Predictors of Delayed Graft Function in Renal Transplantation

Area of Science:

• Nephrology
• Transplantation Immunology
• Clinical Research

Background:

• Delayed graft function (DGF) is a significant complication following renal transplantation.
• Understanding DGF and its associated factors is crucial for improving patient outcomes and graft survival.

Purpose of the Study:

• To analyze data on DGF in kidney transplant recipients.
• To identify factors associated with the occurrence of DGF.

Main Methods:

• Retrospective case-control study over 11 years (2003-2014).
• Compared patients with immediate graft function (n=332) to those with DGF (n=165).
• DGF defined as need for hemodialysis within 7 days post-transplant; analyzed donor/recipient characteristics and procedural factors using logistic regression.

Main Results:

• 33% of patients experienced DGF, with a declining trend observed from 2003-2011.
• Significant risk factors for DGF included older donor and recipient age, longer cold ischemia times, more revision surgeries, and increased HLA mismatches (especially at the DR locus).
• Multivariable analysis identified ischemia time and HLA-DR locus mismatches as significant independent risk factors.

Conclusions:

• DGF is a common complication in renal transplantation, occurring in one-third of cases.
• Donor and recipient age, ischemia time, HLA mismatching, and revision surgery are important contributing factors to DGF.
• These findings highlight targets for intervention to reduce DGF incidence and improve transplant success.