Primary coronary intervention within a few hours of a myocardial infarction has greatly reduced mortality as well as the risk of developing chronic heart failure. There are though still a large number of patients that develop symptoms of heart failure in the form of fatigue and breathlessness with physical exertion in spite of medical treatment. With the advance in stem cell technology there is now hope for the possibility of regenerating/repairing dead myocardial tissue, hence improving cardiac function.