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      Risk assessment for acute kidney injury after allogeneic hematopoietic stem cell transplantation based on Acute Kidney Injury Network criteria.

      Internal medicine (Tokyo, Japan)
      Acute Kidney Injury, epidemiology, etiology, mortality, Adolescent, Adult, Child, Cystitis, Female, Graft vs Host Disease, Hematopoietic Stem Cell Transplantation, Hepatic Veno-Occlusive Disease, Humans, Male, Middle Aged, Multivariate Analysis, Proportional Hazards Models, Risk Assessment, Survival Analysis, Transplantation, Homologous, Young Adult

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          This is a retrospective study for risk assessment of acute kidney injury after allogeneic hematopoietic stem cell transplantation (allo HSCT) based on the Acute Kidney Injury Network (AKIN) criteria. Two hundred and eighty-nine consecutive patients who received allo HSCT were studied retrospectively to identify the risk factors for AKI according to the AKIN criteria. The incidence of AKI based on AKIN staging and overall survival (OS) was evaluated using Cox proportional hazard regression models treating each AKIN stage as a time-dependent covariate. We identified a total of 180 patients who developed AKI within 100 days after allo HSCT; AKI was classified as stage 1 in 88 patients (30.5%), stage 2 in 46 patients (15.9%) and stage 3 in 46 patients (15.9%). Patients who developed stage 3 AKI had a significantly worse survival compared to those who developed no AKI or lower stage AKI (HR: 7.6, 95%CI: 4.8-12.1; p<0.001). Multivariate analysis for risks for developing AKI revealed an episode of sepsis or sinusoidal obstruction syndrome (SOS) and the use of liposomal amphotericin as a major cause of the severe stage of AKI. On the basis of our analysis, sepsis, hemorrhagic cystitis, and acute GVHD were associated with severe AKI, and SOS was associated any stage of AKI.

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