Prof. Mæng, of the Department of Clinical Medicine, conducts research into cardiovascular disease in patients with diabetes, heart failure and cardiac fibrillation. On the basis of data from approximately 200,000 patients and clinical studies, he identifies patients with a high risk of developing cardiovascular disease, or who have a high risk of complications. He also undertakes the treatment of cardiac patients in his capacity as consultant in heart disease at Aarhus University Hospital.