Trends in Kidney Transplantation over the Past Decade

Abstract

Kidney transplantation offers patients with end-stage renal disease the greatest potential for increased longevity and enhanced quality of life; however, the demand for kidneys far exceeds the available supply. This has led to an increase in the number of people on waiting lists and an increase in waiting time. In the US, the overall median wait time was 2.85 years in 2004. The projected median waiting time for adult patients awaiting a deceased donor kidney in 2006 is 4.58 years. The renal transplant community has pursued multiple avenues in an attempt to increase the donor pool, but this remains a major challenge. In the last decade, the number of live donor kidney transplants performed in the US and Canada has doubled and represents just over 40% of all donor kidneys. Among deceased donor kidneys, the largest percentage increases were seen in expanded criteria donor and donation after cardiac death kidneys. In the last decade, the age distribution among donors, and among patients on waiting lists or receiving a renal transplant, has shifted towards older age groups. There have been dramatic shifts in baseline immunosuppression with increased usage of induction agents and the nearly universal replacement of azathioprine by mycophenolate. Additionally, tacrolimus use has increased from 13% to 79% at discharge, while ciclosporin (cyclosporine) use has fallen from 76% to 15%. Although 1-year graft survival rates are excellent, only modest improvements have been observed in long-term graft survival rates in the last decade. Thus, efforts have shifted from improving early graft outcomes to altering the natural course of late graft failure. Death of transplant recipients from cardiovascular disease, infection and cancer remains an important limitation in kidney transplantation. Continued success in kidney transplantation will require increased numbers of donors, both living and deceased, as well as reduction in the primary causes of late transplant loss, namely premature patient death with a functioning graft and chronic allograft nephropathy.

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Acknowledgements

The author would like to thank Dr Cathryn Jarvis, Dr Isabella Steffensen and Science & Medicine Canada for assistance with this manuscript. The preparation of this manuscript was supported by an unrestricted grant from Wyeth Canada. Dr Knoll has received honoraria and participated in clinical trials funded by Astellas, Novartis and Wyeth.

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Correspondence to Dr Greg Knoll.

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Knoll, G. Trends in Kidney Transplantation over the Past Decade. Drugs 68, 3–10 (2008). https://doi.org/10.2165/00003495-200868001-00002

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Keywords

  • Sirolimus
  • Kidney Transplant Recipient
  • Donor Kidney
  • Deceased Donor
  • Chronic Allograft Nephropathy