Nephrologists. from. All physicians Patients Health care system Policy makers World health leaders Researchers. Clinical laboratories
|
|
- Clementine King
- 6 years ago
- Views:
Transcription
1 Creatinine standardization The most important expectation of Nephrologists All physicians Patients Health care system Policy makers World health leaders Researchers Drug manufacturer Clinical laboratories from Iranian laboratory system
2 In modern medicine LAB TESTS AS DOUBLE-EDGED EDGED SWORD
3 An example : One recent study in the United States: laboratory calibration errors that affect the accuracy of calcium test results is costing $66 to $199 million dollars per year as a result of the costs of the clinical decisions that were made in response to the inaccurate calcium li test results Downer K: How much does test calibration error cost? NIST report suggests $60-$199M for calcium testing alone. Clin Lab News 30(4): 1, 8 9, 2004
4 NONCOMMUNICABLE DISEASE IS THE PROBLEM OF DEVELOPED AND DEVELOPING COUNTRIES
5
6 Chronic kidney disease (CKD) is a worldwide public health problem Number of end-stage renal disease (ESRD) Medicare-funded e e patients ts in US: From 86,354 in 1983, to 547,982 as of 2008 Medicare costs per person per year is $66,000 The estimated number of people with earlier stages of CKD is 19 million
7
8 Overall prevalence of CKD stages 1 through 5 is 14.2 percent (US data) 1.8 percent 3.2 percent 7.7 percent 0.35 percent 2.4 percent
9 IRAN CKD STATISTICS
10 پيشگيری از بيماری ھای کليوی در ایران موجود پيشگيری از ابيماریھای وضع کليه در ایران شناسایی مشکل : شيوع مشابه کشور ھای پيشرفته رشد ساالنه 12 درصد در بيماران پيشرفته کليه یعنی سالی 4000 نفر یا 3 برابر شدن در ده سال افزایش بيماران به دليل زنده تلف شدن ساالنه افزایش نقش دیابت از حاضر در حال ماندنشان سال از عمر مردم 16 درصد در سال 1378 کشور 45 به در صدی 20 نقش فشار خون درصد
11 The growing number of patients with ESRD in IRAN
12 High prevalence of chronic kidney disease in Iran: a large population-based study Farhad Hosseinpanah1, Farshad Kasraei1, Amir A Nassiri1 and Fereidoun Azizi participants aged over 20 years, in Tehran, Iran Overall prevalence of CKD with the abbreviated MDRD equation was 18.9%
13 J Nephrol 2009; 22(1): The epidemiology of adult chronic kidney disease in a population-based study in Iran: prevalence and associated risk factors Mohammad R. Safarinejad 17,240 persons of either sex over 14 years old from 30 counties of Iran 8% had GFR<60%
14 Prevalence of Chronic Kidney Disease and its Associated Risk Factors: The First Report from Iran Using Both Micro albuminuria and Urine Sediment Iraj Najafi, et al enrolled subjects in this study (8.89%) were categorized as CKD stages III-V 3591 participants ( 18 years old) Prevalence of CKD stages 3 to 5 (CKD S3-5), i.e., GFR <60 ml/min/1.73 m2, was 4.6%
15 A high serum creatinine level was considered 1.5 mg/dl or higher in men and 1.3 mg/dl or higher in women A high serum creatinine level was demonstrated in 343 participants p (37.9%),
16 Screening for decreased renal function in taxi drivers in Tehran, Iran. Mahdavi-MazdehMazdeh M, Saeed Hashemi Nazri S, Hajghasemi E, Nozari B, Zinat Nadia H, Mahdavi A. Source Department of Nephrology, Tehran University of Medical Sciences; Research Center of Iranian Tissue Bank, Tehran, Iran. The survey covered 31,999 taxi driver across Tehran Using the MDRD equation, overall prevalence of egfr <60 ml/min/1.73 m(2) was 6.5%
17 MANAGEMENT OF CRISIS
18 The main steps in CKD crisis management 1. Epidemiologic studies (Spec. in high risk groups) 2. Defining the burden of CKD 3. Classification and guideline development 4. Clinical researches 5. Comparative studies 6. Primary and secondary prevention
19 No Cr Std. = Fail to reach finish line
20 LABORATORY TESTS OF KIDNEY PROBLEMS
21 Creatinine and albumin in the urine
22 GFR TESTS AND FORMULAS
23 THE GFR and serum Creatinine
24
25 Gold standards tests for GFR mesearment The urinary clearance of the exogenous substance inulin is considered the gold standard method Radioisotopes such as iothalamate and other markers have replaced inulin in clinical laboratories These methods are expensive, time- consuming, and not widely available
26 ESTIMATING THE GFR(eGFR) Measuring 24-hour creatinine clearance Burdensome for the patient The results are not always reliable because of variations in collection technique Using the creatinine clearance does not resolve problems with using the serum creatinine concentration, such as tubular secretion and overestimation i of GFR. CCr = [urine creatinine (mg per dl) x urine volume (ml per 24 hour)] /[serum Cr (mg gp per dl) x 1, 440 minute]
27 The Cockcroft-Gault equation GFR = [([140 age (years)] x lean body weight in kg)/(serum Cr x 72)] x (0.85 if female) Its main drawbacks: It was developed to model creatinine It was developed to model creatinine clearance, itself an imperfect estimation of GFR It depends heavily on the accuracy of the value for lean body weight used in the equation.
28 MDRD Modified MDRD formula GFR, in ml per minute per 1.73 m = x(serumcr ) x (age ) x (0.742 if female) x (1.21 if black) The MDRD equation has now largely replaced the Cockcroft-Gault equation it is normalized to a standard body surface area (1.73 m2), obviating the need to determine ideal body weight can be reported directly with any laboratory report The main drawback of the MDRD equation is that it tends to underestimate GFR at higher ranges of kidney function, ie, higher than 60 ml/min/1.73 m 2 ) less accurate at racial and ethnic groups outside of North America, Europe, and Australia
29 The CKD-EPI equation The Chronic Kidney Disease Epidemiology Collaboration study (CKD-EPI) equation, (2009,) is expected to eventually replace the currently used MDRD equation, as it performs better at higher ranges of GFR It was developed with the objective of reporting a specific value even when the estimated GFR is greater than 60 ml/min/1.73 /1 m2
30
31 Schwartz and the Counahan Barratt equations For estimating GFR in children The MDRD contributes to substantial uncertainty in estimating GFR in children
32 MDRD or CKD-EPI Neither the CKD-EPI nor the MDRD Study equation is optimal for all populations p and GFR ranges A general practice and public health perspective p favors the CKD-EPI equation For nephrology practices and transplant patients the MDRD is better
33 egfr Reporting Estimates of glomerular filtration rate (GFR) from serum creatinine levels are now reported by more than 80% of clinical laboratories in the United States staging g chronic kidney disease determining drug dosages stratifying risk
34 TRUENESS OF CR PRECISION AND STANDARDISATION
35 Effect of creatinine measurement imprecision on estimated GFR 2003 CAP survey- Miller WG Myers GL Ashwood ER Killeen AA Wang E Thienpont LM et 2003 CAP survey- Miller WG, Myers GL, Ashwood ER, Killeen AA, Wang E, Thienpont LM, et al. Creatinine measurement: state of the art in accuracy and inter-laboratory harmonization. Arch Pathol Lab Med 2005;129:
36 Clinical Laboratory Based Analytical Systems for Measuring Serum Creatinine to Assess GFR The methods most widely used to measure serum creatinine: alkaline picrate methods enzymatic or partially enzymatic assays HPLC methods Isotope-dilution mass spectrometry (IDMS) high-order reference methods have been developed for assignment of reference materials but are available in only a few highly hl specialized laboratories worldwide.
37 alkaline picrate methods The method of Jaffe The presence of interfering substances, particularly proteins, in serum can lead to the overestimation of serum creatinine by as much as 15% 25% by various Jaffe methodologic applications Interferences from glucose and acetoacetate are particularly important by measuring several hundred serum pools by gas chromatography (GC)-IDMS and the Jaffe method Results indicated that to get agreement with the enzymatic method, an offset of mg/dl was necessary
38 enzymatic methods Although the enzymatic methods have been reported to have generally fewer interferences than the Jaffe methods, there have been reports of various substances that do interfere
39 HPLC procedures HPLC appears to provide an excellent designated comparison method for inhouse use by manufacturers
40 ms-based procedures GC-IDMS is considered the method of choice for establishing the true concentration of creatinine in serum because of its excellent specificity and relative SD <0.3%
41 ISO for tracebility of Lab results A unified effort is required Establishing measurement traceability is an important tool This effort must involve international cooperation among the in vitro diagnostic (IVD) manufacturers, clinical laboratories,,professional organizations,,government agencies, and EQAS/PT providers. To achieve improved accuracy of creatinine results requires that the values assigned by manufacturers to calibrators and control materials are traceable to high-order h reference measurement procedures and reference materials. The international organization for standardization (iso) has developed a written standard that details a pathway for establishing traceability of clinical laboratory measurement results
42 We are not too late if we began today In 2006, a serum matrix standard reference material (SRM) was prepared by the National Institute of Standards and Technology and submitted to the Joint Committee on Traceability in Laboratory Medicine i Use of this material, in combination with the isotopedilution mass spectrometry reference method, was intended d to assist reagent manufacturers in achieving i better consensus among methods By the end of 2009, the calibration of most clinical laboratory methods was traceable to the SRM and isotope-dilution mass spectrometry
43 THE BRITISH COLOMBIA STANDARDIZATION PROGRAM J Am Soc Nephrol 19: , doi: /ASN /ASN
44 Abstract 107 laboratories, which tested creatinine on 124 analyzers from six different manufacturers, voluntarily participated Each laboratory received a correction factor to standardize them to the isotope dilution mass spectrometry reference method The adjusted values were then used to calculate egfr using the Modification of Diet in Renal Disease (MDRD) equation The standardization program reduced the average total error in the measurement of creatinine i from 23.9 to 8.7% and the average analytical bias from 16.5 to 2.7% Implementing this program on a larger scale could reduce the rate of incorrect classification of stage 3 chronic kidney disease by 84%
45 Introduction Serum creatinine test results can vary significantly between clinical laboratories, a fact that is often not well recognized by health care professionals This variation is greater in the normal and near-normal normal range of creatinine measurements Regional initiatives to implement egfr reporting must first take steps to standardize the Cr
46 Location of study British Columbia introduced egfr reporting in October 2003, and in March 2004, a provincial program was introduced to standardize the measurement of creatinine British Columbia is a province in Canada with a population of approximately 4.1 million people. The provincial creatinine standardization program is a voluntary project, which was carried out in partnership with the Canadian External Quality Assessment Laboratory
47 Results funded centrally and operates on a voluntary basis The majority (94%) of clinical ca laboratories ato in British Columbia are participating
48 %TE for the measurement of creatinine (98.9 μmol/l) at baseline. %TE for the measurement of creatinine (98.9 μmol/l) at baseline. The between-day precision (coefficient of variance) is also plotted (black bars) Komenda P et al. JASN 2008;19: by American Society of Nephrology
49 The percentage total error (%TE) ranged from 4 to 54% with an overall provincial i average of 23.9% if a serum sample with a true creatinine concentration of 100 μmol/l were to be measured in the best laboratory in the province, then the reported result would fall between 96 and 104 μmol/l 95% of the time; if it were tested in the worst lb laboratory, then the reported result would be fall between 45 and 154 μmol/l 95% of the time
50 (A) Unadjusted creatinine performed on one test sample from each of the 107 laboratories in the province as compared with the reference sample. The average calibration bias for the measurement of creatinine across the province was 16.5% (positive) Komenda P et al. JASN 2008;19: by American Society of Nephrology
51
52
53 Program Cost During year 1 of the program, the first and second components and one monitoring cycle of the third component were conducted The cost of this launch phase was $335,000 This fee covered the costs associated with acquisition of the sample sets for the program, screening of these samples for viral pathogens, shipping of samples to Belgium for assignment of target values by IDMS, shipping of the samples to participating laboratories on dry ice, data acquisition, and performance reporting together with telephone and follow-up plus ongoing administrative costs The third component of the program, composed of the ongoing monitoring and auditing of the participating laboratories three times per year, costs $135,000 per year
54 This finding indicates that, in real terms, a %TE performance goal of 11.4% is certainly achievable once the manufacturers have revised their calibration processes to be traceable to the IDMS reference method
55 The results of results An estimated 145,000 people in british columbia are at increased risk for CKD If all of the adults in british iihcolumbia were to be tested using this analytical l system, then 535,000 adult british columbians (15 yr and older) would be added to an at-risk category for stage 3 renal disease when in fact they should not be Implementing this program would reduce the rate of false-positive results by 84% and keep 449,400 people from being incorrectly classified as being at risk Misclassified patients would require some form of follow-up to confirm the presence or absence of renal disease. Follow-up might consist of two office visits ($53.06) together with the a routine urinalysis ($4.98) and urinary microalbumin ($22.10) for a follow-up expenditure per patient of $80.14 Given this example, the potential savings to be realized from reducing the creatinine calibration bias from 16.5 to 2.7% would amount to $36 million. On the basis of this follow-up, the creatinine standardization program would pay for itself if it could reduce the rate of false-positive results by 0.3%.
56 RECOMMENDATIONS FOR FUTURE NEXT ACTION PLAN
Standardization of. S.M.Boutorabi DCLS,PhD
Standardization of Creatinine Assay S.M.Boutorabi DCLS,PhD Chronic kidney disease (CKD) is a major public health problem in developed countries Why measure serum creatinine? Jaffe Reaction Creatinine +picric
More informationCreatinine & egfr A Clinical Perspective. Suheir Assady MD, PhD Dept. of Nephrology & Hypertension RHCC
Creatinine & egfr A Clinical Perspective Suheir Assady MD, PhD Dept. of Nephrology & Hypertension RHCC CLINICAL CONDITIONS WHERE ASSESSMENT OF GFR IS IMPORTANT Stevens et al. J Am Soc Nephrol 20: 2305
More informationCarboplatin Time to Drop the Curtain on the Dosing Debate
Carboplatin Time to Drop the Curtain on the Dosing Debate Jon Herrington, Pharm.D., BCPS, BCOP Judith Smith, Pharm.D., BCOP, CPHQ, FCCP, FISOPP Scott Soefje, Pharm.D., MBA, BCOP Heimberg J, et al. N Engl
More informationΕκηίμηζη ηης μεθρικής λειηοσργίας Ε. Μωραλίδης
Εκηίμηζη ηης μεθρικής λειηοσργίας Ε. Μωραλίδης Ιατρική Σχολή ΑΠΘ Νοσοκομείο ΑΧΕΠA Θεσσαλομίκη Kidney in body homeostasis Excretory function Uremic toxins removal Vascular volume maintainance Fluid-electrolyte
More informationSeung Hyeok Han, MD, PhD Department of Internal Medicine Yonsei University College of Medicine
Seung Hyeok Han, MD, PhD Department of Internal Medicine Yonsei University College of Medicine Age and Kidney Weight renal weight and thickening of the vascular intima Platt et al. Gerentology 1999;45:243-253
More informationAcute renal failure Definition and detection
Acute renal failure Definition and detection Pierre Delanaye, MD, PhD Nephrology, Dialysis, Transplantation CHU Sart Tilman University of Liège BELGIUM Definition Acute Renal Failure Acute Kidney Injury
More informationGFR and Drug Dosage Adaptation: Are We still in the Mist?
GFR and Drug Dosage Adaptation: Are We still in the Mist? Pierre Delanaye, MD, PhD Nephrology, Dialysis, Transplantation CHU Sart Tilman University of Liège BELGIUM I have no conflict of interest to declare
More information9. GFR - WHERE ARE WE NOW?
How to Cite this article: GFR Where are We Now? - ejifcc 20/01 2009 http://www.ifcc.org 9. GFR - WHERE ARE WE NOW? Joris R. Delanghe 9.1 Abstract The availability of a worldwide standard for creatinine
More informationKeywords: albuminuria; albumin/creatinine ratio (ACR); measurements. Introduction
Clin Chem Lab Med 2015; 53(11): 1737 1743 Beryl E. Jacobson, David W. Seccombe*, Alex Katayev and Adeera Levin A study examining the bias of albumin and albumin/creatinine ratio measurements in urine DOI
More information2017/3/7. Evaluation of GFR. Chronic Kidney Disease (CKD) Serum creatinine(scr) Learning Objectives
Evaluation of egfr and mgfr in CKD Use of CKD staging with case scenario Assessment of kidney function in CKD in adults Learning Objectives 台大雲林分院楊淑珍藥師 2017/03/11 Chronic Kidney Disease (CKD) Based on
More informationMeasurement and Estimation of renal function. Professeur Pierre Delanaye Université de Liège CHU Sart Tilman BELGIQUE
Measurement and Estimation of renal function Professeur Pierre Delanaye Université de Liège CHU Sart Tilman BELGIQUE 1 2 How to estimate GFR? How to measure GFR? How to estimate GFR? How to measure GFR?
More informationA New Approach for Evaluating Renal Function and Predicting Risk. William McClellan, MD, MPH Emory University Atlanta
A New Approach for Evaluating Renal Function and Predicting Risk William McClellan, MD, MPH Emory University Atlanta Goals Understand the limitations and uses of creatinine based measures of kidney function
More informationמסקנות מיישום סטנדרטיזציה של בדיקת קראטינין : שימוש בנוסחאות לחישוב egfr
מסקנות מיישום סטנדרטיזציה של בדיקת קראטינין : שימוש בנוסחאות לחישוב egfr תכנית המפגש: דרישות לסטנדרטיזציה של בדיקת קראטינין ד"ר מריאל קפלן, מנהלת אגף המעבדות, רמב"ם - הקריה הרפואית לבריאות האדם שימוש מושכל
More informationCreatinine (serum, plasma)
Creatinine (serum, plasma) 1 Name and description of analyte 1.1 Name of analyte Creatinine 1.2 Alternative names None 1.3 Description of analyte Creatinine is a heterocyclic nitrogenous compound (IUPAC
More informationEstimates of glomerular filtration rate (GFR) from serum
Annals of Internal Medicine Review Estimating Equations for Glomerular Filtration Rate in the Era of Creatinine Standardization A Systematic Review Amy Earley, BS; Dana Miskulin, MD, MS; Edmund J. Lamb,
More informationAssessing Renal Function: What you Didn t Know You Didn t Know
Assessing Renal Function: What you Didn t Know You Didn t Know Presented By Tom Wadsworth PharmD, BCPS Associate Clinical Professor UAA/ISU Doctor of Pharmacy Program Idaho State University College of
More informationMeasurement and Estimation of renal function. Professeur Pierre Delanaye Université de Liège CHU Sart Tilman BELGIQUE
Measurement and Estimation of renal function Professeur Pierre Delanaye Université de Liège CHU Sart Tilman BELGIQUE 1 2 How to estimate GFR? How to measure GFR? How to estimate GFR? How to measure GFR?
More informationSummary of Recommendation Statements Kidney International Supplements (2013) 3, 5 14; doi: /kisup
http://www.kidney-international.org & 2013 DIGO Summary of Recommendation Statements idney International Supplements (2013) 3, 5 14; doi:10.1038/kisup.2012.77 Chapter 1: Definition and classification of
More informationAcknowledgements. National Kidney Foundation of Connecticut Mark Perazella. Co-PI Slowing the progression of chronic kidney disease to ESRD
A Practical Approach to Chronic Kidney Disease Management for the Primary Care Practioner: A web-site sponsored by the National Kidney Foundation of Connecticut Robert Reilly, M.D. Acknowledgements National
More informationGlomerular Filtration Rate Estimations and Measurements. Pierre Delanaye, MD, PhD University of Liège CHU Sart Tilman BELGIUM
Glomerular Filtration Rate Estimations and Measurements Pierre Delanaye, MD, PhD University of Liège CHU Sart Tilman BELGIUM Summary Estimating GFR (creatinine, egfr, cystatin C) Measuring GFR Summary
More informationIFCC Workshop TF-CKD. Kuala Lumpur November 19, 2012
IFCC Workshop TF-CKD Kuala Lumpur November 19, 2012 Members IFCC TF-CKD Graham JONES Edmund LAMB (UK) David SECCOMBE (Canada) Joe CORESH (USA) Andrew NARVA (USA) Mauro PANTEGHINI (Italy) Joris DELANGHE
More informationASSESSMENT OF A POINT-OF-CARE DEVICE FOR MEASURING CREATININE IN A COMMUNITY SCREENING PROGRAM FOR CHRONIC KIDNEY DISEASE
ASSESSMENT OF A POINT-OF-CARE DEVICE FOR MEASURING CREATININE IN A COMMUNITY SCREENING PROGRAM FOR CHRONIC KIDNEY DISEASE Brooke Ann Spaeth, Anne K Shephard, Mark DS Shephard, Timothy H Mathew ABSTRACT
More informationRenal function vs chemotherapy dosing
Renal function vs chemotherapy dosing Jenny Casanova Senior Clinical Pharmacist Repatriation General Hospital Daw Park 1 Methods of estimating renal function Cockcroft-Gault (1976) C-G using ideal vs actual
More informationGlomerular Filtration Rate. Hui Li, PhD, FCACB, DABCC
Glomerular Filtration Rate Hui Li, PhD, FCACB, DABCC Glomerular Filtration Rate (GFR): Amount of blood that is filtered per unit time through glomeruli. It is a measure of the function of kidneys. The
More informationBritish Columbia is the first
Michael D.D. McNeely, MD, FRCPC, FCACB The estimated glomerular filtration rate: Linchpin of the chronic kidney disease guidelines The standardized reporting of serum creatinine values by BC laboratories
More informationRENAL FUNCTION ASSESSMENT ASSESSMENT OF GLOMERULAR FUNCTION ASSESSMENT OF TUBULAR FUNCTION
Measured GFR (mgfr mgfr) and Estimated t GFR (egfr egfr) R. Mohammadi Biochemist (Ph.D.) Faculty member of Medical Faculty RENAL FUNCTION ASSESSMENT ASSESSMENT OF GLOMERULAR FUNCTION ASSESSMENT OF TUBULAR
More informationComparison of Three Whole Blood Creatinine Methods for Estimation of Glomerular Filtration Rate Before Radiographic Contrast Administration
Clinical Chemistry / Whole Blood Creatinine for egfr Comparison of Three Whole Blood Creatinine Methods for Estimation of Glomerular Filtration Rate Before Radiographic Contrast Administration Nichole
More informationUpdate on HIV-Related Kidney Diseases. Agenda
Update on HIV-Related Kidney Diseases ANDY CHOI THE MEDICAL MANAGEMENT OF HIV/AIDS DECEMBER 15, 2006 Agenda 1. EPIDEMIOLOGY: A) END STAGE RENAL DISEASE (ESRD) B) CHRONIC KIDNEY DISEASE (CKD) 2. HIV-ASSOCIATED
More informationPage 1. Disclosures. Main Points of My Talk. Enlightened Views of Serum Creatinine, egfr, Measured GFR, and the Concept of Clearance
1 Enlightened Views of Serum Creatinine, egfr, Measured GFR, and the Concept of Clearance John Toffaletti, PhD Director of Blood Gas and Clinical Pediatric Laboratories Professor of Pathology Duke University
More informationDevelopment of a reference MSMS method for plasma creatinine
Development of a reference MSMS method for plasma creatinine Asian Pacific Conference of Chromatography & Mass Spectrometry 2010 14 th -16 th January 2010 R Neil Dalton & Charles Turner WellChild Laboratory
More informationComparison of Modified Jaffe s Kinetic Method and Enzymatic Method of Serum Creatinine Estimation for Precision, Linearity and Effect of Interferent
ORIGINAL ARTICLE Comparison of Modified Jaffe s Kinetic Method and Enzymatic Method Comparison of Modified Jaffe s Kinetic Method and Enzymatic Method of Serum Creatinine Estimation for Precision, Linearity
More informationObjectives. Pre-dialysis CKD: The Problem. Pre-dialysis CKD: The Problem. Objectives
The Role of the Primary Physician and the Nephrologist in the Management of Chronic Kidney Disease () By Brian Young, M.D. Assistant Clinical Professor of Medicine David Geffen School of Medicine at UCLA
More informationIs the new Mayo Clinic Quadratic (MCQ) equation useful for the estimation of glomerular filtration rate in type 2 diabetic patients?
Diabetes Care Publish Ahead of Print, published online October 3, 2008 The MCQ equation in DM2 patients Is the new Mayo Clinic Quadratic (MCQ) equation useful for the estimation of glomerular filtration
More informationThe estimation of kidney function with different formulas in overall population
137 G E R I A T R I A 213; 7: 137-141 Akademia Medycyny ARTYKUŁ ORYGINALNY/ORIGINAL PAPER Otrzymano/Submitted: 28.8.213 Zaakceptowano/Accepted: 2.9.213 The estimation of kidney function with different
More informationAssessment of Glomerular Filtration Rate in Health and Disease: A State of the Art Review
Assessment of Glomerular Filtration Rate in Health and Disease: A State of the Art Review AS Levey 1 and LA Inker 1 Acute and chronic kidney diseases affect pharmacokinetics and pharmacodynamics. There
More informationValidation of El-Minia Equation for Estimation of Glomerular Filtration Rate in Different Stages of Chronic Kidney Disease
Kidney Diseases Validation of El-Minia Equation for Estimation of Glomerular Filtration Rate in Different Stages of Chronic Kidney Disease Osama El Minshawy, 1 Eman El-Bassuoni 2 Original Paper 1 Department
More informationFREQUENTLY ASKED QUESTIONS ABOUT GFR ESTIMATES
FREQUENTLY ASKED QUESTIONS ABOUT GFR ESTIMATES TABLE OF CONTENTS MEASUREMENT OF KIDNEY FUNCTION 4 1) What is GFR? 4 2) How is GFR measured? 4 3) What does GFR indicate? 4 4) Why measure GFR as an index
More informationScreening for chronic kidney disease racial implications. Not everybody that pees has healthy kidneys!
Screening for chronic kidney disease racial implications Not everybody that pees has healthy kidneys! Screening for chronic kidney disease racial implications 1) Definition of CKD 2) Why should we screen
More informationValidity of the use of Schwartz formula against creatinine clearance in the assessment of renal functions in children
Validity of the use of Schwartz formula against creatinine clearance in the assessment of renal functions in children *H W Dilanthi 1, G A M Kularatnam 1, S Jayasena 1, E Jasinge 1, D B D L Samaranayake
More informationPrevalence of Chronic Kidney Disease and Its Risk Factors in Gonabad, Iran
KIDNEY DISEASES Prevalence of Chronic Kidney Disease and Its Risk Factors in Gonabad, Iran Masih Naghibi, 1 Mohammad Javad Mojahedi, 2 Lida Jarrahi, 3 Ali Emadzadeh, 4 Reza Ahmadi, 5 Maryam Emadzadeh,
More information(KFTs) IACLD CME, Monday, February 20, Mohammad Reza Bakhtiari, DCLS, PhD
Kidney Function Tests (KFTs) IACLD CME, Monday, February 20, 2012 Mohammad Reza Bakhtiari, DCLS, PhD Iranian Research Organization for Science & Technology (IROST) Tehran, Iran Composition and Properties
More informationS150 KEEP Analytical Methods. American Journal of Kidney Diseases, Vol 55, No 3, Suppl 2, 2010:pp S150-S153
S150 KEEP 2009 Analytical Methods American Journal of Kidney Diseases, Vol 55, No 3, Suppl 2, 2010:pp S150-S153 S151 The Kidney Early Evaluation program (KEEP) is a free, communitybased health screening
More informationEgfr non african american vs african american
Buscar... Egfr non african american vs african american 15-2-2017 Chronic TEENney disease (CKD) is a condition characterized by a gradual loss of TEENney function over time. To read more about TEENney
More informationCharacteristics of factor x so that its clearance = GFR. Such factors that meet these criteria. Renal Tests. Renal Tests
Renal Tests Holly Kramer MD MPH Associate Professor of Public Health Sciences and Medicine Division of Nephrology and Hypertension Loyola University of Chicago Stritch School of Medicine Renal Tests 1.
More informationCan modifications of the MDRD formula improve the estimation of glomerular filtration rate in renal allograft recipients?
Nephrol Dial Transplant (7) 22: 361 3615 doi:1.193/ndt/gfm282 Advance Access publication 22 September 7 Original Article Can modifications of the MDRD formula improve the estimation of glomerular filtration
More informationReference Material Institute for Clinical Chemistry Standards (ReCCS)
Certified Reference Material for Measurement of Glucose, Creatinine, Uric Acid and Urea-N in Human Serum JCCRM Certificate of Analysis Intended use This Certified Reference Material CRM is intended primarily
More informationDepartment of Clinical Pathology, Faculty of Medicine Padjadjaran University-Dr. Hasan Sadikin General Hospital 2
Original Article Comparison of Estimated Glomerular Filtration Rate Mean Value of HARUS 15-30-60, HADI, and ASIAN Fomula Accuracy in Diabetes Mellitus Type 2 Sylvia Rachmayati, 1 Ida Parwati, 1 Abdul Hadi
More informationEvaluation of the Cockroft Gault, Jelliffe and Wright formulae in estimating renal function in elderly cancer patients
Original article Annals of Oncology 15: 291 295, 2004 DOI: 10.1093/annonc/mdh079 Evaluation of the Cockroft Gault, Jelliffe and Wright formulae in estimating renal function in elderly cancer patients G.
More informationSupplemental Table 1. Standardized Serum Creatinine Measurements. Supplemental Table 3. Sensitivity Analyses with Additional Mortality Outcomes.
SUPPLEMENTAL MATERIAL Supplemental Table 1. Standardized Serum Creatinine Measurements Supplemental Table 2. List of ICD 9 and ICD 10 Billing Codes Supplemental Table 3. Sensitivity Analyses with Additional
More informationMDRD vs. CKD-EPI in comparison to
Jalalonmuhali et al. BMC Nephrology (2017) 18:363 DOI 10.1186/s12882-017-0776-2 RESEARCH ARTICLE MDRD vs. CKD-EPI in comparison to 51 Chromium EDTA: a cross sectional study of Malaysian CKD cohort Maisarah
More informationTwo: Chronic kidney disease identified in the claims data. Chapter
Two: Chronic kidney disease identified in the claims data Though leaves are many, the root is one; Through all the lying days of my youth swayed my leaves and flowers in the sun; Now may wither into the
More informationCorrespondence should be addressed to Maisarah Jalalonmuhali;
Hindawi International Journal of Nephrology Volume 2017, Article ID 2901581, 7 pages https://doi.org/10.1155/2017/2901581 Research Article Comparative Performance of Creatinine-Based Estimated Glomerular
More informationArchive of SID. Why Do We Need Chronic Kidney Disease Screening and Which Way to Go? Kidney Diseases. Review. Mitra Mahdavi-Mazdeh
Kidney Diseases Why Do We Need Chronic Kidney Disease Screening and Which Way to Go? Review Mitra Mahdavi-Mazdeh Nephrology Research Center, Tehran University of Medical Sciences, Tehran, Iran Keywords.
More informationLaboratory and Measurement Issues. Greg Miller, PhD Virginia Commonwealth University Richmond, VA
Laboratory and Measurement Issues Greg Miller, PhD Virginia Commonwealth University Richmond, VA Outline Serum/plasma creatinine Serum/plasma cystatin C Urine albumin Urine protein Creatinine standardization
More informationEvaluation of Renal Profile in Liver Cirrhosis Patients: A Clinical Study
Original article: Evaluation of Renal Profile in Liver Cirrhosis Patients: A Clinical Study Mukesh Agarwal Assistant Professor, Department of General Medicine, Teerthanker Mahaveer Medical College & Research
More informationOutline. Outline CHRONIC KIDNEY DISEASE UPDATE: WHAT THE GENERALIST NEEDS TO KNOW 7/23/2013. Question 1: Which of these patients has CKD?
CHRONIC KIDNEY DISEASE UPDATE: WHAT THE GENERALIST NEEDS TO KNOW MICHAEL G. SHLIPAK, MD, MPH CHIEF-GENERAL INTERNAL MEDICINE, SAN FRANCISCO VA MEDICAL CENTER PROFESSOR OF MEDICINE, EPIDEMIOLOGY AND BIOSTATISTICS,
More informationSpecial Challenges and Co-Morbidities
Special Challenges and Co-Morbidities Renal Disease/ Hypertension/ Diabetes in African-Americans M. Keith Rawlings, MD Medical Director Peabody Health Center AIDS Arms, Inc Dallas, TX Chair, Internal Medicine
More informationTitle: High creatinine clearance in critically ill patients with community-acquired acute infectious meningitis
Author's response to reviews Title: High creatinine clearance in critically ill patients with community-acquired acute infectious meningitis Authors: Alexandre Lautrette (alautrette@chu-clermontferrand.fr)
More informationChapter 2: Identification and Care of Patients With CKD
Chapter 2: Identification and Care of Patients With CKD Over half of patients in the Medicare 5% sample (aged 65 and older) had at least one of three diagnosed chronic conditions chronic kidney disease
More informationChronic Kidney Disease: Optimal and Coordinated Management
Chronic Kidney Disease: Optimal and Coordinated Management Michael Copland, MD, FRCPC Presented at University of British Columbia s 42nd Annual Post Graduate Review in Family Medicine Conference, Vancouver,
More informationIntroduction of the CKD-EPI equation to estimate glomerular filtration rate in a Caucasian population
3176 Nephrol Dial Transplant (2011) 26: 3176 3181 doi: 10.1093/ndt/gfr003 Advance Access publication 16 February 2011 Introduction of the CKD-EPI equation to estimate glomerular filtration rate in a Caucasian
More informationTREAT THE KIDNEY TO SAVE THE HEART. Leanna Tyshler, MD Chronic Kidney Disease Medical Advisor Northwest Kidney Centers February 2 nd, 2009
TREAT THE KIDNEY TO SAVE THE HEART Leanna Tyshler, MD Chronic Kidney Disease Medical Advisor Northwest Kidney Centers February 2 nd, 2009 1 ESRD Prevalent Rates in 1996 per million population December
More informationThe Diabetes Kidney Disease Connection Missouri Foundation for Health February 26, 2009
The Diabetes Kidney Disease Connection Missouri Foundation for Health February 26, 2009 Teresa Northcutt, RN BSN Primaris Program Manager, Prevention - CKD MO-09-01-CKD This material was prepared by Primaris,
More informationRenal Function and Associated Laboratory Tests
Renal Function and Associated Laboratory Tests Contents Glomerular Filtration Rate (GFR)... 2 Cockroft-Gault Calculation of Creatinine Clearance... 3 Blood Urea Nitrogen (BUN) to Serum Creatinine (SCr)
More informationOffice Management of Reduced GFR Practical advice for the management of CKD
Office Management of Reduced GFR Practical advice for the management of CKD CKD Online Education CME for Primary Care April 27, 2016 Monica Beaulieu, MD FRCPC MHA CHAIR PROVINCIAL KIDNEY CARE COMMITTEE
More informationOutline. Outline CHRONIC KIDNEY DISEASE UPDATE: WHAT THE GENERALIST NEEDS TO KNOW. Question 1: Which of these patients has CKD?
CHRONIC KIDNEY DISEASE UPDATE: WHAT THE GENERALIST NEEDS TO KNOW MICHAEL G. SHLIPAK, MD, MPH CHIEF-GENERAL INTERNAL MEDICINE, SAN FRANCISCO VA MEDICAL CENTER PROFESSOR OF MEDICINE, EPIDEMIOLOGY AND BIOSTATISTICS,
More informationUSRDS UNITED STATES RENAL DATA SYSTEM
USRDS UNITED STATES RENAL DATA SYSTEM Chapter 2: Identification and Care of Patients With CKD Over half of patients from the Medicare 5 percent sample have either a diagnosis of chronic kidney disease
More informationIntroduction to Clinical Diagnosis Nephrology
Introduction to Clinical Diagnosis Nephrology I. David Weiner, M.D. C. Craig and Audrae Tisher Chair in Nephrology Professor of Medicine and Physiology and Functional Genomics University of Florida College
More informationOutline. Outline 10/14/2014 CHRONIC KIDNEY DISEASE UPDATE: WHAT THE GENERALIST NEEDS TO KNOW. Question 1: Which of these patients has CKD?
CHRONIC KIDNEY DISEASE UPDATE: WHAT THE GENERALIST NEEDS TO KNOW MICHAEL G. SHLIPAK, MD, MPH CHIEF-GENERAL INTERNAL MEDICINE, SAN FRANCISCO VA MEDICAL CENTER PROFESSOR OF MEDICINE, EPIDEMIOLOGY AND BIOSTATISTICS,
More informationChapter 2: Identification and Care of Patients With CKD
Chapter 2: Identification and Care of Patients With Over half of patients from the Medicare 5% sample (restricted to age 65 and older) have a diagnosis of chronic kidney disease (), cardiovascular disease,
More informationHUGE EQUATION ACCURACY FOR SCREENING CHRONIC KIDNEY DISEASE: A PROSPECTIVE STUDY
Journal of Aging Research & Clinical Practice Volume 6, 2017 J Aging Res Clin Practice 2017;inpress Published online in press HUGE EQUATION ACCURACY FOR SCREENING CHRONIC KIDNEY DISEASE: A PROSPECTIVE
More informationElevation of Serum Creatinine: When to Screen, When to Refer. Bruce F. Culleton, MD, FRCPC; and Jolanta Karpinski, MD, FRCPC
Elevation of Serum Creatinine: When to Screen, When to Refer Bruce F. Culleton, MD, FRCPC; and Jolanta Karpinski, MD, FRCPC Presented at the University of Calgary s CME and Professional Development 2006-2007
More informationGovernment Vellore Medical College, Vellore), Department of Biochemistry, Govt. Kilpauk Medical College, Chennai-10
International Journal of Clinical Chemistry and Laboratory Medicine (IJCCLM) Volume 3, Issue 3, 2017, PP 23-32 ISSN No. (Online) 2455-7153 DOI: http://dx.doi.org/10.20431/2455-7153.0303005 www.arcjournals.org
More informationCase Studies: Renal and Urologic Impairments Workshop
Case Studies: Renal and Urologic Impairments Workshop Justine Lee, MD, DBIM New York Life Insurance Co. Gina Guzman, MD, DBIM, FALU, ALMI Munich Re AAIM Triennial October, 2012 The Company You Keep 1 Case
More informationCystatin C (serum, plasma, urine)
Cystatin C (serum, plasma, urine) 1 Name and description of analyte 1.1 Name of analyte Cystatin C (serum, plasma and urine) 1.2 Alternative names Cystatin 3, post-gamma-globulin, neuroendocrine basic
More informationLife Science Journal 2014;11(10)
Performance of CKD-EPI versus MDRD among Diabetic Egyptians Khaled Abou-Seif, Yahya Makkeyah, Maha Behairy and Mohamed Mostafa Ali Internal Medicine & Nephrology Department, Ain Shams University Mahabehairy80@gmail.com
More informationChapter 2: Identification and Care of Patients with CKD
Chapter 2: Identification and Care of Patients with CKD Over half of patients in the Medicare 5% sample (aged 65 and older) had at least one of three diagnosed chronic conditions chronic kidney disease
More informationOriginal Article. Saudi Journal of Kidney Diseases and Transplantation
Saudi J Kidney Dis Transpl 2014;25(5):1004-1010 2014 Saudi Center for Organ Transplantation Saudi Journal of Kidney Diseases and Transplantation Original Article Comparison of the Performance of the Updated,
More informationCKD EVIDENCE TABLES - ALL CHAPTERS
CKD EVIDENCE TABLES - ALL CHAPTERS CHAPTER 3-CKD GUIDELINE CONTENTS: 3.1. INVESTIGATION OF CKD 3.2. FACTORS AFFECTING THE BIOLOGICAL AND ANALYTICAL VARIABILITY OF GFR ESTIMATED FROM MEASUREMENT OF SERUM
More informationComparison of Serum Cystatin C and Creatinine Levels to Evaluate Early Renal Function after Kidney Transplantation
IJMS Vol 34, No 2, June 2009 Original Article Comparison of Serum Cystatin C and Creatinine Levels to Evaluate Early Renal Function after Kidney Transplantation Reza Hekmat, Hamid Eshraghi Abstract Background:
More informationCYSTATIN C. An Improved Way To Screen For Chronic Kidney Disease INNOVATIONS IN CLINICAL DIAGNOSTICS
CYSTATIN C An Improved Way To Screen For Chronic Kidney Disease INNOVATIONS IN CLINICAL DIAGNOSTICS About Diazyme Diazyme Laboratories, Inc., an affiliate of General Atomics, is located in Poway, California.
More informationAKI: definitions, detection & pitfalls. Jon Murray
AKI: definitions, detection & pitfalls Jon Murray Previous conventional definition Acute renal failure (ARF) An abrupt and sustained decline in renal excretory function due to a reduction in glomerular
More informationGFR prediction using the MDRD and Cockcroft and Gault equations in patients with end-stage renal disease
Nephrol Dial Transplant (2005) 20: 2394 2401 doi:10.1093/ndt/gfi076 Advance Access publication 23 August 2005 Original Article GFR prediction using the MDRD and Cockcroft and Gault equations in patients
More informationINDEX WORDS: Awareness; chronic kidney disease; Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI); estimated glomerular filtration rate.
KEEP 2010 Comparison of CKD Awareness in a Screening Population Using the Modification of Diet in Renal Disease (MDRD) Study and CKD Epidemiology Collaboration (CKD-EPI) Equations Manjula Kurella Tamura,
More informationFiltration and Reabsorption Amount Filter/d
Renal Physiology 2011 Lisa M. Harrison-Bernard, PhD Contact me at lharris@lsuhsc.edu Renal Physiology Lecture 3 Renal Clearance and Glomerular Filtration Filtration and Reabsorption Amount Filter/d Amount
More informationIs CKD prevalence of 10-13% in Europe, US and China a realistic number or is there overdiagnosis of CKD? Marc E De Broe.
Is CKD prevalence of 10-13% in Europe, US and China a realistic number or is there overdiagnosis of CKD? Marc E De Broe November 2016 An example of partnership Maremar Maladies rénales au Maroc CKD IN
More informationALLHAT RENAL DISEASE OUTCOMES IN HYPERTENSIVE PATIENTS STRATIFIED INTO 4 GROUPS BY BASELINE GLOMERULAR FILTRATION RATE (GFR)
1 RENAL DISEASE OUTCOMES IN HYPERTENSIVE PATIENTS STRATIFIED INTO 4 GROUPS BY BASELINE GLOMERULAR FILTRATION RATE (GFR) 6 / 5 / 1006-1 2 Introduction Hypertension is the second most common cause of end-stage
More informationImpact of age on glomerular filtration estimates
Nephrol Dial Transplant (2009) 24: 97 103 doi: 10.1093/ndt/gfn473 Advance Access publication 4 September 2008 Original Article Impact of age on glomerular filtration estimates Pierre Douville 1, Ariane
More informationHarmonization of Clinical Laboratory Results is Essential for Quality Patient Care
Harmonization of Clinical Laboratory Results is Essential for Quality Patient Care Greg Miller, PhD Virginia Commonwealth University Richmond, VA Presented at the National Association of Chronic Disease
More informationRoutine serum creatinine measurements: how well do we perform?
Hoste et al. BMC Nephrology (2015) 16:21 DOI 10.1186/s12882-015-0012-x RESEARCH ARTICLE Routine serum creatinine measurements: how well do we perform? Liesbeth Hoste 1, Kathleen Deiteren 2, Hans Pottel
More informationHHS Public Access Author manuscript Am J Kidney Dis. Author manuscript; available in PMC 2017 July 05.
HHS Public Access Author manuscript Published in final edited form as: Am J Kidney Dis. 2017 March ; 69(3): 482 484. doi:10.1053/j.ajkd.2016.10.021. Performance of the Chronic Kidney Disease Epidemiology
More informationEstimation of Serum Creatinine, Urine Creatinine and Creatinine Clearance. BCH472 [Practical] 1
Estimation of Serum Creatinine, Urine Creatinine and Creatinine Clearance BCH472 [Practical] 1 -Kidney functions: - The kidneys serve three essential functions: 1. They function as filters, removing metabolic
More informationThe relation between estimated glomerular filtration rate and proteinuria in Okayama Prefecture, Japan
Environ Health Prev Med (2011) 16:191 195 DOI 10.1007/s12199-010-0183-9 SHORT COMMUNICATION The relation between estimated glomerular filtration rate and proteinuria in Okayama Prefecture, Japan Nobuyuki
More informationFrom Department of Medicine, David Geffen School of Medicine at UCLA.
FROM ISHIB 2009 THE PROS AND CONS OF STAGING CHRONIC KIDNEY DISEASE Background and Objectives: In 2002 the National Kidney Foundation Kidney Disease Outcomes Quality Initiative presented a new definition
More informationRenal Disease and PK/PD. Anjay Rastogi MD PhD Division of Nephrology
Renal Disease and PK/PD Anjay Rastogi MD PhD Division of Nephrology Drugs and Kidneys Kidney is one of the major organ of drug elimination from the human body Renal disease and dialysis alters the pharmacokinetics
More informationOnline clinical pathway for chronic kidney disease (CKD) in primary care. February 27, 2015 Dr. Kerry McBrien University of Calgary
Online clinical pathway for chronic kidney disease (CKD) in primary care February 27, 2015 Dr. Kerry McBrien University of Calgary FACULTY/PRESENTER DISCLOSURE Faculty: Kerry McBrien Relationships with
More informationImportant clinical and laboratory correlates of glomerular filtration rate in sickle cell anemia
Original Article Important clinical and laboratory correlates of glomerular filtration rate in sickle cell anemia AJ Madu, A Ubesie 1, S Ocheni, J Chinawa 1, KA Madu 2, OG Ibegbulam, C Nlemadim 3, A Eze
More informationFrom the 1 Department of Transplantation, Mayo Clinic, Jacksonville, FL; 2 Baylor Regional Transplant Institute, Dallas, TX; 3 Division of
Estimation of Glomerular Filtration Rates Before and After Orthotopic Liver Transplantation: Evaluation of Current Equations Thomas A. Gonwa, 1 Linda Jennings, 2 Martin L. Mai, 1 Paul C. Stark, 3 Andrew
More informationPLEASE SCROLL DOWN FOR ARTICLE
This article was downloaded by:[university of Milan] On: 2 July 2008 Access Details: [subscription number 787714793] Publisher: Informa Healthcare Informa Ltd Registered in England and Wales Registered
More information