Immunonutrition in patients undergoing major upper gastrointestinal surgery: a prospective double-blind randomised...

Area of Science:

• Surgical Nutrition
• Gastrointestinal Surgery
• Immunonutrition

Background:

• Immunonutrition may reduce inflammation and hospital stay in surgical patients.
• Previous studies used heterogeneous patient groups and varied immunonutrition formulas.
• The specific impact of a defined immunonutrition formula in major upper GI surgery requires investigation.

Purpose of the Study:

• To assess the effect of a specific immunonutrition formula on inflammatory and immune responses in patients undergoing major upper GI surgery.
• To compare clinical outcomes, including length of hospital stay and adverse events, between patients receiving immunonutrition and conventional feeding.
• To evaluate changes in key nutritional and inflammatory markers.

Main Methods:

• Prospective, double-blind, randomized controlled study comparing an immunonutrition feed to a control feed.
• Participants: Patients undergoing major upper gastrointestinal surgery.
• Primary endpoints: C-reactive protein (CRP), prealbumin, and retinol-binding protein (RBP) levels; Secondary endpoints: clinical outcomes and nutritional markers.

Main Results:

• No statistically significant differences in primary inflammatory or nutritional markers between groups.
• No difference in length of hospital stay or other clinical outcomes observed.
• Vitamin C levels were significantly higher in the immunonutrition group; both feeds were well-tolerated.

Conclusions:

• The studied immunonutrition formula did not demonstrate significant benefits in inflammatory markers, nutritional status, or clinical outcomes in major upper GI surgery.
• Potential reasons for negative findings include insufficient study power or patient heterogeneity.
• Further multi-center trials with homogeneous patient groups are recommended to clarify the role of immunonutrition in this surgical population.