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[Growth of transplanted kidneys]
Insights
Kidney transplant recipients showed that cold ischemia time negatively impacts kidney function long-term. Donor-recipient age mismatch also affects transplant outcomes, highlighting critical factors for successful kidney transplantation.
Area of Science:
- Nephrology
- Transplantation immunology
- Clinical research
Context:
- Assessing long-term kidney transplant outcomes is crucial for patient management.
- Evaluating factors influencing graft function post-transplantation informs clinical practice.
Purpose:
- To correlate kidney function markers (GFR, ERPF) with pre-transplant factors in pediatric kidney transplant recipients.
- To investigate the impact of HLA-identity, transfusion units, cold ischemia time, and donor-recipient age difference on long-term graft function.
Summary:
- Kidney function, measured by 51Cr-EDTA-clearance (GFR) and 125J-hippuran clearance (ERPF), was assessed two or more years post-transplantation in 14 children.
- No correlation was found between HLA-identity or transfusion units and clearance results.
- A significant inverse relationship was observed between cold ischemia time (CIT) and both GFR (r = -0.53) and ERPF (r = -0.64).
- Adult recipients of pediatric donor kidneys exhibited poorer clearance results compared to other donor-recipient age combinations.
Impact:
- Identifies cold ischemia time as a critical factor affecting long-term kidney transplant function.
- Suggests that donor-recipient age matching may be important for optimizing transplant outcomes.
- Provides evidence to guide strategies for improving graft survival and function in kidney transplantation.
Abstract:
Two or more years after a kidney transplantation were determined the GFR as 51Cr-EDTA-clearance and the effective renal plasma flow as 125J-hippuran clearance. In 14 children the results of the clearance with the HLA-identity (HLA-I), the quantity of the transfusion units (TU) received before the transplantation and the duration of the cold ischaemia time (CIT) were correlated. While with HLA-I and TU no connections could be proved, the results of the clearance seemed to be reversedly proportional to the CIT (r = -0.53 and -0.64 for GFR and ERPF) for a longer time after transplantation. Different age between donor and recipient shows worse results of clearance in the group of the adults who received a kidney of a child, in contrast to the other three possible combinations of the kidney transplantation.