Dr. Hirota is a cardiovascular surgeon at Hayama Heart Center in Japan, one of the leading heart centers in Japan in which numerous cardiac surgeries, especially for patients with acquired heart disease, are performed, and characteristically, surgical ventricular restoration for patients with severe ischemic and non-ischemic cardiomyopathy, which has been performed for over 10 years. Dr. Hirota graduated at the Okayama University School of Medicine in 1996. He took part in a large number of cardiovascular surgeries associated with pediatric and adult heart disease, as well as vascular disease. His post-graduate research theme was on hemodynamic analysis of global ischemic hearts for heart transplantation and elucidation of endothelium-derived hyperpolarizing factor for coronary microcirculation. Dr. Hirota currently works as a cardiovascular surgeon.