Figure 1

Study protocol and time course. PCV, Pressure controlled ventilation; HFOV, high-frequency oscillatory ventilation; FiO 2, fraction of inspired oxygen; PEEP, positive endexpiratory pressure; VT, tidal volume; RR, respiratory rate; I:E, inspiratory:expiratory-ratio; mPaw, mean pulmonary airway pressure; Plow, lower inflection point of the pressure-volume curve; PaO 2, arterial oxygen partial pressure; PaCO 2, carbon dioxide partial pressure; av-ECLA, arteriovenous extracorporeal lung assist device.