Diseases of the colon and rectum
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Meta Analysis
Effect of perioperative blood transfusions on recurrence of colorectal cancer: meta-analysis stratified on risk factors.
This study was undertaken to evaluate the influence of perioperative blood transfusions on colorectal cancer recurrence. ⋯ A consistently detrimental association was discovered between the use of perioperative blood transfusion and colorectal cancer recurrence. Further studies are needed to confirm that blood transfusion has a causal association.