Impaired contractile function after a heart attack and due to coronary heart disease is a
major cause of "heart failure" limiting quality of life and prognosis, which cannot be
prevented even with optimal standard therapy.
The aim of the current trial is to investigate whether infusion of progenitor cells into the
coronary artery supplying the most dyskinetic left ventricular area may improve left
ventricular contractile function, compared to no cell infusion in the control group, in
patients with old (>= 3 months) myocardial infarction.