scholarly journals Anemia and atrial fibrillation as independent risk factors for new-onset chronic kidney disease: the TAMA-MED Project-CKD and AF

2021 ◽  
Author(s):  
Tomohiro Kaneko ◽  
Eitaro Kodani ◽  
Hitomi Fujii ◽  
Risa Asai ◽  
Miyako Seki ◽  
...  
Keyword(s):  
Risk Factors ◽  
Atrial Fibrillation ◽  
Chronic Kidney Disease ◽  
Renal Function ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Filtration Rate ◽  
Estimated Glomerular Filtration Rate ◽  
Rapid Deterioration ◽  
New Onset

Abstract Background Various risk factors have been identified for the new-onset or rapid deterioration of chronic kidney disease. However, it is thought that many risk factors that have not yet been clarified remain. Methods Based on the results of specific annual health checkups at Tama City (n = 18,383) in 2017 and 2018, we analyzed the factors that cause new-onset chronic kidney disease and the risk factors that rapidly worsen renal function. For new-onset chronic kidney disease, proteinuria and estimated glomerular filtration rate < 60 mL/min/1.73m2 were examined separately. Rapid deterioration of renal function was defined as an estimated glomerular filtration rate of ≥ 25% lower than the previous year. Results Multivariate analysis showed that, in addition to age and impaired glucose tolerance, anemia, and atrial fibrillation were risk factors for the new appearance of proteinuria. Risk factors for a decrease in estimated glomerular filtration rate < 60 mL/min/1.73m2 were age and hyperuricemia. Age, systolic hypertension, urinary protein and urinary occult blood, high triglycerides, and anemia were significant risk factors for the rapid deterioration of renal function in patients with chronic kidney disease stage 3 or later. Conclusions From the results of specific annual health checkups at Tama City, atrial fibrillation, anemia, and hyperuricemia were identified as risk factors for new-onset chronic kidney disease over a short period of 1 year. Anemia was also a factor for the rapid deterioration of kidney function in subjects with renal dysfunction.

scholarly journals A Novel Creatinine-Based Equation to Estimate Glomerular Filtration Rate in Chinese Population With Chronic Kidney Disease: Implications for DOACs Dosing in Atrial Fibrillation Patients

2021 ◽  
Vol 12 ◽  
Author(s):  
Ling-Yun Zhou ◽  
Wen-Jun Yin ◽  
Jun Zhao ◽  
Bi-Kui Zhang ◽  
Can Hu ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Chronic Kidney Disease ◽  
Renal Function ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Linear Regression Analysis ◽  
Dynamic Imaging ◽  
Adverse Outcomes

Background: Over/under-estimating renal function may increase inappropriate dosing strategy associated adverse outcomes; however, previously reported equations to estimate renal function have limited accuracy in chronic kidney disease (CKD) patients. Consequently, we intended to develop a novel equation to precisely estimate renal function and subsequently guide clinical treatment for CKD patients.Methods: A novel approach, Xiangya-s equation, to estimate renal function for CKD patients was derived by linear regression analysis and validated in 1885 patients with measured glomerular filtration rate (mGFR) < 60 ml/min/1.73 m2 by renal dynamic imaging at three representative hospitals in China, with the performance evaluated by accuracy, bias and precision. In the meanwhile, 2,165 atrial fibrillation (AF) patients who initiated direct oral anticoagulants (DOACs) between December 2015 and December 2018 were identified and renal function was assessed by estimated creatinine clearance (eCrCl). Events per 100 patient-years was calculated. Cox proportional hazards regression was applied to compare the incidence of outcomes of each group.Results: Xiangya-s equation demonstrated higher accuracy, lower bias and improved precision when compared with 12 creatinine-based and 2 CysC-based reported equations to estimate GFR in multi-ethnic Chinese CKD patients. When we applied Xiangya-s equation to patients with AF and CKD prescribed DOACs, wide variability was discovered in eCrCl calculated by the Cockcroft-Gault (CG), Modification of Diet in Renal Disease Study (MDRD), Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI), Xiangya equation which we had developed for generally patients and Xiangya-s equations, which persisted after grouping by different renal function stages. Equation choice affected drug-dosing adjustments, with the formulas agreeing for only 1.19%, 5.52%, 33.22%, 26.32%, and 36.61% of potentially impacted patients for eCrCl cutoffs of <15, <30, 15–49, 30–49, ≥50 ml/min, respectively. Relative to CG equation, accordance in DOACs dosage was 81.08%, 88.54%, 62.25%, and 47.68% for MDRD, CKD-EPI, Xiangya and Xiangya-s equations for patients with CrCl < 50 ml/min (eCrCl cutoffs of <30, 30–49, ≥50 ml/min), respectively. Reclassification of renal function stages by Xiangya-s equation was significantly associated with stroke or systemic embolism, non-major clinically relevant bleeding and any bleeding events.Conclusion: Xiangya-s equation provides more accurate GFR estimates in Chinese CKD patients who need consecutive monitoring of renal function, which may assist clinicians in choosing appropriate drug dosages.

scholarly journals Vascular Calcification as a Novel Risk Factor for Kidney Function Deterioration in the Nonelderly

2021 ◽  
Author(s):  
Samel Park ◽  
Nam‐Jun Cho ◽  
Nam Hun Heo ◽  
Eun‐Jung Rhee ◽  
Hyowook Gil ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Glomerular Filtration ◽  
Kidney Function ◽  
Vascular Calcification ◽  
Filtration Rate ◽  
Estimated Glomerular Filtration Rate ◽  
Tertiary Teaching

Background The relationship between vascular calcification and chronic kidney disease is well known. However, whether vascular calcification affects renal function deterioration remains unclear. We investigated whether kidney function deteriorated more rapidly in individuals with higher vascular calcification indicated by the coronary artery calcium score (CACS). Methods and Results Individuals with a normal estimated glomerular filtration rate (>60 mL/min per 1.73 m 2 ) who underwent cardiac computed tomography in our institution (a tertiary teaching hospital in Cheonan, Korea) from January 2010 to July 2012 were retrospectively reviewed. All participants were aged 20 to 65 years. Among 739 patients, 447, 175, and 117 had CACSs of 0, 1 to 99, and ≥100 units, respectively. The participants were followed for 7.8 (interquartile range, 5.5–8.8) years. The adjusted annual estimated glomerular filtration rates declined more rapidly in patients in the CACS ≥100 group compared with those in the CACS 0 group (adjusted‐β, −0.40; 95% CI, −0.80 to −0.03) when estimated using a linear mixed model. The adjusted hazard ratio in the CACS ≥100 group for Kidney Disease: Improving Global Outcomes criteria (a drop in estimated glomerular filtration rate category accompanied by a 25% or greater drop in estimated glomerular filtration rate) was 2.52 (1.13–5.61). After propensity score matching, more prevalent renal outcomes (13.2%) were observed in patients with a CACS of ≥100 compared with those with a CACS of 0 (1.9%), with statistical significance ( P =0.004). Conclusions Our results showed that renal function declined more rapidly in patients with higher CACSs, suggesting that vascular calcification might be associated with chronic kidney disease progression.

The Prevalence of Chronic Kidney Disease in Rheumatology Outpatients

2009 ◽  
Vol 54 (2) ◽  
pp. 9-12 ◽  
Author(s):  
AJ Hill ◽  
RJ Thomson ◽  
JA Hunter ◽  
JP Traynor
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Glomerular Filtration ◽  
Prevalence Rate ◽  
Filtration Rate ◽  
Estimated Glomerular Filtration Rate ◽  
Monthly Basis ◽  
Definition Of

Background The introduction of routine reporting of estimated glomerular filtration rate coupled with a new definition of chronic kidney disease (CKD) has led to an unprecedented focus on kidney disease in many patient groups. In light of this, we performed an audit of patients attending the rheumatology clinics to assess the prevalence of CKD in this population. Methods Over a four week period, we reviewed the renal function of all patients attending the rheumatology clinics and day ward at our hospital (n=351). Renal function was assessed using the 4-variable MDRD formula. We then interviewed those patients with estimated glomerular filtration rate (eGFR) of 59 ml/min or lower. Results We found a prevalence rate of 18% for stage 3 CKD or lower in our audit population. Surprisingly, 60.3% of patients in this category were not aware of any problems with their kidneys (n=38). Conclusions The prevalence rate of 18% for stage 3 CKD or lower is significantly higher than the five per cent reported within the general population. As a result of this audit, we now plan to ensure that these patients undergo measurement of blood pressure, eGFR, and urinalysis on a six to twelve monthly basis.

Abstract 4580: Proteinuria and Reduced Glomerular Filtration Rate Independently Increase Risk of Thromboembolism in Atrial Fibrillation: The ATRIA Study

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Alan S Go ◽  
Margaret C Fang ◽  
Natalia Udaltsova ◽  
Yuchiao Chang ◽  
Leila H Borowsky ◽  
...  
Keyword(s):  
Risk Factors ◽  
Atrial Fibrillation ◽  
Chronic Kidney Disease ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Stroke Risk ◽  
Thromboembolic Events ◽  
Stroke Risk Factors

Atrial fibrillation (AF) substantially increases the risk of ischemic stroke but this risk varies among patients with AF. Existing stroke risk stratification schemes have limited predictive ability. Chronic kidney disease is a major cardiovascular risk factor, but whether it independently increases the risk for stroke in AF is unknown. In a large, diverse cohort of adults with nonvalvular atrial fibrillation, we examined how chronic kidney disease (i.e., reduced glomerular filtration rate or proteinuria) affects risk of thromboembolism off anticoagulation in patients with AF. We estimated glomerular filtration rate (eGFR) using the Modification of Diet in Renal Disease equation and proteinuria from urine dipstick results found in laboratory databases. Data on patient characteristics, stroke risk factors, longitudinal use of warfarin therapy, and thromboembolic events between 1996 –2003 were ascertained from validated clinical databases. Thromboembolic events (ischemic stroke and other systemic embolism) were confirmed by chart review. We used multivariable Poisson regression to evaluate the independent association between reduced eGFR and documented proteinuria with risk of thromboembolic events off warfarin therapy. During 33,165 person-years off anticoagulation among 13,535 patients with AF and no prior dialysis or renal transplant, we observed 676 incident thromboembolic events. After adjustment for known risk factors for stroke and level of eGFR, proteinuria increased the risk of thromboembolism by 54% (adjusted relative risk [RR] 1.54, 1.28 to 1.84). Independent of proteinuria and other confounders, there was a graded, increased risk of stroke associated with progressively lower eGFR compared with eGFR ≥60 (in units of ml/min/1.73 m 2 ): adjusted RR 1.16 (95% CI: 0.95 to 1.40) for eGFR 45– 59, and RR 1.39 (1.12 to 1.71) for eGFR <45 (P=0.001 for trend). Chronic kidney disease increases the risk of thromboembolism in AF independent of other stroke risk factors. Knowing the level of kidney function and presence of proteinuria can potentially improve risk stratification for decision-making about the use of antithrombotic therapy for stroke prevention in AF.

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