Chronic Ischemic Heart Disease Clinical Trial
Official title:
Prospective Controlled Trial of Intra-Myocardial Infusion of Bone Marrow Derived Autologous CD133+ Selected Cells During Trans-Myocardial Laser Revascularization (TMR) in Patients With Chronic Ischemic Heart Disease
Assess the safety and effectiveness of stem cell application with regard to improvement in regional myocardial function in patients receiving Trans-Myocardial Laser Revascularization (TMR) and stem cells.
Multiple case experiences and studies have been published reviewing clinical experiences with Carbon Dioxide Trans-Myocardial Laser Revascularization (TMR) and autologous bone marrow derived cell application. These experiences have demonstrated perfusion improvements, ejection fraction improvements and improvements in angina or heart failure symptoms. The investigators elected to examine the use of CD133 positive (CD133+) BM-derived stem cells because of their pluripotent nature and the fact that during the CD133 selection process inflammatory cells present in the bone marrow are being discarded. CD133+ is a recently discovered marker for more primitive bone marrow derived multipotent stem and endothelial progenitor cells and is of particular interest in studies directed to therapeutic angiogenesis, as these cells have been shown to differentiate into endothelial and myogenic cell lines. Multiple studies have utilized BM derived cells for myocardial regeneration. Patients who received CD133+ cells showed improved perfusion at injection sites of stem cells leading to a significant increase in volume of left ventricular ejection fraction, regional wall motion in the infarct zone, and a reduction in end systolic left ventricular volume. ;
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