Fig. 6From: Patient tilt improves efficacy of CO2 field-flooding in minimally invasive cardiac surgeryHypothesis on the effect of patient tilt illustrated with the Schlieren model: the heart gets better submerged in CO2 because the incision comes higher than the heart. Conversely, more CO2 can be contained in the thorax and the filling time to submerge the heart will be longerBack to article page