循证外科是自20世纪80年代由经验医学向循证医学转变过程中的衍生产物。目前,尽管许多外科医生对循证外科还比较陌生,但从循证外科发展的趋势来看,循证医学终将成为外科医生进行临床决策的有力工具之一[1]。自从1991年Kitano等[2]完成了第1例腹腔镜辅助胃癌根治术 Evidence-based surgery is a derivative of the evolution from empirical medicine to evidence-based medicine since the 1980s. Although many surgeons are still unfamiliar with evidence-based surgery, evidence-based medicine will eventually become a powerful tool for surgeons to make clinical decisions, based on the evidence-based trend of surgical development. Since 1991, Kitano et al [2] completed the first case of laparoscopic-assisted radical gastrectomy