will use non-invasive monitoring of respiratory function with volumetric capnography and tomography by electrical impedance to evaluate the physiologic function. The expected results include a significant reduction of mechanical energy delivered by mechanical ventilation, improved ventilatory efficiency, and generate more homogenous ventilation with the end-inspiratory pause.