Combined Negative- and Positive-Pressure Ventilation for the Treatment of ARDS

Figure 1

Chest X-rays and CT scan. Patchy bilateral infiltrates can be seen in the first chest X-ray made immediately postoperatively (top left). After three days of noninvasive ventilation and two days of invasive ventilation, the CT scan of the lungs was performed at a PEEP of 15 cm H₂O (right) showing bilateral dorsal infiltrates reaching from cranial (top right) to caudal lung regions (down right). The chest X-ray made after CENPV during the following day shows impressive regression of the infiltrates and pleural effusions (bottom left), corresponding to improved oxygenation.