APOL1 Genotyping in Potential African American Living Kidney Donors: Utility and Cost-Effectiveness.

BACKGROUND:Apolipoprotein L1 gene (APOL1) variants predispose to nondiabetic kidney disease in African American (AA) patients. Here, we share our experience with APOL1 genotyping of AA potential living kidney donors and offer a perspective on its utility and cost-effectiveness in this population. METHODS:Since May 2017, all potential AA living kidney donors at our center underwent APOL1 genotyping early in the donor evaluation process. APOL1 high-risk individuals were declined, whereas those with low-risk genotype continued with further evaluation and testing. RESULTS:One out of 26 potential donors had high-risk genotype and was therefore declined. The rest were eligible to continue the donor evaluation process and 7 of them underwent donor nephrectomy without any complications. A crude cost analysis utilizing our sample suggested probable cost-effectiveness of APOL1 genotyping as it can prevent earlier onset of chronic kidney disease in AA donors. CONCLUSION:We propose a role for systematically incorporating APOL1 genotyping in the evaluation and informed consent process of potential AA donors while acknowledging the controversial considerations associated with it.

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