He has a special interest in the diagnosis and surgical treatment of thoracic aortic aneurysms and serves as the surgery director of OHSU’s Thoracic Aorta Program. Dr. Song performs complex repairs and replacements of the aortic root and arch, including the Bentall procedure, aortic valve sparing procedures, aortic homograft root replacements, and the Ross procedure. He has been an active participant in the Society of Thoracic Surgeons Adult Cardiac Database. He conducts and publishes outcomes studies on patients undergoing cardiovascular surgery. He also directs basic research in the laboratory of the Division of Cardiothoracic Surgery, focusing on the use of bioengineered vascular conduits to reduce neointimal hyperplasia formation.