我院自 1989年以来行左半结肠癌一期切除吻合术 180例 ,术后 5～ 7天出现吻合口瘘 9例 ,吻合口瘘的发生率为 5 %( 9/180 )。我们采用经肛门置双管于吻合口上下的引流方法治疗吻合口瘘 ,疗效满意 ,现报道如下。1　临床资料1.1　一般资料本组男性 6例 ,女性 3例 ,年龄最小 17岁 , In our hospital since 1989, 180 patients underwent primary resection and anastomosis of the left colon cancer. There were 9 anastomotic fistulas 5 to 7 days after operation, and the incidence of anastomotic fistula was 5% (9/180). We use the double-tube anus set at the anastomosis up and down the drainage method for the treatment of anastomotic fistula, satisfactory results are reported below. 1 Clinical data 1.1 General Information The group of 6 males and 3 females, the youngest 17 years old,