Kunming University of Science and Technology, First People’s Hospital of YunNan Province, Department of Geriatrics, Kunming University of Science and Technology, Kunming University of Science and Technology, Kunming University of Science and Technology, First People’s Hospital of YunNan Province, Department of Cardiothoracic Surgery, Chongqing Medical University, Kunming University of Science and Technology - First People's Hospital of Yunnan Province, Chongqing Medical University and Kunming University of Science and Technology, First People’s Hospital of YunNan Province, Department of Cardiothoracic Surgery