The safety, feasibility and post-operative outcome are the main concern in Off-pump Coronary artery bypass graft (OPCAB) surgery as compared to conventional technique especially in multi-vessels coronary artery disease.
The effect of the duration of ischaemic myocardial time to left ventricular ejection fraction (LVEF) after valve replacement surgery has been attributed. This study aims to look at the correlation between myocardial ischaemic time and changes LVEF post valve replacement surgery up to 6 months period.