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Related Experiment Videos

Renal function: defining long-term success.

Julio Pascual1, Roberto Marcén, Joaquín Ortuño

  • 1Department of Nephrology, Ramón y Cajal Hospital, Ctra Colmenar Viejo Km9.1, Madrid 28034, Spain. jpascual.hrc@salud.madrid.org

Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association
|December 3, 2004
PubMed
Summary

Early assessment of renal function post-transplant predicts long-term graft survival. Tacrolimus-based immunosuppression, particularly with mycophenolate mofetil (MMF), shows superior graft survival rates compared to ciclosporin, even with similar serum creatinine levels.

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Area of Science:

  • Nephrology
  • Transplantation Immunology
  • Clinical Pharmacology

Background:

  • Chronic allograft nephropathy is a major cause of late graft loss, characterized by declining renal function.
  • Early post-transplant renal function, specifically serum creatinine levels, is a critical predictor of long-term kidney transplant outcomes.
  • Registry data and pooled analyses highlight the significance of serum creatinine concentrations at 6 or 12 months for predicting 5-year graft survival.

Purpose of the Study:

  • To evaluate the impact of different immunosuppressive therapies on long-term renal function and graft survival after kidney transplantation.
  • To compare the efficacy of tacrolimus-based regimens (with azathioprine or MMF) versus ciclosporin-based regimens in maintaining renal function and graft survival.
  • To determine if early post-transplant serum creatinine levels can predict long-term transplant success.

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Main Methods:

  • Retrospective analysis of 216 renal transplantations performed between 1996 and 2000.
  • Patients were treated with immunosuppressive therapy based on tacrolimus/azathioprine (n=51), tacrolimus/mycophenolate mofetil (MMF; n=70), or ciclosporin microemulsion/azathioprine/corticosteroids (n=95).
  • Graft survival and serum creatinine concentrations were assessed at 3 years post-transplant.

Main Results:

  • Tacrolimus/MMF therapy demonstrated the best 3-year graft survival.
  • Despite similar serum creatinine levels between tacrolimus (1.69 mg/dl) and ciclosporin (1.65 mg/dl) groups, the tacrolimus group had significantly higher functioning graft rates (84% vs 67%, P=0.007).
  • Early serum creatinine levels (as early as 1 month) may predict long-term survival.

Conclusions:

  • Tacrolimus-based immunosuppression, particularly when combined with MMF, offers superior graft survival compared to ciclosporin-based regimens.
  • Good long-term renal function can be maintained with tacrolimus as the cornerstone of immunosuppression, often without needing CNI minimization strategies.
  • Early post-transplant renal function monitoring is crucial for predicting long-term kidney transplant outcomes.