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- Remaining kidney volume indexed to weight as a strong predictor of estimated glomerular filtration rate at 1 year and mid‐term renal function after living‐donor nephrectomy ‐ a retrospective observational studyPublication . Nunes-Carneiro, Diogo; Madanelo, Mariana; Silva, Filipa; Pestana, Nicole; Ribeiro, Catarina; Gil‐Sousa, Diogo; Martins, La Salete; Almeida, Manuela; Dias, Leonidio; J, Malheiro; Cavadas, Vítor; Castro‐Henriques, Antonio; Fraga, Avelino; Silva-Ramos, MiguelThe donors' estimated glomerular filtration rate (eGFR) after living nephrectomy has been a concern, particularly in donors with smaller kindeys. Therefore, we developed this retrospective observational study in 195 donors to determine the ability remaining kidney volume indexed to weight (RKV/W) to predict eGFR at 1 year through multivariate linear regression and to explore this relationship between annual eGFR change from 1 to 4 years postdonation evaluated by a linear mixed model. Comparing RKV/W tertiles (T1, T2, T3), RKV/W was a good predictor of 1-year eGFR which was significantly better in T3 donors. Gender, predonation eGFR, and RKV/W were independent predictors of eGFR at 1-year. In a subgroup with predonation eGFR < 90mL/min/1.73 m2 , a significant prediction of eGFR < 60mL/min/1.73 m2 was detected in males with RKV/W ≤ 2.51cm3 /kg. Annual eGFR (ml/min/year) change from 1 to 4 years was + 0.77. RKV/W divided by tertiles (T1-T3) was the only significant predictor: T2 and T3 donors had an annual eGFR improvement opposing to T1. RKV/W was a good predictor of eGFR at 1 year, independently from predonation eGFR. A higher RKV/W was associated with improved eGFR at 1 year. A decline in eGFR on the four years after surgery was only noticeable in donors with RKV/W ≤ 2.13cm3 /kg.