Long-lasting improvement of myocardial perfusion and chronic refractory angina after autologous intramyocardial PBSC transplantation

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Abstract
We report the case of a 60-year-old man with patent coronary by-pass grafts on the left anterior descending and circumflex coronary arteries, who experienced recurrent Canadian class IV angina refractory to medical and interventional treatments for a dominant right coronary artery occlusion. He underwent autologous PBSC transplant into the inferior ventricular wall through a minimally invasive approach as a stand-alone therapy, in an attempt to induce therapeutic angiogenesis. Six months after the operation, angina significantly ameliorated; scintigraphy and coronary angiography showed a marked improvement in perfusion of the target injection area. These benefits had persisted at 25 months after stem cell transplant.