In a prospective , randomized , double-blind study , @ patients with gastric and colorectal cancer receiving elective surgery were recruited and randomly assigned to either the study group , receiving the n-@ PUFAs enriched intravenous fat emulsion ( IVFE ) , or the control group , receiving a lipid emulsion comprised of soybean oil and MCTs ( @ - @gkg-@day-@ ) as part of total parenteral nutrition ( TPN ) regimen from surgery ( day -@ ) up to post-operative day @ .