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Los Angeles, California, May 14, 2012 - Surgeon Lew Cohen prepares patient Robert Noonan for a Transcatheter  Aortic Valve Replacement (TAVR) under the direction of Raj Makkar, MD, Director, Interventional Cardiology at Cedar-Sinai Heart Institute. He is testing this non-surgical procedure on intermediate risk patients. Typically valve replacement requires open heart surgery.