A PEEP trial shows that a PEEP of 16 cm H₂O achieves a balance between oxygen delivery, lung compliance and hemodynamic performance. (See card: PEEP Trial)

A repeat CT scan of the abdomen shows that the pancreatic abscess has increased in size which explains the recent deterioration in gas exchange. Despite surgical drainage and debridement and broad-spectrum antibiotics, oxygenation remains a problem. All attempts to reduce either PEEP or FiO₂ fail. A CT scan of the chest demonstrates significant consolidation of both lungs.

How would you proceed?