Results: One hundred eighty-three patients (91 in SEN, 92 in IMEN group, 69 F, 114 M, mean age 61.2) of 196 initially enrolled were analyzed. There were 2 deaths in both groups. Median postoperative hospital stay was 12.4 days (SD 5.9) in SEN group and 12.9 days (SD 8.0) in IMEN group (p=0.42). Complications were observed in 21 patients (23.1%) in SEN and 23 (25.2%) in IMEN group (p>0.05). 4 (4.4%) patients in SEN group and 4 (4.4%) in IMEN had surgical complications (p>0.05). There were no differences in liver and kidney function, visceral protein concentration and treatment tolerance.