Dr. Kay_Hyun Park, Chief, Department of Thoracic and Cardiovascular Surgery, Seoul National University Bundang Hospital Prof. Park is one of the most esteemed cardiac surgeons in South Korea. His reputation is based on his accomplishment in complex coronary artery bypass grafting with the use of arterial grafts and the off-pump technique, reconstructive surgery of cardiac valves, and on top of these, aortic surgery. His team has been accumulating the largest volume and the best outcomes in the field of aortic dissection and thoracic/thoracoabdominal aneurysms. In addition to the conventional open surgery, his current interest is the less-invasive treatment of aortic diseases with endovascular (stent grafting) or hybrid repair.