Ischaemic preconditioning is a phenomenon where brief periods of ischaemia and reperfusion prior to a prolonged episode of ischaemia have a protective effect on tissue. Ischaemic preconditioning has been demonstrated in every animal species tested and many different tissues, including human myocardium (Yellon et al, 1993), (Hausenloy et al, 2007). Many different patterns of ischaemic preconditioning have been tested (Kloner and Jennings, 2001 a), and this investigation aimed to identify a pattern of ischaemic preconditioning that promoted protective effects in a rat heart strip model, with...