Effect of CT Angiogram Findings On the Live Kidney Donor Pool Amongst Minorities.

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Potential live kidney donors undergo an abdominal CT angiogram (CTA) to assess the vascular anatomy and to detect other medical abnormalities that might affect the surgical plan or render the potential donor ineligible. Little data regarding CTA findings in minority potential donors exists. A single-center retrospective cohort study of potential kidney donors between 2009 and 2012 was performed. CTA reports were analyzed by two board certified radiologists. Of 223 potential donors 23% were Black, 36% Hispanic, and 41% Other (35% White; 6% Asian, Indian, or Unknown) race. There were no signifigant differences between the racial groups in terms of age or sex, CTA findings of renal artery multiplicity, vein abnormalities, or presence of renal stone. Kidney donation occurred with 35%, 41% and 46% of potential donors in each group, respectively (p=0.4020). Further imaging studies were required due to the presence of CTA findings in 21%, 20%, and 18% of patients in each group (p=0.8555). Twenty-two (10%) patients were excluded as a potential donor predominantly due to CTA findings. A significantly higher proportion of Blacks (19%) were not allowed to donate due to CTA abnormalities compared to Hispanic (4%, p=0.0153) or other race (10%; p=0.0143) donors.[table 1]Racial disparity in attainment of living donor kidney transplantation has been identified at every step of the kidney transplant process. We show that Black race is associated with CTA findings that render a potential donor ineligible. To the best of our knowledge there is no systematic data available describing CTA findings effect on potential kidney donor pool amongst minorities.Table 1: Donor Characteristics and Outcomes by Race