Donor Renal Artery Diameter (RAD) is Associated with Graft Function in Kidney Transplantation

Introduction:The aim of this study is to investigate the relationship between living donor renal artery diameter(RAD), donor renal parenchymal volume(RPV) and post-transplant recipient graft function.Methods: We retrospectively collected data of patients with living kidney donor-recipients.63 living donors and recipients who met the criteria for kidney donor were included in the study.Abdomen CT protocol was performed for all living renal donors.Data of age, gender, BMI, number of rhe renal artery, renal parenchymal volume (RPV),renal cortical volume(RCV), renal artery diameter (RAD) of the donors were recorded.Results: A statistically significant positive correlation was found between RAD and RPV (r = 0.493).It was found that the cutoff value of RAD for eGFR >60 (ml/min/1.73m2) was 6,65 (sensitivity 68%, specificity 62%) with ROC (Receiver Operating Characteristic) curve analysis according to the Youden index.In the multivariate logistic regression analysis, RAD above 6,65 mm (OR=5,533, 95% GA = 1,193 -25,655, p =,029) was found to be associated with 6 months eGFR.Discussion and Conclusion: Renal artery diameter, which can be measured more easily than renal volume in CT routinely used before transplantation, may apply for the prediction of graft function.Keywords: kidney donor,