Concerns about the long-term safety of live kidney donors are justified

Long-term risk of all-cause mortality in live kidney donors: a matched cohort study

Background

Long-term outcomes of live kidney donors remain controversial, although this information is crucial for selecting potential donors. Thus, this study compared the long-term risk of all-cause mortality between live kidney donors and healthy control.

Methods

We performed a retrospective cohort study including donors from seven tertiary hospitals in South Korea. Persons who underwent voluntary health screening were included as controls. We created a matched control group considering age, sex, era, body mass index, baseline hypertension, diabetes, estimated glomerular filtration rate, and dipstick albuminuria. The study outcome was progression to end-stage kidney disease (ESKD), and all-cause mortality as identified in the linked claims database.

Results

We screened 1,878 kidney donors and 78,115 health screening examinees from 2003 to 2016. After matching, 1,701 persons remained in each group. The median age of the matched study subjects was 44 years, and 46.6% were male. Among the study subjects, 2.7% and 16.6% had underlying diabetes and hypertension, respectively. There were no ESKD events in the matched donor and control groups. There were 24 (1.4%) and 12 mortality cases (0.7%) in the matched donor and control groups, respectively. In the age-sex adjusted model, the risk for all-cause mortality was significantly higher in the donor group than in the control group. However, the significance was not retained after socioeconomic status was included as a covariate (adjusted hazard ratio, 1.82; 95% confidence interval, 0.87-3.80).

Conclusion

All-cause mortality was similar in live kidney donors and matched non-donor healthy controls with similar health status and socioeconomic status in the Korean population.

[Safety of the Living Kidney Donor - The German National Register - Development and Structure of a National Register in the Health Service Research]

The German living donor register Safety of the Living Kidney Donor - The German National Register (SOLKID-GNR) collects data of the medical and psychosocial outcome of living kidney donors. For the first time in Germany, a prospective data collection allows a scientifically based long-term analysis of how a living kidney donation influences the psychological and physical health of living kidney donors. This will contribute directly to improve the information and care of living kidney donors.

Supplementing living kidney transplantees' medical records with donor- and recipient-narratives

Norway provides total social welfare coverage for organ transplantations, including free immunosuppressive medication and prepaid life-long follow up for both recipients and donors. Despite these benefits the proportion of living kidney donors (LKD) has in recent years declined from around 40% (2011) of all kidney transplantations to 24% (2016). This study suggests harnessing patient- and donor-narratives as a tool for addressing the current fall in donation rates. The hospital records of 18 recipient/donor dyads were compared with patient and donor accounts elicited in semi-structured interviews. Narratives afford a pertinent supplement to the primarily biomedical and technical information stored in medical records. Even in condensed form, the messages embedded in narratives contribute to a 'thicker' understanding of the complexity of living kidney donation (LKD)-decisions. Narratives represent a source of education for referring-nephrologists wishing to deepen their evaluation skills and avoid making decisions based on insufficient insight into patients' and potential donors' values and life-situation. Recipients' and donors' unedited accounts of their motivations, worries, doubts and expectations afford a revealing and edifying supplement to the primarily biomedical and technical information stored in medical records. In narratives, the predicaments and dilemmas surrounding LKD become visible and debatable and can serve as support for future donors, recipients and the nephrologists responsible for evaluation-conclusions. Generating narratives raises a number of practical, epistemic and normative challenges.

Adaptive Personality Traits and Psychosocial Correlates among Living Kidney Donors

Since living kidney donors have repeatedly been shown to be mentally more healthy compared to the general population, they might also exhibit more adaptive personality characteristics. We investigated the personality traits of 315 living kidney donors (202 female and 113 male donors) on average 7.1 years after donation using the NEO-Five Factor Inventory, a frequently used personality inventory measuring the "big five" dimensions of personality (neuroticism, extraversion, openness, agreeableness, and conscientiousness). In addition, levels of depression, anxiety, and fatigue were assessed with the Patient Health Questionnaire-Depression Scale, GAD-7, and Multidimensional Fatigue Inventory. Kidney donors showed more adaptive personality traits with higher agreeableness and lower neuroticism scores compared to the German general population. This was even more pronounced in living kidney donors with a high motivation to donate again (non-regreters). Scores for depression, anxiety, and fatigue did not differ from general population values and were significantly correlated with most personality dimensions. The more adaptive personality characteristics of living kidney donors might either be a selection effect or the consequence of the experience of donation and improved health of the close relative. Regardless of the causal relationship, adaptive personality traits might positively influence both physical and psychosocial well-being of the donor. Longitudinal studies should investigate if living donation might lead to persistent adaptive changes in personality traits.