Results of treatment of 771 patients with external intestinal fistulas were analyzed. Duodenal fistulas were diagnosed in 47 patients, small-intestinal - in 366, large-intestinal - in 329, mixed - in 26, combined - in 3. Patients were divided into 2 groups: group 1 - 341 patients treated from 1983 to 1992, group 2 - 430 patients treated from 1993 to 2002. In group 1 - 294 (86.2%) patients underwent surgery, in group 2 - 405 (94.2%) patients. Differential approach to choice of treatment method, intraaortic therapy before and after surgery, use of developed devices for treatment of non-formed fistulas permitted to improve results of treatment and to reduce lethality from 10.3% in group 1 to 3,3% in group 2.