Journal
BONE MARROW TRANSPLANTATION
Volume 55, Issue 7, Pages 1264-1271Publisher
SPRINGERNATURE
DOI: 10.1038/s41409-020-0843-3
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Acute kidney injury (AKI) increases early mortality in allogeneic hematopoietic cell transplant (allo-HCT) recipients and may accelerate chronic kidney disease (CKD) development. We analyzed prospective variables related to AKI and CKD in 422 allo-HCT recipients to establish risk factors of severe acute renal failure and CKD. Renal function and creatinine were periodically assessed from baseline till the last follow-up. Sixty-three patients (14%) developed severe AKI (AKI-3) at 100 days post transplant and 15% at 12 months. Variables associated with AKI-3 were age above 55 years [hazard ratio (HR): 2.4; p = 0.019], total body irradiation (TBI) (HR: 1.8; p = 0.044), high-risk cytomegalovirus reactivation (HR: 1.8; p = 0.041), and methotrexate as GVHD prophylaxis (HR: 2.1; p = 0.024). AKI-3 increased the mortality risk (HR: 2.5, 95% confidence interval: 1.9-3.4). The CKD prevalence in 161 living patients was 10.2% at the last follow-up and in most, CKD developed 1 year post HCT, independent of AKI. The CKD at 1 year post HCT was associated with increased mortality (HR: 3.54; p < 0.001). Interestingly, pretransplant CKD was associated with early mortality (HR: 5.6; p < 0.001). In fact, pre- and posttransplant CKD had independent unfavorable long-term outcomes. These pretransplant factors can potentially be targeted to improve allo-HCT outcomes.
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