Detailed Cause of Donor Ineligibility in Living Donor Kidney Transplants: A Retrospective, Single-Center Cohort Study

Background. Living kidney donors are evaluated to determine their physical and psychological suitability for transplantation and ensure their safety. During this process, we frequently encounter cases where a donor is found to be ineligible. In this study, we surveyed donors who are ineligible for transplantation at our hospital to educate patients, their families, and medical staff regarding transplantation in the future. Methods. We examined the proportion of ineligible donors among 237 potential donors who visited our hospital between January 2002 and March 2022. Data were collected retrospectively from electronic medical records and evaluated from various aspects such as age, body mass index, medical history, medications, and renal function. Results. The mean age at presentation was 55.5 years, the male -to -female ratio was 1:1.6, and no significant difference was found between the ineligible and eligible donor groups. The transplant ineligibility rate was 23.6%, and the categories were for medical, backout, immunologic, and recipient -related reasons, in descending order. Furthermore, a low glomerular filtration rate (GFR) was the most common cause of medical cases. Conclusions. Many patients were judged ineligible because of lifestyle -related diseases such as low GFR, diabetes mellitus, and obesity. Therefore, thorough patient education should be conducted using these data as a reference to reduce the number of donors ineligible because of lifestyle -related diseases.