INS and Hyperglycemia: Some of these mechanisms may include (1) altering the immune response and reducing the risk of infection [5,32,33]; (2) avoiding the pro-inflammatory effect of hyperglycaemia which may contribute to post-operative capillary leak syndrome, platelet dysfunction and a higher risk of post-operative complications [34,35]; (3) The insulin administration may protect the heart in ischaemic conditions by increasing glucose uptake by myocytes, increasing glycogenesis and reducing the concentration of free fatty acids [36,37].