Long-term Evaluation of Patients Receiving Bone Marrow-derived Cell Administration for Heart Disease

In detail, the following procedures are performed during the clinical visits and, if necessary, at additional contacts: * periodic physical examination and blood tests * non-invasive imaging studies may include echocardiography and magnetic resonance imaging * electrocardiogram at rest and during treadmill testing (may include spiroergometry testing) * interrogation of implanted defibrillators / pacemakers for monitoring of arrhythmias