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The Impact of Post-transplant Hemoglobin Level on Renal Allograft Outcome

The Impact of Post-transplant Hemoglobin Level on Renal Allograft Outcome
Issue Date
Elsevier Science B.V
Transplantation Proceedings, 2013, 45(4), P.1553-1557
Background. Anemia is a common complication of chronic renal disease and renal transplantation. Early post-transplant anemia is the consequence of blood loss, immunosuppressant therapy, and failure to produce sufficient erythropoietin. Late post-transplant anemia has been attributed to drug therapy, renal dysfunction, and infection. The effect of post-transplant anemia on renal allograft survival and acute rejection rates is not established. The aim of this study was to examine the impact of post-transplant anemia on renal function and allograft outcomes. Materials and methods. We included 411 patients who underwent living or deceased donor renal transplantations in our center from April 1990 to March 2010. The patients were divided into 2 groups according to their postoperative hemoglobin level at 1 month: anemic group (<12.0 g/dL in men, <11.0 g/dL in women) and nonanemic group (>= 12.0 g/dL in men, >= 11.0 g/dL in wemen). The outcome measures included postoperative serum creatinine levels at 12 and 36 months, acute and chronic rejection rates, as well as long-term graft survival. Results. The acute and chronic rejection rates were significantly higher in the anemic group: 28.1% versus 19.7% (P = .000) and 24.1% versus 19.7% (P = .027), respectively. Postoperative serum creatinine levels at 12 and 36 months were not significantly different in patients with functioning grafts regardless of their anemia status (P = .530 and P = .430, respectively). Graft survival was lower with anemia: 85.4% versus 93.8% at 5 years, and 74.8% versus 83.5% at 10 years (P = .040). Conclusions. Post-transplant anemia was associated with poorer renal function at 12 months, higher acute rejection rates, and worse long-term renal allograft outcomes compared with subjects displaying normal hemoglobin levels.
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