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Slow early graft function: a neglected entity after renal transplantation.
1Renal Transplant Unit, Department of Surgery, University of Cape Town, and Groote Schuur Hospital, Cape Town, South Africa.
Nephron. Clinical Practice
|August 28, 2012
Summary
Poor early graft function (PEGF) after renal transplantation, including slow graft function (SGF), is linked to worse long-term outcomes. This highlights the need for improved prevention and management strategies for PEGF.
Area of Science:
- Nephrology
- Transplantation Immunology
- Clinical Outcomes Research
Background:
- Early graft function (EGF) after renal transplantation is categorized into immediate (IGF), slow (SGF), and delayed (DGF).
- While DGF is well-documented, SGF is a poorly understood entity.
- Conflicting definitions and inconsistent results exist regarding the long-term significance of EGF.
Purpose of the Study:
- To investigate risk factors associated with poor early graft function (PEGF).
- To determine the impact of PEGF on long-term renal transplant outcomes.
Main Methods:
- Retrospective analysis of adult renal transplant recipients from 2004-2008.
- EGF classification based on day 5 serum creatinine: IGF (<150 µmol/l), SGF (>150 to <450 µmol/l), DGF (>450 µmol/l or dialysis).
- PEGF comprised DGF and SGF; good EGF (GEGF) was IGF.
Main Results:
- Cold ischaemic time was a significant risk factor for PEGF in cadaveric donors (16h vs. 12h).
- One-year eGFR was significantly lower in PEGF (SGF/DGF) compared to GEGF (IGF) groups.
- PEGF was associated with longer hospital stays, and acute rejection independently lowered 1-year eGFR.
Conclusions:
- Slow graft function (SGF) is associated with delayed graft function (DGF) and should be classified as poor early graft function (PEGF).
- Poor early graft function (PEGF) is linked to worse long-term renal transplant outcomes.
- Enhanced strategies for PEGF prevention and management are crucial.
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