Publications by authors named "Frimat L"

Background: We sought to comprehensively describe drug-related components associated with acute kidney injury (AKI) in patients with chronic kidney disease (CKD), describing the incidence of drug-related AKI, the proportion of preventable AKI, identified the various drugs potentially associated with it, explored the risk factors, and assessed the 1-year incidences of the recurrence of drug-related AKI, kidney failure, and death.

Methods: CKD-REIN is a French national prospective cohort of 3033 nephrology outpatients with a confirmed diagnosis of CKD (eGFR <60 ml/min/1.73 m²).

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Background: Hyperuricemia is a hallmark of gout and a suspected risk factor for the progression of chronic kidney disease (CKD). However, the impact of urate-lowering therapy on CKD progression is subject to debate. The objective of the present study was to describe the prevalence of inappropriate urate-lowering therapy prescriptions and evaluate the association between urate-lowering therapy prescription and the progression of kidney disease in patients with CKD.

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Background And Hypothesis: Cardiovascular diseases are a leading cause of morbidity and mortality in patients with chronic kidney disease (CKD). Acute kidney injury (AKI) has been increasingly recognized as a potential exacerbating factor for cardiovascular events in these patients. The CKD-REIN study aims to explore the relationship between AKI and the risk of major adverse cardiovascular events (MACE) in a cohort of CKD patients.

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  • Blood pressure (BP) control is crucial for preventing complications in chronic kidney disease (CKD), yet many patients struggle to reach target levels; this study evaluates how antihypertensive prescriptions change over time in CKD patients.
  • Conducted with 2,755 hypertensive CKD patients in France, the study tracked factors influencing prescription changes, such as patient demographics and healthcare provider interactions.
  • Results showed that over five years, there was a high rate of changes in medication; poor adherence to medications increased the likelihood of needing additional drugs, while having a lower education level led to more frequent withdrawals of antihypertensive medications.
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Introduction: Iron deficiency (ID) is common in patients with chronic kidney disease (CKD) but remains under-diagnosed and its prognosis poorly documented in the absence of anemia. The aim of the study was to assess the relationship between ID and the risk of major adverse outcomes in patients with CKD.

Methods: Using data from the French Chronic Kidney Disease - Renal Epidemiology and Information Network (CKD-REIN) cohort which included and followed over five years, 3,033 patients with CKD stages 2 to 5 CKD, we estimated the prevalence of ID, defined by a ferritin level < 100 μg/L and/or a transferrin saturation < 20%, and associated hazard ratios (HR) of kidney failure with replacement therapy, kidney failure defined by an eGFR < 15 mL/min per 1.

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Background: Islet transplantation has been associated with better metabolic control and quality of life than insulin treatment alone, but direct evidence of its effect on hard clinical endpoints is scarce. We aimed to assess the effect of islet transplantation on patient-graft survival in kidney transplant recipients with type 1 diabetes.

Methods: In this retrospective cohort study, we enrolled all patients with type 1 diabetes who received a kidney graft in France during the study period, identified from the CRISTAL nationwide registry.

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  • * In a cohort of 2505 CKD patients, researchers found that while urea levels did not significantly predict new antidepressant prescriptions, higher urea was linked to worsening depressive symptoms over a 5-year follow-up.
  • * The findings suggest a connection between serum urea levels and depression symptoms, highlighting the need for further research to clarify the mechanisms involved.
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  • Adjusting drug doses based on kidney function through eGFR takes into account body surface area, but it can be tricky for patients with high or low BMI levels.
  • The study looked at CKD patients with diabetes to see how changing the way kidney function is estimated affects the rate of improper prescriptions for oral antidiabetic drugs.
  • Researchers found that deindexing kidney function estimates generally led to higher eGFR readings, especially in patients with higher BMI, and that this also changed the frequency of inappropriate drug prescriptions significantly.
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HOW TO BENEFIT FORM COORDINATED CARE? Chronic kidney disease (CKD) is a major goal of public health. At each stage of CKD, from screening to renal replacement therapy, coordinated care at geographic level or population-based may contribute to enhance effectiveness and efficiency. Kidney transplantation, home-dialysis and conservative treatment must be prioritized.

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  • The study investigates how chronic kidney disease (CKD) affects sex differences in cardiovascular disease (CVD) risk, specifically distinguishing between atheromatous CVD (ACVD) and nonatheromatous CVD (NACVD).
  • Utilizing data from a cohort of nearly 3,000 patients with moderate to severe CKD across France, the results indicate that women have a significantly lower rate of ACVD compared to men, but no significant difference in NACVD rates was found between the sexes.
  • The findings highlight that as kidney function declines (measured by eGFR), the sex differences in ACVD risk diminish, whereas NACVD risk remains consistent across both sexes, suggesting gender impacts risk differently based on CVD
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Aim: This study evaluated the bias and accuracy of the CKD-EPI/CKiD and EKFC equations compared with the reference exogenous tracer-based assessment of glomerular filtration rate (GFR) in adult and pediatric patients according to their renal transplant status.

Methods: We assessed the bias and P accuracy of the CKD-EPI/CKiD and EKFC equations compared with iohexol-based GFR measurement.

Results: In the overall population (n = 59), the median age was 29 years (IQR, 16.

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Aim: The risk of cardiorenal events remains high among patients with diabetes and chronic kidney disease (CKD), despite the prescription of recommended treatments. We aimed to determine whether the attainment of a combination of nephroprotection targets at baseline (glycated haemoglobin <7.0%, urinary albumin-creatinine ratio <300 mg/g, blood pressure <130/80 mmHg, renin-angiotensin system inhibition) was associated with better cardiorenal outcomes and lower mortality.

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Background: Approximately 15% of kidney transplant (KT) recipients develop de novo heart failure after KT. There are scarce data reporting the long-term changes in cardiac structure and function among KT recipients. Despite the improvement in renal function, transplant-related complications as well as immunosuppressive therapy could have an impact on cardiac remodelling during follow-up.

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Background: If any benefit is to be derived from the use of the health-related quality of life (HRQoL) questionnaires in chronic kidney disease (CKD) patients, they should be validated and culturally adapted to the target population. We aimed to critically appraise the psychometric properties of HRQoL questionnaires used in African populations with CKD.

Methods: Web of Science, Embase, PubMed and PsycINFO databases were searched.

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  • Kynurenine, a toxin that increases in patients with chronic kidney disease (CKD), has been linked to poor cardiovascular health outcomes and mortality.
  • In a study of over 2400 CKD patients, higher levels of serum-free kynurenine were found to increase the risk of cardiovascular events and mortality, independent of other factors.
  • The results suggest that serum-free kynurenine may play a significant role in cardiovascular risks among CKD patients, although it was not linked to overall mortality after adjusting for other compounds.
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Rationale & Objective: Adverse drug reactions (ADRs) are common in patients with chronic kidney disease (CKD). The impact of kidney function decline on serious ADR risk has been poorly investigated. We comprehensively describe ADRs and assess the relationship between estimated glomerular filtration rate (eGFR) and serious ADR risk.

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Background: Chronic kidney disease (CKD) is associated with an elevated risk of neurocognitive disorders (NCDs). It remains unclear whether CKD-related NCDs have a specific cognitive pattern or are earlier-onset phenotypes of the main NCDs (vascular NCDs and Alzheimer's disease).

Methods: We used the Mini Mental State Examination score (MMSE) to assess cognitive patterns in 3003 CKD patients (stage 3-4) followed up over 5 years in the Chronic Kidney Disease-Renal Epidemiology and Information Network (CKD-REIN) cohort.

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Background: The trajectories of haemoglobin in patients with chronic kidney disease (CKD) have been poorly described. In such patients, we aimed to identify typical haemoglobin trajectory profiles and estimate their risks of major adverse cardiovascular events (MACE).

Methods: We used 5-year longitudinal data from the CKD-REIN cohort patients with moderate to severe CKD enrolled from 40 nationally representative nephrology clinics in France.

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  • The study investigates the impact of continuing or discontinuing immunosuppressive therapy (IT) after kidney allograft failure (KAF) on HLA-sensitization and patient mortality.
  • It analyzes data from the French national registry, including 121 patients who returned to dialysis post-KAF, comparing those who continued IT with those who stopped it.
  • Results indicate that continuing IT tends to lead to lower HLA-sensitization rates without increasing mortality risk among patients.
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Launched in 2013 supported by the Program “Cohorts – Investments for the Future”, the CKD-REIN (Chronic Kidney Disease – Renal Epidemiology and Information Network) study is a prospective cohort that included and followed for 5 years more than 3000 patients with moderate or advanced chronic kidney disease (CKD), from 40 nationally representative nephrology clinics. A large amount of data was collected on CKD and its treatments, patient social characteristics and reported outcomes, and nephrology practices and services. A total of 170,000 blood and urine samples were collected and stored in a central biobank.

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The demographic evolution of patients with advanced chronic kidney disease (CKD) has led to the advent of an alternative treatment option to kidney replacement therapy in the past couple of decades. The KDIGO controversies on Kidney Supportive Care called this approach "comprehensive conservative care" (CCC) and defined it as planned holistic patient-centered care for patients with CKD stage 5 that does not include dialysis. Although the benefit of this treatment option is now well-recognized, especially for the elderly, and comorbid and frail patients, its development remains limited in practice.

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