Association of novel biomarkers with major clinical outcomes in a cohort of patients with atherosclerotic renovascular disease

2019 ◽  
Vol 56 (4) ◽  
pp. 488-501
Author(s):  
Diana Vassallo ◽  
Helen Alderson ◽  
Nicolas Vuilleumier ◽  
James Ritchie ◽  
Darren Green ◽  
...  
Keyword(s):  
Risk Factors ◽  
Kidney Disease ◽  
Patient Selection ◽  
End Stage Kidney Disease ◽  
Renovascular Disease ◽  
Novel Biomarkers ◽  
Selection For ◽  
Traditional Risk Factors ◽  
End Stage ◽  
Atherosclerotic Renovascular Disease

Introduction In this study, we investigate whether the addition of biomarkers to a model based on traditional risk factors improves risk prediction and patient selection for revascularization in atherosclerotic renovascular disease. Methods Patients in the Salford Renovascular Study who had the following biomarkers analysed on a baseline sample were included in this study: FGF-23, Cystatin C, kidney injury molecule-1, myeloperoxidase, neutrophil gelatinase-associated lipocalin, N-terminal prohormone of brain natriuretic peptide (NT-proBNP), high-sensitivity Troponin T and anti-apolipoprotein A1 IgG. Cox proportional hazards models and net reclassification index were used to study the effects of either individual or a panel of biomarkers on predicting death, end-stage kidney disease and cardiovascular events. Results A total of 112 patients were followed up for a median 59.9 months (IQR 33.6–86.9). In total, 75 patients died, 21 reached end-stage kidney disease and 36 suffered a cardiovascular event. Only NT-proBNP maintained a statistically significant association with all end-points (death: HR 1.62 [95% CI 1.26–2.10], P < 0.0005; end-stage kidney disease: HR 1.51 [95% 1.19–1.91], P = 0.001; cardiovascular event: HR 1.56 [95% CI 1.23–1.97], P < 0.0005). Risk reclassification improved with addition of all biomarkers as a panel to the base model. Only patients with NT-proBNP concentrations above 300 ng/L gained benefit from revascularization with regard to all adverse end-points compared with medically managed patients. Conclusions NT-proBNP is independently associated with increased risk for all adverse events in atherosclerotic renovascular disease. Novel biomarkers may have an incremental risk predictive value when used in combination with traditional risk factors, and NT-proBNP may have value in patient selection for revascularization. Given the small size of this study, larger multicentre studies are required to validate these findings.

scholarly journals Cardiovascular disease in chronic kidney disease – a review of risk factors

2020 ◽  
Vol 23 (1) ◽  
Author(s):  
Muzamil Olamide Hassan ◽  
Stephen Olawale Oguntola ◽  
Raquel Duarte ◽  
Saraladevi Naicker
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Evidence Based ◽  
End Stage Kidney Disease ◽  
Increased Risk ◽  
Risk Of Progression ◽  
Novel Biomarkers ◽  
End Stage

Patients with chronic kidney disease (CKD) are at increased risk of cardiovascular disease (CVD), such that the risk of cardiovascular mortality is greater than the risk of progression to end-stage kidney disease. Despite the increased prevalence of traditional and non-traditional cardiovascular risk factors, patients with kidney disease have been mostly under-represented in previous cardiovascular outcome studies, thereby resulting in a paucity of data on the evidence-based management of CVD in CKD. In this review, we explore the evidence on the burden of CVD and its risk factors in patients with CKD, highlight various inflammatory biomarkers for predicting CVD and provide an overview on novel biomarkers for CVD.

Age dependence of brachial cuff-based ambulatory PWV in end-stage kidney disease patients undergoing long-term peritoneal dialysis

2021 ◽  
pp. 089686082199692
Author(s):  
Vasilios Vaios ◽  
Panagiotis I Georgianos ◽  
Georgia Vareta ◽  
Dimitrios Divanis ◽  
Evangelia Dounousi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Blood Pressure ◽  
Heart Rate ◽  
Peritoneal Dialysis ◽  
Kidney Disease ◽  
Pulse Wave ◽  
Age Dependence ◽  
End Stage Kidney Disease ◽  
End Stage

Background: The newly introduced device Mobil-O-Graph (IEM, Stolberg, Germany) combines brachial cuff oscillometry and pulse wave analysis, enabling the determination of pulse wave velocity (PWV) via complex mathematic algorithms during 24-h ambulatory blood pressure monitoring (ABPM). However, the determinants of oscillometric PWV in the end-stage kidney disease (ESKD) population remain poorly understood. Methods: In this study, 81 ESKD patients undergoing long-term peritoneal dialysis underwent 24-h ABPM with the Mobil-O-Graph device. The association of 24-h oscillometric PWV with several demographic, clinical and haemodynamic parameters was explored using linear regression analysis. Results: In univariate analysis, among 21 risk factors, 24-h PWV exhibited a positive relationship with age, body mass index, overhydration assessed via bioimpedance spectroscopy, diabetic status, history of dyslipidaemia and coronary heart disease, and it had a negative relationship with female sex and 24-h heart rate. In stepwise multivariate analysis, age ( β: 0.883), 24-h systolic blood pressure (BP) ( β: 0.217) and 24-h heart rate ( β: −0.083) were the only three factors that remained as independent determinants of 24-h PWV (adjusted R 2 = 0.929). These associations were not modified when all 21 risk factors were analysed conjointly or when the model included only variables shown to be significant in univariate comparisons. Conclusion: The present study shows that age together with simultaneously assessed oscillometric BP and heart rate are the major determinants of Mobil-O-Graph-derived PWV, explaining >90% of the total variation of this marker. This age dependence of oscillometric PWV limits the validity of this marker to detect the premature vascular ageing, a unique characteristic of vascular remodelling in ESKD.

scholarly journals MP044CAN GENETIC RISK SCORES IMPROVE THE PREDICTON POWER FOR MORTALITY OF STANDARD RISK FACTORS IN THE END STAGE KIDNEY DISEASE POPULATION? AN EXPLORATORY STUDY

2016 ◽  
Vol 31 (suppl_1) ◽  
pp. i357-i357
Author(s):  
Belinda Spoto ◽  
Alessandra Testa ◽  
Graziella D'Arrigo ◽  
Rosa M Parlongo ◽  
Maria C. Sanguedolce ◽  
...  
Keyword(s):  
Risk Factors ◽  
Kidney Disease ◽  
Genetic Risk ◽  
Exploratory Study ◽  
Risk Scores ◽  
End Stage Kidney Disease ◽  
Genetic Risk Scores ◽  
End Stage ◽  
Standard Risk

scholarly journals Causes and risk factors for acute dialysis initiation among patients with end-stage kidney disease—a large retrospective observational cohort study

2018 ◽  
Vol 12 (4) ◽  
pp. 550-558 ◽  
Author(s):  
Nish Arulkumaran ◽  
Arunraj Navaratnarajah ◽  
Camilla Pillay ◽  
Wendy Brown ◽  
Neill Duncan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Kidney Disease ◽  
Primary Objective ◽  
Dialysis Initiation ◽  
End Stage Kidney Disease ◽  
Acute Dialysis ◽  
Independent Risk Factors ◽  
The Difference ◽  
End Stage

AbstractBackgroundPatients who require acute initiation of dialysis have higher mortality rates when compared with patients with planned starts. Our primary objective was to explore the reasons and risk factors for acute initiation of renal replacement therapy (RRT) among patients with end-stage kidney disease (ESKD). Our secondary objective was to determine the difference in glomerular filtration rate (GFR) change in the year preceding RRT between elective and acute dialysis starts.MethodsWe conducted a single-centre retrospective observational study. ESKD patients either started dialysis electively (planned starters) or acutely and were known to renal services for >90 (unplanned starters) or <90 days (urgent starters).ResultsIn all, 825 consecutive patients initiated dialysis between January 2013 and December 2015. Of these, 410 (49.7%) patients had a planned start. A total of 415 (50.3%) patients had an acute start on dialysis: 244 (58.8%) unplanned and 171 (41.2%) urgent. The reasons for acute dialysis initiation included acute illness (58%) and unexplained decline to ESKD (33%). Cardiovascular disease [n = 30 (22%)] and sepsis [n = 65 (48%)] accounted for the majority of acute systemic illness. Age and premorbid cardiovascular disease were independent risk factors for acute systemic illness among unplanned starts, whereas autoimmune disease accounted for the majority of urgent starts. The rate of decline in GFR was greater in the month preceding RRT among acute dialysis starters compared with planned starters (P < 0.001).ConclusionsCardiovascular disease and advancing age were independent risk factors for emergency dialysis initiation among patients known to renal services for >3 months. The rapid and often unpredictable loss of renal function in the context of acute systemic illness poses a challenge to averting emergency dialysis start.

scholarly journals Use of QT Prolonging Medications by Hemodialysis Patients and Individuals Without End‐Stage Kidney Disease

2020 ◽  
Vol 9 (13) ◽  
Author(s):  
Magdalene M. Assimon ◽  
Lily Wang ◽  
Patrick H. Pun ◽  
Wolfgang C. Winkelmayer ◽  
Jennifer E. Flythe
Keyword(s):  
Risk Factors ◽  
Kidney Disease ◽  
Cardiac Death ◽  
Medication Use ◽  
Torsades De Pointes ◽  
Hemodialysis Patients ◽  
Qt Prolongation ◽  
End Stage Kidney Disease ◽  
Drug Induced ◽  
End Stage

Background The rate of sudden cardiac death in the hemodialysis population exceeds that of the general population by >20‐fold. Hemodialysis patients may be particularly susceptible to sudden cardiac death provoked by drug‐induced QT prolongation because of their substantial cardiovascular disease burden, exposure to electrolyte shifts during dialysis, and extensive polypharmacy. However, population‐specific data regarding the frequency and patterns of QT prolonging medication use are limited. Methods and Results We conducted a descriptive drug utilization study using 3 administrative databases, the United States Renal Data System, MarketScan, and Medicare claims. We characterized the extent and patterns of QT prolonging medication use by adult hemodialysis patients and individuals without end‐stage kidney disease annually from 2012 to 2016. We also identified instances of high‐risk QT prolonging medication use among hemodialysis patients. In total, 338 515 hemodialysis patients and 40.7 million individuals without end‐stage kidney disease were studied. Annual utilization rates of QT prolonging medications with known torsades de pointes risk in hemodialysis patients were ~1.4 to ~2.5 times higher than utilization rates in individuals without end‐stage kidney disease. Hemodialysis patients with demographic and clinical risk factors for drug‐induced QT prolongation were exposed to medications with known torsades de pointes risk more often than patients without risk factors. Conclusions Hemodialysis patients use QT prolonging medications with known torsades de pointes risk more extensively than individuals without end‐stage kidney disease. Given the widespread use and instances of high‐risk prescribing, future studies evaluating the cardiac safety of these drugs in the hemodialysis population are needed.

scholarly journals Absolute risk and risk factors for stroke mortality in patients with end-stage kidney disease (ESKD): population-based cohort study using data linkage

BMJ Open ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. e026263 ◽  
Author(s):  
Nicole Louise De La Mata ◽  
Maria Alfaro-Ramirez ◽  
Patrick J Kelly ◽  
Philip Masson ◽  
Rustam Al-Shahi Salman ◽  
...  
Keyword(s):  
Risk Factors ◽  
New Zealand ◽  
Kidney Disease ◽  
Cerebrovascular Disease ◽  
Cumulative Incidence ◽  
Data Linkage ◽  
Polycystic Kidney ◽  
End Stage Kidney Disease ◽  
End Stage ◽  
Stroke Death

IntroductionPeople with end-stage kidney disease (ESKD) have up to 30-fold higher risk of stroke than the general population.ObjectiveTo determine risk factors associated with stroke death in the ESKD population.MethodsWe identified all patients with incident ESKD in Australia (1980–2013) and New Zealand (1988–2012) from the Australian and New Zealand Dialysis and Transplant Registry (ANZDATA) registry. We ascertained underlying cause of death from data linkage with national death registries and risk factors from ANZDATA. Using a competing risks multivariable regression model, we estimated cumulative incidence of stroke and non-stroke deaths, and risk factors for stroke deaths (adjusted sub-HR, SHR).ResultsWe included 60 823 people with ESKD. There were 941 stroke deaths and 33 377 non-stroke deaths during 381 874 person-years of follow-up. Overall, the cumulative incidence of stroke death was 0.9% and non-stroke death was 36.8% 5 years after starting ESKD treatment. The risk of stroke death was higher at older ages (SHR 1.92, 95% CI 1.45 to 2.55), in females (SHR 1.41, 95% CI 1.21 to 1.64), in people with cerebrovascular disease (SHR 2.39, 95% CI 1.99 to 2.87), with ESKD caused by hypertensive/renovascular disease (SHR 1.39, 95% CI 1.09 to 1.78) or polycystic kidney disease (SHR 1.38, 95% CI 1.00 to 1.90), with earlier year of ESKD treatment initiation (SHR 1.93, 95% CI 1.56 to 2.39) and receiving dialysis (transplant vs haemodialysis SHR 0.27, 95% CI 0.09 to 0.84).ConclusionPatients with ESKD with higher risk of stroke death are older, women, with cerebrovascular disease, with hypertensive/renovascular or polycystic kidney disease cause of ESKD, with earlier year of ESKD treatment and receiving dialysis. These groups may benefit from targeted stroke prevention interventions.

scholarly journals The burden of unrecognised chronic kidney disease in patients with type 2 diabetes at a county hospital clinic in Kenya: implications to care and need for screening.

2019 ◽  
Author(s):  
Frederick C. F. Otieno ◽  
Elijah N Ogola ◽  
Mercy W Kimando ◽  
Ken K Mutai
Keyword(s):  
Risk Factors ◽  
Type 2 Diabetes ◽  
Chronic Kidney Disease ◽  
High Risk ◽  
Kidney Disease ◽  
County Hospital ◽  
End Stage Kidney Disease ◽  
Long Duration ◽  
End Stage

Abstract Background: Chronic Kidney Disease (CKD) in patients with type 2 diabetes enhances the cardiovascular risk profiles and disease, and is a strong predictor of progression to end-stage kidney disease. Early diagnosis is encouraged for referral to specialist kidney care to initiate active management that would optimize outcomes including forestalling progression to end-stage kidney disease. This study was conducted in a regional referral public health facility in Central Kenya with a high prevalence of type 2 diabetes. It was aimed at finding out the burden of undiagnosed chronic kidney disease in their clinic of ambulatory patients with type 2 diabetes who dwell mainly in the rural area. Methods: A cross-sectional study was conducted at the out-patient of Nyeri County hospital. A total of 385 patients were enrolled over five months. Informed consent was obtained and clinical evaluation was done, a spot sample of urine obtained for albuminuria and venous blood drawn for HbA1c, Lipids and serum creatinine. Estimated GFR (eGFR) was calculated using the Cockroft-Gault equation. Chronic kidney disease (CKD) was classified on KDIGO scale. Albuminuria was reported as either positive or negative. Main outcomes measure: Estimated Glomerular filtration rate and albuminuria as markers of chronic kidney disease. Results: A total of 385 participants were included in the study, 252 (65.5%) were females. There were 39.0 % (95%CI 34.3-44.2) patients in CKD/KDIGO stages 3, 4 and 5 and 32.7% (95%CI, 27.8-37.4) had Albuminuria. The risk factors that were significantly associated with chronic kidney disease/KDIGO stages 3, 4 and 5 were: age >50years, long duration with diabetes >5years and hypertension. Employment and paradoxically, obesity reduced the odds of having CKD, probably as markers of better socio-economic status. Conclusion: Unrecognized CKD of KDIGO stages 3,4 and 5 occurred in over thirty percent of the study patients. The risk factors of hypertension, age above 50, long duration of diabetes should help identify those at high risk of developing CKD, for screening and linkage to care. They are at high risk of progression to end-stage kidney disease and cardiovascular events. The imperative of screening for chronic kidney disease is availing care in publicly-funded hospitals.

scholarly journals The burden of unrecognised chronic kidney disease in patients with type 2 diabetes at a county hospital clinic in Kenya: implications to care and need for screening

2020 ◽  
Author(s):  
Frederick C. F. Otieno ◽  
Elijah N Ogola ◽  
Mercy W Kimando ◽  
Ken K Mutai
Keyword(s):  
Risk Factors ◽  
Type 2 Diabetes ◽  
Chronic Kidney Disease ◽  
High Risk ◽  
Kidney Disease ◽  
County Hospital ◽  
End Stage Kidney Disease ◽  
Long Duration ◽  
End Stage

Abstract Background : Chronic Kidney Disease (CKD) in patients with type 2 diabetes enhances their cardiovascular risk and diseases, and a strong predictor of progression to end-stage kidney disease. Early diagnosis is encouraged for referral to specialist kidney care to initiate active management that optimizes outcomes, including forestalling progression to end-stage kidney disease. This study was conducted in a regional referral public health facility in Central Kenya with a high prevalence of type 2 diabetes. It was aimed at finding out the burden of undiagnosed chronic kidney disease in their clinic of ambulatory patients with type 2 diabetes who dwell mainly in the rural area. Methods : A cross-sectional study was conducted at the out-patient of Nyeri County hospital where 385 patients were enrolled over five months. Informed consent was obtained and clinical evaluation was done. A spot sample of urine was obtained for albuminuria and venous blood drawn for HbA1c, Lipids and serum creatinine. Estimated GFR (eGFR) was calculated using the Cockroft-Gault equation. Chronic kidney disease (CKD) was classified on KDIGO scale. Albuminuria was reported as either positive or negative. Main outcomes measure: Estimated Glomerular filtration rate and albuminuria as markers of chronic kidney disease. Results : A total of 385 participants were included in the study, 252 (65.5%) were females. There were 39.0 % (95%CI 34.3-44.2) patients in CKD/KDIGO stages 3, 4 and 5 and 32.7% (95%CI, 27.8-37.4) had Albuminuria. The risk factors that were significantly associated with chronic kidney disease/KDIGO stages 3, 4 and 5 were: age >50years, long duration with diabetes >5years and hypertension. Employment and paradoxically, obesity reduced the odds of having CKD, probably as markers of better socio-economic status. Conclusion : Unrecognized CKD of KDIGO stages 3,4 and 5 occurred in over thirty percent of the study patients. The risk factors of hypertension, age above 50, long duration of diabetes should help identify those at high risk of developing CKD, for screening and linkage to care. They are at high risk of progression to end-stage kidney disease and cardiovascular events. The imperative of screening for chronic kidney disease is availing care in publicly-funded hospitals.

scholarly journals The Burden of Unrecognised Chronic Kidney Disease in Patients With Type 2 Diabetes at a County Hospital Clinic in Kenya: Implications to Care and Need for Screening

2019 ◽  
Author(s):  
Frederick C. F. Otieno ◽  
Elijah N Ogola ◽  
Mercy W Kimando ◽  
Ken K Mutai
Keyword(s):  
Risk Factors ◽  
Type 2 Diabetes ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Strong Predictor ◽  
Active Management ◽  
County Hospital ◽  
End Stage Kidney Disease ◽  
End Stage

Abstract Background Chronic Kidney Disease (CKD) in patients with type 2 diabetes enhances the cardiovascular risk profiles and disease, and a strong predictor of progression to end-stage kidney disease. Early diagnosis is encouraged for referral to specialist kidney care to initiate active management that would optimize outcomes including forestalling progression to end-stage kidney disease. This study was conducted in a regional referral public health facility in Central Kenya with a higher prevalence of type 2 diabetes. It was aimed at finding out the burden of chronic kidney disease in their clinic of ambulatory patients with type 2 diabetes from, mainly, the rural area. Methods This was a cross-sectional survey conducted at the out-patient diabetes clinic of Nyeri County hospital. A total of 385 participants with type 2 diabetes were enrolled over five (5) months. Each subject gave informed consent to participate wherein clinical evaluation was done, a spot sample of urine obtained for albuminuria and venous blood drawn for HbA1c, Lipids and serum creatinine. Estimated GFR (eGFR) was calculated using the Cockroft-Gault equation. Chronic kidney disease (CKD) was classified on KDIGO scale. Albuminuria was reported as either positive or negative. Main outcomes measure Estimated Glomerular filtration rate and albuminuria as markers of chronic kidney disease. Results Of the 385 participants included in the study, 252 (65.5%) were females. Thirty nine per cent, 39.0%(95%CI 34.3-44.2) had CKD/KDIGO stages 3, 4 and 5 while 32.7% (95%CI, 27.8-37.4) had Albuminuria. The risk factors that were significantly associated with chronic kidney disease/KDIGO stages 3, 4 and 5 were: age >50years, long duration with diabetes >5years and hypertension. Employment and, paradoxically, obesity reduced the odds of having CKD, probably as markers of better socio-economic status. Conclusion Therefore, patients with type 2 diabetes should be screened for CKD using spot-urine albuminuria and eGFR, then risk-stratified further for cardiovascular disease and likelihood of progression to ESRD. Reducing proteinuria and optimizing control of the modifiable risk factors, especially unawareness, hypertension and hyperglycaemia, by linkage to and retention in quality care is the imperative of screening for chronic kidney disease which is the challenge in publicly-funded hospitals.

scholarly journals Serum Erythroferrone Levels Associate with Mortality and Cardiovascular Events in Hemodialysis and in CKD Patients: A Two Cohorts Study

2019 ◽  
Vol 8 (4) ◽  
pp. 523 ◽  
Author(s):  
Spoto ◽  
Kakkar ◽  
Lo ◽  
Devalaraja ◽  
Pizzini ◽  
...  
Keyword(s):  
Kidney Disease ◽  
Iron Absorption ◽  
Linear Increase ◽  
Enzyme Linked Immunosorbent Assay ◽  
End Stage Kidney Disease ◽  
End Point ◽  
Traditional Risk Factors ◽  
End Stage ◽  
Stage 1 ◽  
The Relationship

Erythroferrone (ERFE) is a hepcidin inhibitor whose synthesis is stimulated by erythropoietin, which increases iron absorption and mobilization. We studied the association between serum ERFE and mortality and non-fatal cardiovascular (CV) events in a cohort of 1123 hemodialysis patients and in a cohort of 745 stage 1–5 chronic kidney disease (CKD) patients. Erythroferrone was measured by a validated enzyme-linked immunosorbent assay (ELISA). In the hemodialysis cohort, serum ERFE associated directly with erythropoiesis stimulating agents (ESA) dose (p < 0.001) and inversely with serum iron and ferritin (p < 0.001). Erythroferrone associated with the combined outcome in an analysis adjusting for traditional risk factors, factors peculiar to end-stage kidney disease, serum ferritin, inflammation, and nutritional status (HR, hazard ratio, (5 ng/mL increase: 1.04, 95% confidence interval, CI: 1.01–1.08, p = 0.005). Furthermore, treatment with ESA modified the relationship between ERFE and the combined end-point in adjusted analyses (p for the effect modification = 0.018). Similarly, in CKD patients there was a linear increase in the risk for the same outcome in adjusted analyses (HR (2 ng/mL increase): 1.04, 95% CI: 1.0–1.07, p = 0.015). Serum ERFE is associated with mortality and CV events in CKD and in HD patients, and treatment by ESA amplifies the risk for this combined end-point in HD patients.

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