“…In the post-arrest period, tissue hypoperfusion may persist for multiple reasons including the lack of resolution of the underlying insult, a post-arrest systemic inflammatory response (20, 21), myocardial depression with resultant cardiogenic shock (22), microcirculatory dysfunction (23–25), and mitochondrial injury(26, 27). The development of other complications such as sepsis (28), bowel ischemia (29, 30), seizures (31), and/or adrenal insufficiency causing shock (32) could play a role if present. Another potential cause of elevated lactate levels in the post-arrest period may be the presence of a hyper metabolic state with accelerated aerobic glycolysis potentially caused by activation of the Na+ K+ ATPase by endogenous epinephrine (33, 34).…”