Annals of surgery
-
Randomized Controlled Trial Clinical Trial
Blood transfusions and local tumor recurrence in colorectal cancer. Evidence of a noncausal relationship.
The authors analyzed the effect of blood transfusions on the pattern of colorectal cancer recurrence. ⋯ These findings suggest that the association between blood transfusions and prognosis in colorectal cancer is a result of the circumstances that necessitate transfusions, leading to the development of local recurrences, but not of distant metastases.