Factors influencing the acceptance of deceased donor kidney transplant offers in children - a vignette survey

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ID: 318236
2026
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Abstract
Abstract Background Donor kidneys are allocated to potential pediatric kidney transplant recipients based on criteria such as HLA immunology, but explicit guidance for accepting deceased-donor kidney offers is lacking. Methods A vignette survey was designed with a matrix of 128 fictitious kidney offers consisting of seven dimensions with two levels each: mismatches on HLA A, B, C (≤3/≥4); mismatches on HLA DR, DQ (≤2/≥3); donor estimated glomerular filtration rate (eGFR) (≥50/≤49 mL/min/1.73m²); donor age (≤1/2–50 years); recipient age (≤1/≥2 years); recipient status (preemptive/on dialysis); donor history of sepsis or bacterial infection (yes/no). Between December 2024 and February 2025, clinicians involved in pediatric kidney transplantation evaluated a randomly assigned set of 16 vignettes. Mixed-effects logistic regression assessed factors associated with acceptance. Results Forty participants from eleven allocation organizations in Europe, Iran and Canada, most commonly Eurotransplant (58%), including eight European countries, provided 533 evaluations (3–6 per vignette). In the multivariate analysis, four of the seven vignette dimensions decreased acceptance: ≥4 HLA A, B, C mismatches (p = 0.011), ≥3 HLA DR, DQ mismatches (p < 0.001), donor eGFR ≤49 mL/min/1.73 m² (p < 0.001), or donor age ≤ 1 year (p = 0.003). Recipient age, dialysis status, and donor sepsis/bacterial infection were not significant. Allocation organization and respondent characteristics (gender, experience) did not materially influence decisions. Conclusions This pilot study suggests that factors such as HLA mismatches, donor eGFR and donor age, consistently guided decisions, independently of participant’s allocation organization. This underscores the potential value of developing evidence-informed donor-offer acceptance guidelines and investigating the impact of these factors on kidney transplantation outcome.
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Authors Leonie Greipel, Xiaofei Liu, Evgenia Preka, Lena Brunkhorst, Burkhard Tönshoff, Dieter Haffner, Nele Kanzelmeyer
Journal clinical kidney journal
Year 2026
DOI
10.1093/ckj/sfag211
URL
https://doi.org/10.1093/ckj/sfag211
Keywords Keywords not found

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