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During the congress, E-Posters will be accessible to all participants on the congress website 24/7, as well as in the E-poster stations in the congress center.
Preparing your E-Poster
Please review the E-Poster format requirements carefully when preparing your E-Poster. Should your E-Poster not meet the mentioned requirements, it may not be displayed as described above.
E-Poster Submission Deadline
Please prepare and upload your E-Poster no later than March 14, 2026 11.59PM CET. After this date, you will no longer be able to prepare and upload your E-poster and it will not be displayed and accessible on the congress website.
Please follow the instructions below to input your abstract title.
Abstract titles should be brief and reflect the content of the abstract.
In countries facing an aging society, kidney transplants from elderly living kidney donors (LKDs) are increasing, due to severe organ shortages. However, few reports exist on the safety of donor nephrectomy in LKDs aged 70 years or older, particularly regarding changes in estimated glomerular filtration rate (eGFR). This study investigated the outcomes after donor nephrectomy in LKDs aged 70 years or older.
This single-center, retrospective, observational study included LKDs undergoing living donor kidney transplantations between January 2009 and December 2023. LKDs were categorized into an elderly group (71–80 years at donation) and a non-elderly group (70 years or younger). Preoperative characteristics and postoperative outcomes, including renal function, complications, development of end-stage kidney disease (ESKD), and mortality, were evaluated.
Among 278 LKDs followed for a mean of 6 years, 23 were in the elderly group (8%) and 255 were in the non-elderly group (92%). The mean ages of 74 ± 2.9 years and 56.1 ± 8.7 years, respectively. 68.8% of LKDs were followed up for 10 years. eGFR declined approximately 31% in both groups after donation. Over the next 9 years, the decline in eGFR was -0.04 mL/min/1.73m2 in the non-elderly group and -0.38 mL/min/1.73m2 in the elderly group (p=0.47). Three deaths occurred in the non-elderly group and two in the elderly group; no association was found between renal function decline and the causes of death. One in the non-elderly group progressed to ESKD due to onset of IgA nephropathy. Hypertension was more prevalent in the elderly group (16 patients, 70%) compared to the non-elderly group (69 patients, 27%) (p<0.001). At final observation, urinary protein was 0.1 g/gCr in the non-elderly group but significantly higher at 0.35 g/gCr in the elderly group (p<0.001).
No ESKD was observed in elderly LKDs during this observation period. Therefore, donation from elderly LKDs is considered acceptable under conditions of organ shortage. However, it is important to note that elderly LKDs may develop ESKD over a longer follow-up period due to the emergence of urinary protein and hypertension. Consequently, follow-up observation is essential to monitor their renal health.
