Allogeneic Multipotent Stromal Cell Treatment for Acute Kidney Injury Following Cardiac Surgery

Inclusion Criteria: * Documented ischemic coronary heart and/or valvular heart disease:Acceptable candidate for elective CABG and/or Cardiac Valve Surgery * Patients at high risk for post-op AKI:Age 18 or older if at high risk for post-op AKI because of underlying Diabetes mellitus (type I or II), CHF, COPD Chronic Kidney Disease (CKD) stage 1-4 * Patients at high risk for post-op AKI :age \> 65 or combinations * Patent femoral artery without aortic aneurysm * Ability to give informed consent. Exclusion Criteria: * Presence of ongoing local or systemic infection * Younger than 18 * Participation in another clinical trial * Pregnancy * Contraindication to general anesthesia * Prisoner * Dialysis patient (CKD-6) or patient with CKD-5 * History of malignancy except non-melanoma skin cancer * Occluded Groin arteries * Uncontrolled Diabetes mellitus (HbA1c \> 10, history of diabetic ketoacidosis or osmolar coma within the last three months) * Non-healing foot ulcers. * Clinical evidence of severe peripheral vascular disease (ABI \< 0.3) * Coronary Angiogram \< 7 days before surgery * Inadequate pre-operative time to obtain baseline kidney function data due to urgent/emergent surgery * Unstable myocardium (evolving myocardial infarction), cardiogenic shock