“…3,10 The mechanisms of cardiovascular gas generation after CPR include an increase in the level of dissolved gas in the blood due to rapid chest compression and decompression, 3,4 infl ow of air during venous catheterization, 3,10 air intrusion via bronchovenous fi stulas 2 related to endotracheal intubation, alveolar rupture due to barotrauma by manual or mechanical mandatory ventilation, 7,10,11 and disruption of fragile pulmonary vasculature or aortic dissection 3,8 during chest compression. 4,7,[10][11][12] The generated cardiovascular gas is subsequently transported to multiple organs via both arterial and venous systems by chest compression. [2][3][4]7,10,12 Gas in the hepatic vein, which is the most frequently observed location of intrahepatic gas in cases of traumatic death, 4 travels in a retrograde direction 4,7 from the right heart chambers 3 via the inferior vena cava in response to chest compression.…”