“…8,10,37 Despite these potentially unfavorable effects, these authors report that hyperoxic ventilation was however followed by improved peripheral, 9,35,36 cerebral, 10 and myocardial oxygenation 9 as well as improved cerebral and myocardial function. 9,10 Since hyperoxic ventilation is capable to restore organ function in extreme anemia, 37 it is extremely unlikely that additional physically dissolved O 2 is merely shunted to the venous side of the circulation. Although we observed an increase of systemic vascular resistance and a reduction of cardiac output during hyperoxic ventilation, intestinal bood flow was not significantly reduced.…”