Prophylaxis of venous thromboembolism in patients after abdominal surgery        WU Guo-hao.Department of Surgery, Zhongshan Hospital, Fudan University,Shanghai 200032,China
Abstract    Venous thromboembolism (VTE) is one of the most common post-operative complications in patients undergoing abdominal surgery, it causes more deaths and worsens the outcomes of the patients. Including malignancy, obesity, hypertension, diabetes and traumas caused by operations are the most common risk factors of VTE. Effective prophylaxis including mechanical methods and anticoagulants heparin, can markedly reduce the incidence of VTE. So it is very important for surgeons to be aware of the risk factors and make sufficient measures against VTE to improve the outcomes of the patients undergoing abdominal surgery.