Quality Assessment of Donor Kidneys and the Tendency of Kidney Acceptance: A Single-Center Experience

Purpose. The increasing age of donors and the increasing tendency of comorbidities requires an extension in acceptance criteria. In this review, the tendency for acceptance and refusal was analyzed by examining reasons for declining donor kidneys at the kidney transplantation center in Debrecen. This analysis aimed to assess the quality of donor kidneys and indicate why twothirds of donated organs were refused. Method. Our center in Debrecen received 535 kidney offers (based on exclusion criteria) between November 2016 and August 2019, which were retrospectively analyzed. Donor kidneys were evaluated using expanded criteria donor, kidney donor profile index (KDPI), and kidney donor risk index criteria systems. Results. Thirty-five percent (n = 189) of the kidneys offered to the center in Debrecen had been approved in advance, and later 63% (n = 119) were transplanted. Using the KDPI system, 41% of donors had a KDPI above 85, of which 23% were accepted, while acceptance of kidneys with a KDPI of 0 to 35 was around 70%. When examining causes of donor kidney refusal, 90% of the organs had donor quality problems, 13% had logistical cause (long cold ischemic time, large age difference between donor and recipient), and 10.5% had immunologic cause. In 13% of cases, the refusal of donor organs was due to the coexistence of several problems. Conclusion. Our data showed that high-risk donor organs were being refused in our center; however, they are being transplanted at a higher rate in other Eurotransplant centers. The decision to refuse or accept donor organs depends on several factors, including expected waiting time, patient's clinical characteristics, and quality of life.