A Comparison of Optimal PEEP Determination Guided by EIT and Conventional Protective Ventilation Tool in ARDS Patients

The study of positive end-expiratory pressure(PEEP) in the setting mode has not yet been conclusive. there are several ways to choose the best positive end-expiratory pressure(PEEP) mode for ARDS patients. In this study ,the investigators selected two best positive end-expiratory pressure(PEEP) assessment methods to compare: First is using the conventional postive ventilator to choose positive end-expiratory pressure(PEEP) and the new non-invasive electrical impedance tomography(EIT) guided method and evaluation the treatment outcome in moderate and severe acute respiratory distress syndrome patients by using pressure-volume curve guided and electrical impedance tomography guided positive end-expiratory pressure setting. In this project, we utilize a newly available non-invasive method- electric impedance tomography (EIT) and Protective Ventilation to determine the optimal PEEP on ARDS patients required invasive mechanical ventilator support at a medical center medical ICU (MICU) and cardiovascular ICU (CVICU)- the Far Eastern memorial hospital, Taiwan.