Summary of results for clinical studies.

APACHE2: Acute Physiology and Chronic Health Evaluation 2 Score; ARF: acute renal failure; CI: cardiac index; CPPV: continuous positive pressure ventilation; CRS: compliance (respiratory system); DO2: oxygen delivery; PaO2: partial pressure of oxygen (mmHg); PMAX/PINFLATION : upper and lower (respectively) pressure levels in APRV/BIPAP mode; LIS: lung-injury score; NR: not reported; RASS: Richmond Agitation Severity Score; SOFA: sequential organ failure assessment; VT: tidal volume; all other abbreviations as stated previously in the text.