Allogeneic blood transfusion in 163 children with acute lymphocytic leukemia (a STROBE-compliant article)

Little research has been done about the effects of allogeneic blood transfusion (ABT) on the recurrence and prognosis in the cases with childhood acute lymphocytic leukemia (cALL). In order to provide a basis for clinical safe blood transfusion, the data of 163 cases with cALL were retrospectively analyzed to explore the issue.The data of 163 cases with cALL between 2006 and 2011 were retrospectively analyzed. According to the frequency of blood transfusion, the 163 cases were divided into 4 groups including non-transfusion group, 1 to 10-time transfusion group, 11 to 25-time transfusion group, and >25-time transfusion group. Survival rates were compared with Log-Rank test. Cox regression analysis was used in the effects of risk factors on recurrence and death.ABT was performed in 152 cases with cALL (93.25%). In low-risk and intermediate-and-high risk cALL, the survival rate significantly decreased in all transfusion groups compared with that in non-transfusion group (all P < .01). Cox regression analysis showed that >25-time transfusion was an independent prognosis index of recurrence (odds ratio [OR] = 3.015, 95% confidence interval [CI]: 1.368-6.646) and death (OR = 3.979, 95% CI: 1.930-8.207) in cALL.Frequency of ABT appears to affect the recurrence and death in cALL. We should be careful with blood transfusion and avoid unnecessary blood transfusion as far as possible in the cases with cALL.