Fig. 1From: Smart Care™ versus respiratory physiotherapy–driven manual weaning for critically ill adult patients: a randomized controlled trialStudy flowchart. EtCO2, End-tidal carbon dioxide concentration; f/VT, Frequency of breaths (respiratory rate) divided by tidal volume; FiO2, Inspired oxygen fraction; FVC, Forced vital capacity; P0.1, Airway occlusion pressure at 0.1 second; PEEP, Positive end-expiratory pressure; Pemax, Maximal expiratory pressure; Pimax, Maximal inspiratory pressure; PSV, Pressure support ventilation; SpO2, Peripheral oxygen saturation; VT, Tidal volumeBack to article page