Randomized, double-blind, multicenter clinical trial that will evaluate the effects of immuno-nutrition in the preoperative period in patients with cancer of the upper digestive tract (esophagus, stomach, and pancreas). The aim is to compare the specific effect of the immunonutrients respect to an equivalent formula in caloric-protein value but without immunonutrients, in the surgical evolution of the cancer patient.
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Infectious complications
Timeframe: Up to 30 days post-operative
Surgical fistulas
Timeframe: Up to 30 days post-operative
Alfonso Vidal-Casariego, PhD, MD