Hussein Elkhayat1, Diego Gonzalez-Rivas2,3. 1. Cardiothoracic Surgery, Faculty of Medicine, Assiut University, Assiut, Egypt. 2. Department of Thoracic Surgery and Minimally Invasive Thoracic Surgery Unit (UCTMI), Coruña University Hospital, Coruña, Spain. 3. Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China.