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Cardiovascular disease risk among children with focal segmental glomerulosclerosis: a report from the chronic kidney disease in children study.

ABSTRACT: BACKGROUND:The aims were to compare the cardiovascular disease (CVD) risk among children with chronic kidney disease (CKD) secondary to focal segmental glomerulosclerosis (FSGS) with the CVD risk of children with CKD due to other diagnoses. METHODS:Casual blood pressure (BP), ambulatory blood pressure monitoring (APBM), echocardiogram, lipids, carotid intima medial thickness (cIMT), and uric acid obtained from participants in the Chronic Kidney Disease in Children (CKiD) cohort were analyzed longitudinally. Seventy-nine children with FSGS (FSGS-CKD) were compared to 196 children with non-FSGS glomerular disease (GDO-CKD) and 616 children with non-glomerular disease (NG-CKD). RESULTS:At baseline, FSGS-CKD (median 14 years) had ambulatory hypertension (24.6%), masked hypertension (46.2%), left ventricular hypertrophy (LVH) (26.3%), and dyslipidemia (60.0%). In adjusted models, FSGS-CKD had higher systolic BP z-score (0.52 vs 0.11 and 0.23, p =?0.002 and 0.02), triglycerides (133 vs 109 and 102 mg/dl, p =?0.007 and

SUBMITTER: Sethna CB

PROVIDER: S-EPMC6594397 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Cardiovascular disease risk among children with focal segmental glomerulosclerosis: a report from the chronic kidney disease in children study.

Sethna Christine B CB Ng Derek K DK Jiang Shuai S Saland Jeff J Warady Bradley A BA Furth Susan S Meyers Kevin E KE

Pediatric nephrology (Berlin, Germany) 20190322 8

<h4>Background</h4>The aims were to compare the cardiovascular disease (CVD) risk among children with chronic kidney disease (CKD) secondary to focal segmental glomerulosclerosis (FSGS) with the CVD risk of children with CKD due to other diagnoses.<h4>Methods</h4>Casual blood pressure (BP), ambulatory blood pressure monitoring (APBM), echocardiogram, lipids, carotid intima medial thickness (cIMT), and uric acid obtained from participants in the Chronic Kidney Disease in Children (CKiD) cohort we ...[more]

PMID: 30903375

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Project description:Focal segmental glomerulosclerosis (FSGS) is a leading cause of kidney disease worldwide. The presumed etiology of primary FSGS is a plasma factor with responsiveness to immunosuppressive therapy and a risk of recurrence after kidney transplant-important disease characteristics. In contrast, adaptive FSGS is associated with excessive nephron workload due to increased body size, reduced nephron capacity, or single glomerular hyperfiltration associated with certain diseases. Additional etiologies are now recognized as drivers of FSGS: high-penetrance genetic FSGS due to mutations in one of nearly 40 genes, virus-associated FSGS, and medication-associated FSGS. Emerging data support the identification of a sixth category: APOL1 risk allele-associated FSGS in individuals with sub-Saharan ancestry. The classification of a particular patient with FSGS relies on integration of findings from clinical history, laboratory testing, kidney biopsy, and in some patients, genetic testing. The kidney biopsy can be helpful, with clues provided by features on light microscopy (e.g, glomerular size, histologic variant of FSGS, microcystic tubular changes, and tubular hypertrophy), immunofluorescence (e.g, to rule out other primary glomerulopathies), and electron microscopy (e.g., extent of podocyte foot process effacement, podocyte microvillous transformation, and tubuloreticular inclusions). A complete assessment of renal histology is important for establishing the parenchymal setting of segmental glomerulosclerosis, distinguishing FSGS associated with one of many other glomerular diseases from the clinical-pathologic syndrome of FSGS. Genetic testing is beneficial in particular clinical settings. Identifying the etiology of FSGS guides selection of therapy and provides prognostic insight. Much progress has been made in our understanding of FSGS, but important outstanding issues remain, including the identity of the plasma factor believed to be responsible for primary FSGS, the value of routine implementation of genetic testing, and the identification of more effective and less toxic therapeutic interventions for FSGS.

Project description:Rationale & objectiveRemission of proteinuria has been shown to be associated with lower rates of kidney disease progression among people with focal segmental glomerulosclerosis (FSGS). The goal of this study was to evaluate whether reductions in proteinuria after treatment are associated with greater kidney survival.Study designCohort analysis of clinical trial participants.Setting & participantsPatients with steroid-resistant FSGS enrolled in a randomized treatment trial that compared cyclosporine with mycophenolate mofetil plus dexamethasone.PredictorsReduction in proteinuria measured during 26 weeks after initiating treatment.OutcomesRepeated assessments of estimated glomerular filtration rate (eGFR) and time to a composite outcome of kidney failure or death assessed between 26 weeks and 54 months after randomization.Analytical approachMultivariable linear mixed-effects models with participant-specific slope and intercept to estimate the association of change in proteinuria over 26 weeks while receiving treatment with the subsequent slope of change in eGFR. Multivariable time-varying Cox proportional hazards models were used to estimate the association of changes in proteinuria with time to the composite outcome.Results138 of 192 trial participants were included. Changes in proteinuria over 26 weeks were significantly related to eGFR slope. A 1-unit reduction in log-transformed urinary protein-creatinine ratio was associated with a 3.90mL/min/1.73m2 per year increase in eGFR (95% CI, 2.01-5.79). This difference remained significant after adjusting for complete remission. There was an analogous relationship between time-varying proteinuria and time to the composite outcome: the HR per 1-unit reduction in log-transformed urinary protein-creatinine ratio was 0.23 (95% CI, 0.12-0.44).LimitationsLimited to individuals with steroid-resistant FSGS followed up for a maximum of 5 years.ConclusionsThese findings provide evidence for the benefit of urinary protein reduction in FSGS. Reductions in proteinuria warrant further evaluation as a potential surrogate for preservation of kidney function that may inform the design of future clinical trials.

Project description:AimsTo systematically review the incidence and risk factors for recurrent FSGS after kidney transplantation.MethodsWe searched PubMed, Embase, Medline, Web of Science, the Cochrane Library, CNKI, CBMdisc, Wanfang, and Weipu for case-control studies related to recurrent FSGS from the establishment until October 2022. The protocol was registered on PROSPERO (CRD42022315448). Data were analyzed using Stata 12.0, with odds ratios (counting data) and standardized mean difference (continuous data) being considered as effect sizes. If the I2 value was greater than 50%, the random-effects model was used; otherwise, a fixed-effects model was used. A meta-analysis on the incidence and risk factors for recurrent FSGS after kidney transplantation was performed.ResultsA total of 22 studies with 966 patients and 12 factors were included in the meta-analysis. There were 358 patients with recurrent FSGS and 608 patients without FSGS after kidney transplantation. The results showed that the recurrence rate of FSGS after kidney transplantation was 38% (95% CI: 31%-44%). Age at transplantation (SMD = -0.47, 95% CI -0.73 to -0.20, p = .001), age at onset (SMD = -0.31, 95% CI -0.54 to -0.08, p = .008), time from diagnosis to kidney failure (SMD = -0.24, 95% CI -0.43 to -0.04, p = .018), proteinuria before KT (SMD = 2.04, 95% CI 0.91 - 3.17, p < .001), related donor (OR 1.99, 95% CI 1.20 - 3.30, p = .007) and nephrectomy of native kidneys (OR 6.53, 95% CI 2.68 - 15.92, p < .001) were associated with recurrent FSGS, whereas HLA mismatches, duration of dialysis before KT, sex, living donor, tacrolimus use and previous transplantation were not associated with recurrent FSGS after kidney transplantation.ConclusionsThe recurrence of FSGS after kidney transplantation remains high. Clinical decision-making should warrant further consideration of these factors, including age, original disease progression, proteinuria, related donor, and nephrectomy of native kidneys.

Dataset Information

Cardiovascular disease risk among children with focal segmental glomerulosclerosis: a report from the chronic kidney disease in children study.

Publications

Cardiovascular disease risk among children with focal segmental glomerulosclerosis: a report from the chronic kidney disease in children study.

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