A randomised trial of conventional and off-pump coronary artery bypass grafting (CABG) on myocardial injury as assessed by multi-parametric magnetic resonance imaging (MRI) and specific biochemical markers.

INTERVENTION: Patients will be randomised to receive conventional CABG or off‐pump CABG (OPCABG). CONDITION: Surgery: Coronary artery bypass grafting (CABG) ; Surgery PRIMARY OUTCOME: 1. Number and percentage of new left ventricular (LV) wall segments that are assessed as non viable by late Gd‐DTPA MR imaging in both the conventional CABG and OPCABG groups; 2. The distribution (regional versus global) of new non viable LV segments in both the conventional CABG and OPCABG groups; 3. The extent of post operative rise in biochemical cardiac markers will be compared in the two surgical groups and will be correlated with the functional cardiac MR assessment. SECONDARY OUTCOME: Not provided at time of registration INCLUSION CRITERIA: 90 patients undergoing CABG