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Long-term prognosis after kidney donation: a propensity score matched comparison of living donors and non-donors from two population cohorts.

ABSTRACT: BACKGROUND:Live donor nephrectomy is a safe procedure. However, long-term donor prognosis is debated, necessitating high-quality studies. METHODS:A follow-up study of 761 living kidney donors was conducted, who visited the outpatient clinic and were propensity score matched and compared to 1522 non-donors from population-based cohort studies. Primary outcome was kidney function. Secondary outcomes were BMI (kg/m2), incidences of hypertension, diabetes, cardiovascular events, cardiovascular and overall mortality, and quality of life. RESULTS:Median follow-up after donation was 8.0 years. Donors had an increase in serum creatinine of 26 μmol/l (95% CI 24-28), a decrease in eGFR of 27 ml/min/1.73 m2 (95% CI - 29 to - 26), and an eGFR decline of 32% (95% CI 30-33) as compared to non-donors. There was no difference in outcomes between the groups for ESRD, microalbuminuria, BMI, incidence of diabetes or cardiovascular events, and mortality. A lower risk of new-onset hypertension (OR 0.45, 95% CI 0.33-0.62) was found among donors. The EQ-5D health-related scores were higher among donors, whereas the SF-12 physical and mental component scores were lower. CONCLUSION:Loss of kidney mass after live donation does not translate into negative long-term outcomes in terms of morbidity and mortality compared to non-donors. TRIAL REGISTRATION:Dutch Trial Register NTR3795.

SUBMITTER: Janki S

PROVIDER: S-EPMC7387377 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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Long-term prognosis after kidney donation: a propensity score matched comparison of living donors and non-donors from two population cohorts.

Janki Shiromani S Dehghan Abbas A van de Wetering Jacqueline J Steyerberg Ewout W EW Klop Karel W J KWJ Kimenai Hendrikus J A N HJAN Rizopoulos Dimitris D Hoorn Ewout J EJ Stracke Sylvia S Weimar Willem W Völzke Henry H Hofman Albert A Ijzermans Jan N M JNM

European journal of epidemiology 20200521 7

<h4>Background</h4>Live donor nephrectomy is a safe procedure. However, long-term donor prognosis is debated, necessitating high-quality studies.<h4>Methods</h4>A follow-up study of 761 living kidney donors was conducted, who visited the outpatient clinic and were propensity score matched and compared to 1522 non-donors from population-based cohort studies. Primary outcome was kidney function. Secondary outcomes were BMI (kg/m<sup>2</sup>), incidences of hypertension, diabetes, cardiovascular ev ...[more]

PMID: 32440788

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Project description:ImportanceLiving kidney donors may have an increased risk of fractures due to reductions in kidney mass, lower concentrations of serum 1,25-dihydroxyvitamin D, and secondary increases in serum parathyroid hormone.ObjectiveTo compare the overall and site-specific risk of fractures among living kidney donors with strictly matched controls from the general population who would have been eligible to donate a kidney but did not do so.Design, setting, and participantsThis survey study was conducted between December 1, 2021, and July 31, 2023. A total of 5065 living kidney donors from 3 large transplant centers in Minnesota were invited to complete a survey about their bone health and history of fractures, and 16 156 population-based nondonor controls without a history of comorbidities that would have precluded kidney donation were identified from the Rochester Epidemiology Project and completed the same survey. A total of 2132 living kidney donors and 2014 nondonor controls responded to the survey. Statistical analyses were performed from May to August 2023.ExposureLiving kidney donation.Main outcomes and measuresThe rates of overall and site-specific fractures were compared between living kidney donors and controls using standardized incidence ratios (SIRs).ResultsAt the time of survey, the 2132 living kidney donors had a mean (SD) age of 67.1 (8.9) years and included 1245 women (58.4%), and the 2014 controls had a mean (SD) age of 68.6 (7.9) years and included 1140 women (56.6%). The mean (SD) time between donation or index date and survey date was 24.2 (10.4) years for donors and 27.6 (10.7) years for controls. The overall rate of fractures among living kidney donors was significantly lower than among controls (SIR, 0.89; 95% CI, 0.81-0.97). However, there were significantly more vertebral fractures among living kidney donors than among controls (SIR, 1.42; 95% CI, 1.05-1.83).Conclusions and relevanceThis survey study found a reduced rate of overall fractures but an excess of vertebral fractures among living kidney donors compared with controls after a mean follow-up of 25 years. Treatment of excess vertebral fractures with dietary supplements such as vitamin D3 may reduce the numbers of vertebral fractures and patient morbidity.

Project description:Purpose:To investigate whether juvenile patients with nasopharyngeal carcinoma (NPC) in China have better prognosis than their adult counterparts in the intensity-modulated radiation therapy (IMRT) era, after controlling for potential confounding variables. Methods:Data pertaining to 1139 patients with newly diagnosed NPC without metastasis, who were treated with IMRT at our hospital, were retrospectively analyzed. Of these, 60 patients were juvenile (age ?18 years) diagnosed between January 2003 and December 2018, while 1079 patients were adults (?65 years) diagnosed between January 2013 and December 2014. To minimize the influence of selection and confounding bias, 1:2 propensity score matching (PSM) was used. Overall survival (OS), disease-free survival (DFS), locoregional relapse-free survival (LRFS), and distant metastasis-free survival (DMFS) were estimated using the Kaplan-Meier method and between-group differences assessed using the Log rank test. The long-term toxicity of the juvenile patients was evaluated according to the criteria of the Radiation Therapy Oncology Group (RTOG) and the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Results:Five-year OS of juvenile and adult patients were 88.07% and 85.08%, respectively. Before PSM, OS, PFS, DMFS, or LRFS were comparable in the two groups (all P > 0.05). After PSM, OS, DFS, and LRFS in the juvenile group were markedly longer than that in adults (P = 0.005, P = 0.027, and P = 0.024, respectively). With respect to long-term toxicity, the most common adverse effects in juvenile patients were cervix fibrosis, ototoxicity, and xerostomia. However, except for two patients who developed grade 3 ototoxicity, all adverse effects were within grade 2. Conclusion:In the IMRT era, juvenile Chinese patients with NPC had better 5-year OS, DFS, and LRFS than their adult counterparts. The adverse events in the juvenile cohort were relatively mild; however, the risk of severe ototoxicity should not be neglected.

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Long-term prognosis after kidney donation: a propensity score matched comparison of living donors and non-donors from two population cohorts.

Publications

Long-term prognosis after kidney donation: a propensity score matched comparison of living donors and non-donors from two population cohorts.

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