Home > Current Controversies > Cardiac Stem Cell Therapy-How it works Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on May 12, 2010 by APatel, Views: 5323 Cardiac stem cell therapy, how it works. Dr. Amit Patel, a heart surgeon from Univ. of Utah, discusses how stem cells are being tested in patients with heart disease, including people with a weak heart muscle.