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[Leukocyte filtration in elective colorectal surgery. Reduced transfusion associated immunosuppression after bedside
L S Jensen1, M E Hokland, H J Nielsen
1Arhus Universitetshospital, Arhus Kommunehospital, kirurgisk gastroenterologisk afdeling L.
Insights
Leukocyte filtration of blood transfusions prevents immune suppression and postoperative infections in colorectal surgery patients. This effective filtration method abolishes transfusion-associated immunosuppression, enhancing patient outcomes.
Area of Science:
- Immunology
- Transfusion Medicine
- Surgical Oncology
Background:
- Blood transfusions are common in surgery.
- Whole blood transfusions may impact immune function.
- Leukocyte filtration is a potential method to mitigate transfusion-related effects.
Purpose of the Study:
- To investigate immune parameter changes in patients receiving whole blood versus leukocyte-filtered blood transfusions.
- To assess the impact of transfusion type on postoperative infectious complications.
Main Methods:
- Randomized controlled trial involving 60 colorectal surgery patients.
- Monitoring of immune parameters (lymphocyte proliferation, CD4+/CD8+ ratio, cytokine levels) pre- and post-transfusion.
- Assessment of infectious complications.
Main Results:
- Whole blood transfusion significantly decreased lymphocyte proliferation and CD4+/CD8+ ratio.
- Whole blood transfusion increased soluble interleukin-2 receptor and interleukin-6 levels.
- Whole blood transfusion correlated with increased postoperative infectious complications.
- Leukocyte-filtered blood transfusion resulted in minimal immune changes and no infectious complications.
Conclusions:
- Leukocyte filtration effectively abolishes transfusion-associated immunosuppression.
- Leukocyte filtration prevents postoperative infectious complications in surgical patients.
- This technique offers a safer alternative for blood transfusions during surgery.
Abstract:
The objective of the study was to investigate certain immune parameters in patients undergoing elective colorectal surgery and receiving either whole blood transfusion or leucocyte-filtrated blood. Sixty consecutive patients were randomly allocated to receive either whole blood transfusion or leucocyte-filtrated blood leucocyte when transfusion was indicated. The immune parameters were investigated on the day of surgery and on day 3, 7 and 30 postoperatively. Transfusion with whole blood was followed by a significant decrease in lymphocyte proliferation and CD4+/CD8+ ratio (p < 0.01) as well as a significant increase in soluble interleukin-2 receptor and interleukin-6 (p < 0.01). Furthermore transfusion with whole blood was accompanied by a significant increase in postoperative infectious complications (p < 0.01). Patients transfused with leucocyte-filtrated blood had only minor and passing changes in the immune parameters and developed no infectious complications, indicating that effective leucocyte filtration abolishes transfusion-associated immunosuppression.
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