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Combined Pancreas-kidney Transplantation After Rescue Allocation: The Eurotransplant Experience: A Retrospective
Volker Assfalg1,2, Felix Stocker1,2, Norbert Hüser1,2
1Technical University of Munich (TUM), TUM School of Medicine and Health, TransplanTUM-Munich Transplant Center, Klinikum rechts der Isar, Munich, Germany.
Transplantation
|March 10, 2025
Summary
Simultaneous pancreas-kidney transplantation (SPKT) outcomes are comparable between standard and rescue allocation methods. Donor and recipient age significantly impact SPKT success rates.
Area of Science:
- Nephrology
- Transplantation immunology
- Endocrinology
Background:
- Simultaneous pancreas-kidney transplantation (SPKT) is a primary treatment for type 1 diabetes mellitus with end-stage renal disease.
- Eurotransplant implemented pancreas rescue allocation to optimize organ use, including organs of potentially lower quality.
- This study assesses SPKT outcomes comparing rescue allocation strategies (recipient-oriented extended vs. competitive) with standard allocation.
Purpose of the Study:
- To evaluate the efficacy of SPKT following pancreas rescue allocation compared to standard allocation.
- To determine if patient, pancreas graft, and kidney graft survival rates differ between allocation types.
- To identify key donor, recipient, and transplant-related factors influencing SPKT outcomes.
Main Methods:
- Retrospective analysis of 1504 SPKTs from 2013-2021 across multiple centers.
- Outcomes assessed based on allocation type: standard, recipient-oriented extended rescue, and competitive rescue.
- Multivariable analyses used to explore influencing variables on patient and graft survival.
Main Results:
- No significant differences in patient, pancreas graft, or kidney graft survival between standard and rescue allocation methods.
- Rescue allocation donors were older, had higher BMI, and higher smoking rates, with fewer HLA matches.
- Competitive rescue allocation led to longer cold ischemic times; recipient-oriented rescue did not. Pancreas recipients under rescue allocation had shorter wait times.
- Higher donor age correlated with poorer graft survival; higher recipient age linked to increased mortality despite better pancreas graft survival.
Conclusions:
- SPKT outcomes, including patient and graft survival, are comparable between standard and rescue allocation strategies.
- Donor and recipient age are critical factors influencing the overall success of simultaneous pancreas-kidney transplantation.
- Rescue allocation is a viable strategy for increasing organ utilization without compromising SPKT success rates.
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