Increase in interventricular septum thickness may be the first sign of cardiovascular change in kidney donors

Background Because of the inadequate number of deceased kidney donors, living kidney donation remains an important issue for kidney transplantation. Previous studies have shown that living donation does not differ life expectancy and progression to end-stage renal disease compared with the normal population. In this study, we investigated short-term cardiovascular changes after donor nephrectomy. Methods Thirty-four patients who underwent donor nephrectomy between January 2015 and July 2015 at Ege University Renal Transplantation Unit were included in the study. Arterial stiffness, multifrequency bioimpedance analysis, renal ARFI elastography, and echocardiography performed prior to the donor nephrectomy and 6 months after nephrectomy. Results A total of 34 kidney donors were enrolled in this study. Twenty donors were female (59%) and 14 donors were male (41%). The pathological evaluation of donor kidneys using implantation renal biopsy sample revealed mean Karpinski Renal Score of 1.5 and the mean glomerulosclerosis ratio was 5% for all donated kidneys. Arterial stiffness, systolic and diastolic blood pressure measures, body fluid composition, and left atrial size did not change significantly during the follow-up. However, interventricular septum thickness of donors increased by 1 mm during a 6-month period (9.6 mm vs 10.6 mm, P = .002). Conclusion We observed an increase in interventricular septum thickness in kidney donors during a 6-month follow-up. In order to evaluate the net effect of this change on donor morbidity, prospective studies investigating an increased number of donors with long-term follow-up should be needed.