Impact of acute kidney injury on long-term mortality after nonmyeloablative hematopoietic cell transplantation

Biol Blood Marrow Transplant. 2008 Mar;14(3):309-15. doi: 10.1016/j.bbmt.2007.12.492.


Acute kidney injury (AKI) occurs frequently after nonmyeloablative hematopoietic cell transplantation (HCT). The severity of AKI after nonmyeloablative HCT has association with short-term mortality. However, the long-term effect of AKI on survival after nonmyeloablative HCT is not known. We performed a retrospective analysis of patients who underwent an HLA matched nonmyeloablative HCT between 1997 and 2006. Patients were followed for a median of 36 (range: 3-99) months. AKI occurring up to day 100 was defined as a >2-fold increase in serum creatinine or requirement of dialysis. Of the 358 patients who were included in the analysis, 200 (56%) had AKI, 158 (44%) had no AKI. Overall, 158 patients (43%) died during follow-up. After controlling for potential confounders, the adjusted hazard ratio for overall mortality associated with AKI was 1.57 (95 % confidence interval [CI] 1.2-2.3; P = .0006). The adjusted hazards ratio of nonrelapse mortality (NRM) associated with AKI was 1.72 (95% CI 0.9-3.1; P = .07). AKI is an independent predictor of overall mortality after nonmyeloablative HCT. This finding reiterates the importance of identifying preventative strategies in nonmyeloablative HCT for attenuating incidence and severity of AKI.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Adult
  • Disease-Free Survival
  • Female
  • Follow-Up Studies
  • Hematologic Neoplasms / complications
  • Hematologic Neoplasms / mortality
  • Hematologic Neoplasms / therapy
  • Hematopoietic Stem Cell Transplantation*
  • Humans
  • Incidence
  • Kidney / injuries*
  • Kidney Diseases / etiology
  • Kidney Diseases / mortality*
  • Male
  • Middle Aged
  • Retrospective Studies
  • Severity of Illness Index
  • Survival Rate
  • Time Factors