The Search for a New Marker of Renal Function in Older Patients with Chronic Kidney Disease Stages 3–4: Usefulness of Cystatin C-Based Equations

2009 ◽  
Vol 112 (3) ◽  
pp. c164-c170 ◽  
Author(s):  
Néstor Fontseré ◽  
Vicens Esteve ◽  
Ana Saurina ◽  
Mónica Pou ◽  
Nuria Barba ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Kidney Disease ◽  
Cystatin C ◽  
Older Patients ◽  
Disease Stages

scholarly journals High-sensitive cardiac troponin for the diagnosis of acute myocardial infarction in different chronic kidney disease stages

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Daijin Ren ◽  
Tianlun Huang ◽  
Xin Liu ◽  
Gaosi Xu
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Chronic Kidney Disease ◽  
Renal Function ◽  
Kidney Disease ◽  
Cardiac Troponin ◽  
Optimal Cutoff ◽  
Cutoff Values ◽  
Optimal Value ◽  
Disease Stages

Abstract Background Chronic kidney disease (CKD) are associated with acute myocardial infarction (AMI). High-sensitive cardiac troponin (hs-cTn) has been evidenced to enhance the early diagnostic accuracy of AMI, but hs-cTn levels are often chronically elevated in CKD patients, which reduces their diagnostic utility. The aim of this study was to derive optimal cutoff-values of hs-cTn levels in patients with CKD and suspected AMI. Methods In this retrospective paper, a total of 3295 patients with chest pain (2758 in AMI group and 537 in Non-AMI group) were recruited, of whom 23.1% were had an estimated glomerular filtration rate (eGFR) of < 60 mL min−1 (1.73 m2)−1. Hs-cTnI values were measured at presentation. Results AMI was diagnosed in 83.7% of all patients. The optimal value of hs-TnI in diagnosing AMI was 1.15 ng mL−1, which were higher in males than females comparing different cutoff-values of subgroups divided by age, gender and renal function, and which increased monotonically with decreasing of eGFR because in patients with CKD without AMI, the correlation between hs-cTnI and renal function is low but significant (r2 = 0.067, P < 0.001). Conclusions Different optimal cutoff-values of hs-cTnI in the diagnosis of AMI in patients with CKD were helpful to the clinical diagnosis of AMI in various populations and were higher in males than females, but which was needed to be validated by multicenter randomized controlled clinical studies in the future.

scholarly journals Aortic Stiffness Is Independently Associated With Rate of Renal Function Decline in Chronic Kidney Disease Stages 3 and 4

Hypertension ◽  
2010 ◽  
Vol 55 (5) ◽  
pp. 1110-1115 ◽  
Author(s):  
Martin L. Ford ◽  
Laurie A. Tomlinson ◽  
Thomas P.E. Chapman ◽  
Chakravarthi Rajkumar ◽  
Stephen G. Holt
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Kidney Disease ◽  
Aortic Stiffness ◽  
Renal Function Decline ◽  
Disease Stages

Comparisons of cystatin C with creatinine for evaluation of renal function in chronic kidney disease

2009 ◽  
Vol 13 (6) ◽  
pp. 598-604 ◽  
Author(s):  
Masatomo Yashiro ◽  
Tadashi Kamata ◽  
Hiroyoshi Segawa ◽  
Yuko Kadoya ◽  
Toru Murakami ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Kidney Disease ◽  
Cystatin C

scholarly journals Serum Cystatin C - Marker of Inflammation and Cardiovascular Morbidity in Chronic Kidney Disease Stages 1-4

2015 ◽  
Vol 27 (2) ◽  
pp. 75 ◽  
Author(s):  
Alma Muslimovic ◽  
Denijal Tulumovic ◽  
Senad Hasanspahic ◽  
Aida HamzicMehmedbasic ◽  
Ramajana Temimovic
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Cystatin C ◽  
Cardiovascular Morbidity ◽  
Serum Cystatin C ◽  
Serum Cystatin ◽  
Disease Stages

scholarly journals Serum Cystatin C as an Endogenous Marker of Renal Function in Patients with Chronic Kidney Disease (CKD)

2018 ◽  
Vol 4 (1) ◽  
pp. 3-12
Author(s):  
Md Anwarul Haque Faraji ◽  
Mohammed Rashed Anwar ◽  
Dilip Kumar Debnath ◽  
Md Babrul Alam ◽  
Syed Mahbub Morshed ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Kidney Disease ◽  
Serum Creatinine ◽  
Cystatin C ◽  
Obstructive Uropathy ◽  
Stage Iv ◽  
Serum Cystatin C ◽  
College Hospital ◽  
Serum Cystatin

Background: Cystatin C is being considered as a potential replacement for serum creatinine as a filtration marker.Objectives: This present study was conducted to determine the validity of Cystatin C as a renal function test and to compare the Cystatin C and serum creatinine level between the CKD cases and person not having CKD.Methodology: The present case control study was conducted in the department of Nephrology of Dhaka Medical College Hospital during the period of January 2009 to December 2009 with the aim to find out the serum Cystatin C as diagnostic markers of chronic kidney disease. In the present study total 100 respondents were included. Among them 50 were CKD patients and another 50 were without CKD. Results: It was an age and sex matched study. Out of 50 patients with CKD, 29 (58.0%) were in the stage IV followed by 15 (30.0%) were in the stage III and rest 6 (12.0%) were in the stage V. In CKD group 31 (62.0%) had glomerulonephritis, 18 (36.0%) had HTN, 11 (22.0%) had DM and 3 (6.0%) had obstructive uropathy.  In without CKD group 9 (18.0%) had HTN, 6 (12.0%) had DM. Mean±SD of Serum Creatinine in CKD and without CKD groups were 5.73±2.69 and 0.85±0.11mg/dl respectively. Mean±SD of Serum Cystatin C in CKD and without CKD groups were 3.59±1.21 and 0.71±0.09 mg/dl respectively. In all patients sensitivity of Cystatin C to diagnose CKD was 100.0% and specificity also100.0%. Sensitivity of serum creatinine to diagnose CKD was 88.0% and specificity was 100.0%.Conclusions: Cystatin C proved more reliable than creatinine and was comparable to plasma creatinine and Cockcroft-Gault estimation. Serum Cystatin C had higher diagnostic accuracy with high sensitivity and specificity to detect renal function and is a reliable marker of renal function. Journal of Current and Advance Medical Research 2017;4(1):3-12

Renal function – estimation of glomerular filtration rate

2006 ◽  
Vol 44 (11) ◽  
Author(s):  
Lothar Thomas ◽  
Andreas R. Huber
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Serum Creatinine ◽  
Glomerular Filtration ◽  
Cystatin C ◽  
Filtration Rate ◽  
Routine Laboratory ◽  
Prediction Equations

AbstractAssessment and follow-up of renal dysfunction is important in the early detection and management of chronic kidney disease. The glomerular filtration rate (GFR) is the most accurate measurement of kidney disease and is reduced before the onset of clinical symptoms. Drawbacks to the measurement of GFR include the high cost and incompatibility with routine laboratory monitoring. Serum creatinine determination is a mainstay in the routine laboratory profile of renal function. The measurement of serum cystatin C has been proposed as a more sensitive marker for GFR. According to National Kidney Foundation-K/DOQ1 clinical guidelines for chronic kidney disease, serum markers should not be used alone to assess GFR. Based on prediction equations, clinical laboratories should report an estimate of GFR, in addition to reporting the serum value. In this article, information is presented on how best to estimate GFR using prediction equations for adults and for children. Using serum creatinine concentration with the Modification of Diet in Renal Disease (MDRD) study equation offers a suitable estimation of GFR in adults. The cystatin C prediction equation with the use of a prepubertal factor seems superior to creatinine-based prediction equations in children of <14years.Clin Chem Lab Med 2006;44:1295–302.

scholarly journals Renal function: glomerular filtration rate and renal concentration capacity in mild primary hyperparathyroidism

2016 ◽  
Vol 62 (5) ◽  
pp. 71-72
Author(s):  
Svetlana S. Mirnaya ◽  
Natalya G. Mokrysheva
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Urine Osmolality ◽  
Mild Form ◽  
Disease Stages

Introduction. Patients with primary hyperparathyroidism (pHPT) run an increased risk of death, and in some studies cardiovascular diseases were inversely related to glomerular filtration rate (GFR) and urine osmolality.Aim: to evaluate the renal filtration function and concentration capacity in patients with mild primary hyperparathyroidism.Materials and methods. The study included 100 patients with pHPT (median age 57 [52;61]), including 33 with mild form (median age 54 [45;60]). Changes in GFR and osmolality index were evaluated in 29 patients after surgery for pHPT. Follow-up period was up to 24 months.Osmolality index was calculated as urine osmolality to blood osmolality ratio. Renal concentration capacity impairment was diagnosed with osmolality index less than 2. Glomerular filtration rate was calculated by Modification of Diet in Renal Disease Study (MDRD) formula. Chronic kidney disease stage was estimated accordingly to current recommendations.Results. Osmolality index in patients with mild pHPT was low with median 1.65 [1.4; 2.43]. We found a high prevalence of renal concentration capacity impairment in patients with mild pHPT, that was 70%. Mean GFR was 90.9 [73.3; 95.6] ml/min/1,73 m2. Prevalence of chronic kidney disease stages 3-4 was 6% in patients with mild pHPT. Changes in renal concentration capacity in long-term period after surgery for pHPT were characterized by increase of osmolality index, also in patients with mild form (initially 1.75 [1.4; 2.14], after surgery 2.38 [1.84; 2.54]), changing Me was +12.4% in 6-24 months (p=0.012). Changes in renal function in long-term period after surgery for pHPT were characterized by decrease of GFR within the limits of chronic kidney disease stages 1-2, also in patients with mild form.Conclusions. Renal concentration capacity impairment is common in mild pHPT and is restorated after surgery for pHPT. The findings of this study add cause for measurement of urine osmolality or osmolality index in all patients with pHPT. Our results confirm the requirement of estimating GFR in pHPT patients not only while active disease, but also in remission after surgery for pHPT.

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