There is a close relationship between cardiovascular disease and diabetes, so what is the difference between coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI) in improving the long-term prognosis of diabetic patients with complex coronary artery disease? At the TCT 2021 conference, Professor Patrick W. Serruys of the National Heart and Lung Institute of Imperial College London announced the 10-year follow-up results of his team's related research. This journal specially invited him to conduct an exclusive interview.