Fig. 1From: Impact of hyperoxia on the gut during critical illnessesSubtypes of hyperoxia of oxygen inhalation (conservative vs. liberal oxygen therapy) and peripheral VA-ECMO; A Conservative oxygen therapy leads to mild alveolar hyperoxia and normoxemia; B Liberal oxygen therapy leads to moderate or severe alveolar hyperoxia and mild whole-body hyperoxia; C Peripheral VA-ECMO may lead to moderate or severe lower-body hyperoxia; PO2: partial pressure of oxygen; FiO2: inspired oxygen fraction; FSO2: sweep gas oxygen fraction; PPOSTO2: post-oxygenator oxygen partial pressureBack to article page