Angiogenesis, a form of gene therapy, helps heart patients grow, repair and restore new blood vessels.
Angiogenesis grows new blood vessels using substances called growth factors, which deliver instructions to the patient's affected cells so they grow. This type of gene therapy allows the body to heal itself.
Your doctor injects the growth factors directly into the heart or leg muscles. Or, he or she can administer them intravenously through catheters into the arteries of the heart.
Angiogenesis is ideal for patients who have a blockage in a major coronary artery and have developed collaterals. Collaterals are smaller blood vessels the body grows over time to help compensate for the loss of circulation.