Evaluation of efficacy, safety of SMOF 20% vs. Intralipid 20% during parenteral nutrition of moderate or major abdominal surgery: a prospective, controlled, randomised, double-blind, multicentre trial

INTERVENTION: Experimental group:SMOFlipid 20%;Control group:SMOFlipid 20%; CONDITION: Moderate or major abdominal surgery. PRIMARY OUTCOME: concentration of triglycerides, prealbumin, transf; SECONDARY OUTCOME: The serum levels of total cholesterol, total prote;Blood free fatty acid spectrum;LTB5 / LTB4, TXB3 / TXB2 ratio;IL‐1, IL‐2, IL‐6 and CD4 / CD8 and HLA‐DR level; INCLUSION CRITERIA: Moderate or major abdominal surgery; patients to be treated with post‐operative total parenteral nutrition over 5 days at least; 18‐80 years old; patients has given his/her written informed consent.