On-X Valve Videos Minimally Invasive Mitral Valve Replacement Using On-X® Mitral Heart Valve Cases Performed by: Mario Castillo-Sang, MD Dr. Glenn Barnhart: Double Valve Implantation Using On-X Aortic and Mitral Heart Valves Dr. Glenn Barnhart: On-X Mitral Valve Replacement Video Dr. Barnhart Aortic Valve Replacement Video On-X Mitral Valve Replacement: 5 Case Videos On-X Ascending Aortic Prosthesis Implant On-X Aortic Valve AVR via MIS Procedure