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Abstract
Diabetic patients are often affected by comorbid conditions that influence clinical outcome. Taking care of diabetic peritoneal dialysis (PD) patients is a challenge for nephrologists, not only because these patients have more complications and comorbidities, but also because of their difficulties in maintaining glycemic control with the use of current glucose-containing dialysis solutions. In addition, the increased transport of small molecules and proteins by the peritoneal membrane in diabetic patients adds the further problems of ultrafiltration deficit and malnutrition. The present article reviews pertinent evidence toward establishing the best strategy for the care of diabetic PD patients. With better glycemic control, improved nutrition, improved fluid balance, and optimal preservation of residual renal function, there is hope for improving the survival of diabetic PD patients.
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Affiliation(s)
- Chiu-Ching Huang
- Division of Nephrology, Department of Medicine, China Medical University Hospital, Taichung, Taiwan
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Wu MS, Lin CL, Chang CT, Wu CH, Huang JY, Yang CW. Improvement in Clinical Outcome by Early Nephrology Referral in Type Ii Diabetics on Maintenance Peritoneal Dialysis. Perit Dial Int 2020. [DOI: 10.1177/089686080302300105] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
← Objectives To evaluate the influence of early nephrology referral on clinical outcome in type II diabetes mellitus patients on maintenance peritoneal dialysis (PD). ← Design This is a retrospective study in a single University Hospital in Taiwan. ← Patients This study analyzed the type II diabetic patients entering our PD program from February 1988 to June 2000. Patients that were presented to a nephrologist more than 6 months before starting dialysis were defined as early referrals (ER). Patients were considered late referrals (LR) if they were transferred to the nephrology department within 6 months before initial dialysis. ← Main Outcome Measures Patient survival and technique survival curves were derived from Kaplan–Meier analysis and were compared using the Cox–Mantel log rank test. Covariates were analyzed with Cox proportional hazards model. ← Results 52 type II diabetic patients were enrolled in this study: 16 in the ER group and 36 in the LR group. Patient survival was better in the ER group than in the LR group {relative risks [exp(coef)] 0.42; 95% confidence interval 0.152 – 0.666; p < 0.05}. The improved survival in the ER group was independent of age at dialysis, good glycemic control, and residual renal function, as indicated in the multivariate analysis with stepwise regression by Cox proportional hazards model. The ER group was also associated with better technique survival. ← Conclusions These results suggest that early nephrology referral before initiating dialysis is associated with improved long-term clinical outcome in type II diabetics on maintenance PD.
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Affiliation(s)
- Mai-Szu Wu
- Department of Nephrology, Chang-Gung Memorial Hospital, Taipei, Taiwan
| | - Chun-Liang Lin
- Department of Nephrology, Chang-Gung Memorial Hospital, Taipei, Taiwan
| | - Chiz-Tzung Chang
- Department of Nephrology, Chang-Gung Memorial Hospital, Taipei, Taiwan
| | - Ching-Herng Wu
- Department of Nephrology, Chang-Gung Memorial Hospital, Taipei, Taiwan
| | - Jeng-Yi Huang
- Department of Nephrology, Chang-Gung Memorial Hospital, Taipei, Taiwan
| | - Chih-Wei Yang
- Department of Nephrology, Chang-Gung Memorial Hospital, Taipei, Taiwan
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Lo C, Toyama T, Wang Y, Lin J, Hirakawa Y, Jun M, Cass A, Hawley CM, Pilmore H, Badve SV, Perkovic V, Zoungas S. Insulin and glucose-lowering agents for treating people with diabetes and chronic kidney disease. Cochrane Database Syst Rev 2018; 9:CD011798. [PMID: 30246878 PMCID: PMC6513625 DOI: 10.1002/14651858.cd011798.pub2] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Diabetes is the commonest cause of chronic kidney disease (CKD). Both conditions commonly co-exist. Glucometabolic changes and concurrent dialysis in diabetes and CKD make glucose-lowering challenging, increasing the risk of hypoglycaemia. Glucose-lowering agents have been mainly studied in people with near-normal kidney function. It is important to characterise existing knowledge of glucose-lowering agents in CKD to guide treatment. OBJECTIVES To examine the efficacy and safety of insulin and other pharmacological interventions for lowering glucose levels in people with diabetes and CKD. SEARCH METHODS We searched the Cochrane Kidney and Transplant Register of Studies up to 12 February 2018 through contact with the Information Specialist using search terms relevant to this review. Studies in the Register are identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov. SELECTION CRITERIA All randomised controlled trials (RCTs) and quasi-RCTs looking at head-to-head comparisons of active regimens of glucose-lowering therapy or active regimen compared with placebo/standard care in people with diabetes and CKD (estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m2) were eligible. DATA COLLECTION AND ANALYSIS Four authors independently assessed study eligibility, risk of bias, and quality of data and performed data extraction. Continuous outcomes were expressed as post-treatment mean differences (MD). Adverse events were expressed as post-treatment absolute risk differences (RD). Dichotomous clinical outcomes were presented as risk ratios (RR) with 95% confidence intervals (CI). MAIN RESULTS Forty-four studies (128 records, 13,036 participants) were included. Nine studies compared sodium glucose co-transporter-2 (SGLT2) inhibitors to placebo; 13 studies compared dipeptidyl peptidase-4 (DPP-4) inhibitors to placebo; 2 studies compared glucagon-like peptide-1 (GLP-1) agonists to placebo; 8 studies compared glitazones to no glitazone treatment; 1 study compared glinide to no glinide treatment; and 4 studies compared different types, doses or modes of administration of insulin. In addition, 2 studies compared sitagliptin to glipizide; and 1 study compared each of sitagliptin to insulin, glitazars to pioglitazone, vildagliptin to sitagliptin, linagliptin to voglibose, and albiglutide to sitagliptin. Most studies had a high risk of bias due to funding and attrition bias, and an unclear risk of detection bias.Compared to placebo, SGLT2 inhibitors probably reduce HbA1c (7 studies, 1092 participants: MD -0.29%, -0.38 to -0.19 (-3.2 mmol/mol, -4.2 to -2.2); I2 = 0%), fasting blood glucose (FBG) (5 studies, 855 participants: MD -0.48 mmol/L, -0.78 to -0.19; I2 = 0%), systolic blood pressure (BP) (7 studies, 1198 participants: MD -4.68 mmHg, -6.69 to -2.68; I2 = 40%), diastolic BP (6 studies, 1142 participants: MD -1.72 mmHg, -2.77 to -0.66; I2 = 0%), heart failure (3 studies, 2519 participants: RR 0.59, 0.41 to 0.87; I2 = 0%), and hyperkalaemia (4 studies, 2788 participants: RR 0.58, 0.42 to 0.81; I2 = 0%); but probably increase genital infections (7 studies, 3086 participants: RR 2.50, 1.52 to 4.11; I2 = 0%), and creatinine (4 studies, 848 participants: MD 3.82 μmol/L, 1.45 to 6.19; I2 = 16%) (all effects of moderate certainty evidence). SGLT2 inhibitors may reduce weight (5 studies, 1029 participants: MD -1.41 kg, -1.8 to -1.02; I2 = 28%) and albuminuria (MD -8.14 mg/mmol creatinine, -14.51 to -1.77; I2 = 11%; low certainty evidence). SGLT2 inhibitors may have little or no effect on the risk of cardiovascular death, hypoglycaemia, acute kidney injury (AKI), and urinary tract infection (low certainty evidence). It is uncertain whether SGLT2 inhibitors have any effect on death, end-stage kidney disease (ESKD), hypovolaemia, fractures, diabetic ketoacidosis, or discontinuation due to adverse effects (very low certainty evidence).Compared to placebo, DPP-4 inhibitors may reduce HbA1c (7 studies, 867 participants: MD -0.62%, -0.85 to -0.39 (-6.8 mmol/mol, -9.3 to -4.3); I2 = 59%) but may have little or no effect on FBG (low certainty evidence). DPP-4 inhibitors probably have little or no effect on cardiovascular death (2 studies, 5897 participants: RR 0.93, 0.77 to 1.11; I2 = 0%) and weight (2 studies, 210 participants: MD 0.16 kg, -0.58 to 0.90; I2 = 29%; moderate certainty evidence). Compared to placebo, DPP-4 inhibitors may have little or no effect on heart failure, upper respiratory tract infections, and liver impairment (low certainty evidence). Compared to placebo, it is uncertain whether DPP-4 inhibitors have any effect on eGFR, hypoglycaemia, pancreatitis, pancreatic cancer, or discontinuation due to adverse effects (very low certainty evidence).Compared to placebo, GLP-1 agonists probably reduce HbA1c (7 studies, 867 participants: MD -0.53%, -1.01 to -0.06 (-5.8 mmol/mol, -11.0 to -0.7); I2 = 41%; moderate certainty evidence) and may reduce weight (low certainty evidence). GLP-1 agonists may have little or no effect on eGFR, hypoglycaemia, or discontinuation due to adverse effects (low certainty evidence). It is uncertain whether GLP-1 agonists reduce FBG, increase gastrointestinal symptoms, or affect the risk of pancreatitis (very low certainty evidence).Compared to placebo, it is uncertain whether glitazones have any effect on HbA1c, FBG, death, weight, and risk of hypoglycaemia (very low certainty evidence).Compared to glipizide, sitagliptin probably reduces hypoglycaemia (2 studies, 551 participants: RR 0.40, 0.23 to 0.69; I2 = 0%; moderate certainty evidence). Compared to glipizide, sitagliptin may have had little or no effect on HbA1c, FBG, weight, and eGFR (low certainty evidence). Compared to glipizide, it is uncertain if sitagliptin has any effect on death or discontinuation due to adverse effects (very low certainty).For types, dosages or modes of administration of insulin and other head-to-head comparisons only individual studies were available so no conclusions could be made. AUTHORS' CONCLUSIONS Evidence concerning the efficacy and safety of glucose-lowering agents in diabetes and CKD is limited. SGLT2 inhibitors and GLP-1 agonists are probably efficacious for glucose-lowering and DPP-4 inhibitors may be efficacious for glucose-lowering. Additionally, SGLT2 inhibitors probably reduce BP, heart failure, and hyperkalaemia but increase genital infections, and slightly increase creatinine. The safety profile for GLP-1 agonists is uncertain. No further conclusions could be made for the other classes of glucose-lowering agents including insulin. More high quality studies are required to help guide therapeutic choice for glucose-lowering in diabetes and CKD.
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Affiliation(s)
- Clement Lo
- Monash UniversityMonash Centre for Health Research and Implementation, School of Public Health and Preventive MedicineClaytonVICAustralia
- Monash HealthDiabetes and Vascular Medicine UnitClaytonVICAustralia
- Monash UniversityDivision of Metabolism, Ageing and Genomics, School of Public Health and Preventive MedicinePrahanVICAustralia
| | - Tadashi Toyama
- The George Institute for Global Health, UNSW SydneyRenal and Metabolic DivisionNewtownNSWAustralia2050
- Kanazawa University HospitalDivision of NephrologyKanazawaJapan
| | - Ying Wang
- The George Institute for Global Health, UNSW SydneyRenal and Metabolic DivisionNewtownNSWAustralia2050
| | - Jin Lin
- Beijing Friendship Hospital, Capital Medical UniversityDepartment of Critical Care Medicine95 Yong‐An Road, Xuan Wu DistrictBeijingChina100050
| | - Yoichiro Hirakawa
- The George Institute for Global Health, UNSW SydneyProfessorial UnitNewtownNSWAustralia
| | - Min Jun
- The George Institute for Global Health, UNSW SydneyRenal and Metabolic DivisionNewtownNSWAustralia2050
| | - Alan Cass
- Menzies School of Health ResearchPO Box 41096CasuarinaNTAustralia0811
| | - Carmel M Hawley
- Princess Alexandra HospitalDepartment of NephrologyIpswich RoadWoolloongabbaQLDAustralia4102
| | - Helen Pilmore
- Auckland HospitalDepartment of Renal MedicinePark RoadGraftonAucklandNew Zealand
- University of AucklandDepartment of MedicineGraftonNew Zealand
| | - Sunil V Badve
- St George HospitalDepartment of Renal MedicineKogarahNSWAustralia
| | - Vlado Perkovic
- The George Institute for Global Health, UNSW SydneyRenal and Metabolic DivisionNewtownNSWAustralia2050
| | - Sophia Zoungas
- Monash HealthDiabetes and Vascular Medicine UnitClaytonVICAustralia
- Monash UniversityDivision of Metabolism, Ageing and Genomics, School of Public Health and Preventive MedicinePrahanVICAustralia
- The George Institute for Global Health, UNSW SydneyProfessorial UnitNewtownNSWAustralia
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Dozio E, Corradi V, Proglio M, Vianello E, Menicanti L, Rigolini R, Caprara C, de Cal M, Corsi Romanelli MM, Ronco C. Usefulness of glycated albumin as a biomarker for glucose control and prognostic factor in chronic kidney disease patients on dialysis (CKD-G5D). Diabetes Res Clin Pract 2018; 140:9-17. [PMID: 29596954 DOI: 10.1016/j.diabres.2018.03.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 03/08/2018] [Indexed: 12/17/2022]
Abstract
In chronic kidney disease patients on dialysis (CKD-G5D) accurate assessment of glycemic control is vital to improve their outcome and survival. The best glycemic marker for glucose control in these patients is still debated because several clinical and pharmacological factors may affect the ability of the available biomarkers to reflect the patient's glycemic status properly. This review discusses the role of glycated albumin (GA) both as a biomarker for glucose control and as a prognostic factor in CKD-G5D; it also looks at the pros and cons of GA in comparison to the other markers and its usefulness in hemodialysis and peritoneal dialysis.
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Affiliation(s)
- Elena Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy.
| | - Valentina Corradi
- Department of Nephrology, Dialysis & Transplantation, San Bortolo Hospital, 36100 Vicenza, Italy; International Renal Research Institute Vicenza (IRRIV), San Bortolo Hospital, 36100 Vicenza, Italy
| | - Marta Proglio
- Department of Nephrology, Dialysis & Transplantation, San Bortolo Hospital, 36100 Vicenza, Italy
| | - Elena Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy
| | - Lorenzo Menicanti
- Department of Cardiac Surgery, I.R.C.C.S. Policlinico San Donato, 20097 San Donato Milanese, Milan, Italy
| | - Roberta Rigolini
- Service of Laboratory Medicine1-Clinical Pathology, I.R.C.C.S. Policlinico San Donato, 20097 San Donato Milanese, Milan, Italy
| | - Carlotta Caprara
- International Renal Research Institute Vicenza (IRRIV), San Bortolo Hospital, 36100 Vicenza, Italy
| | - Massimo de Cal
- Department of Nephrology, Dialysis & Transplantation, San Bortolo Hospital, 36100 Vicenza, Italy; International Renal Research Institute Vicenza (IRRIV), San Bortolo Hospital, 36100 Vicenza, Italy
| | - Massimiliano M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy; Service of Laboratory Medicine1-Clinical Pathology, I.R.C.C.S. Policlinico San Donato, 20097 San Donato Milanese, Milan, Italy
| | - Claudio Ronco
- Department of Nephrology, Dialysis & Transplantation, San Bortolo Hospital, 36100 Vicenza, Italy; International Renal Research Institute Vicenza (IRRIV), San Bortolo Hospital, 36100 Vicenza, Italy
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Rhee JJ, Zheng Y, Montez-Rath ME, Chang TI, Winkelmayer WC. Associations of Glycemic Control With Cardiovascular Outcomes Among US Hemodialysis Patients With Diabetes Mellitus. J Am Heart Assoc 2017; 6:JAHA.117.005581. [PMID: 28592463 PMCID: PMC5669174 DOI: 10.1161/jaha.117.005581] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background There is a lack of data on the relationship between glycemic control and cardiovascular end points in hemodialysis patients with diabetes mellitus. Methods and Results We included adult Medicare‐insured patients with diabetes mellitus who initiated in‐center hemodialysis treatment from 2006 to 2008 and survived for >90 days. Quarterly mean time‐averaged glycated hemoglobin (HbA1c) values were categorized into <48 mmol/mol (<6.5%) (reference), 48 to <58 mmol/mol (6.5% to <7.5%), 58 to <69 mmol/mol (7.5% to <8.5%), and ≥69 mmol/mol (≥8.5%). Medicare claims were used to identify outcomes of cardiovascular mortality, nonfatal myocardial infarction (MI), fatal or nonfatal MI, stroke, and peripheral arterial disease. We used Cox models as a function of time‐varying exposure to estimate multivariable adjusted hazard ratios and 95%CI for the associations between HbA1c and time to study outcomes in a cohort of 16 387 eligible patients. Patients with HbA1c 58 to <69 mmol/mol (7.5% to <8.5%) and ≥69 mmol/mol (≥8.5%) had 16% (CI, 2%, 32%) and 18% (CI, 1%, 37%) higher rates of cardiovascular mortality (P‐trend=0.01) and 16% (CI, 1%, 33%) and 15% (CI, 1%, 32%) higher rates of nonfatal MI (P‐trend=0.05), respectively, compared with those in the reference group. Patients with HbA1c ≥69 mmol/mol (≥8.5%) had a 20% (CI, 2%, 41%) higher rate of fatal or nonfatal MI (P‐trend=0.02), compared with those in the reference group. HbA1c was not associated with stroke, peripheral arterial disease, or all‐cause mortality. Conclusions Higher HbA1c levels were significantly associated with higher rates of cardiovascular mortality and MI but not with stroke, peripheral arterial disease, or all‐cause mortality in this large cohort of hemodialysis patients with diabetes mellitus.
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Affiliation(s)
- Jinnie J Rhee
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Yuanchao Zheng
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Maria E Montez-Rath
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Tara I Chang
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Wolfgang C Winkelmayer
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Heath, Baylor College of Medicine, Houston, TX
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Rajput R, Sinha B, Majumdar S, Shunmugavelu M, Bajaj S. Consensus statement on insulin therapy in chronic kidney disease. Diabetes Res Clin Pract 2017; 127:10-20. [PMID: 28315574 DOI: 10.1016/j.diabres.2017.02.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 02/16/2017] [Indexed: 01/26/2023]
Abstract
INTRODUCTION Diabetes mellitus (DM) is one of the leading causes of chronic kidney disease (CKD) which eventually leads to insulin resistance and decreased insulin degradation. In patients with diabetic kidney disease (DKD), the overall insulin requirement declines which necessitates the reassessment for individualization, adjustment and titration of insulin doses depending on the severity of kidney disease. OBJECTIVE To provide simple and easily implementable guidelines to primary care physicians on appropriate insulin dosing and titration of various insulin regimens in patients with DKD. METHODS Each insulin regimen (basal, prandial, premix and basal-bolus) was presented and evaluated for dosing and titration based on data from approved medical literatures on chronic kidney disease. These evaluations were then factored into the national context based on the expert committee representatives' and key opinion leaders' clinical experience and common therapeutic practices followed in India. RESULTS Recommendations based on dosing and titration of insulins has been developed. Moreover, the consensus group also recommended the strategy for dose estimation of insulin, optimal glycaemic targets and self-monitoring in patients with DKD. CONCLUSION The consensus based recommendations will be a useful reference tool for health care practitioners to initiate, optimise and intensify insulin therapy in patients with DKD.
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Affiliation(s)
| | | | - Sujoy Majumdar
- G D Diabetes Institute & Peerless Hospital Kolkata, India
| | - M Shunmugavelu
- Trichy Diabetes Speciality Centre (P) Ltd, Trichy, Tamil Nadu, India
| | - Sarita Bajaj
- Dept of Medicine, MLN Medical College, Allahabad, India
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Chowdhury TA, Srirathan D, Abraham G, Oei EL, Fan SL, McCafferty K, Yaqoob MM. Could metformin be used in patients with diabetes and advanced chronic kidney disease? Diabetes Obes Metab 2017; 19:156-161. [PMID: 27690331 DOI: 10.1111/dom.12799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/26/2016] [Accepted: 09/26/2016] [Indexed: 12/26/2022]
Abstract
Diabetes is an important cause of end stage renal failure worldwide. As renal impairment progresses, managing hyperglycaemia can prove increasingly challenging, as many medications are contra-indicated in moderate to severe renal impairment. Whilst evidence for tight glycaemic control reducing progression to renal failure in patients with established renal disease is limited, poor glycaemic control is not desirable, and is likely to lead to progressive complications. Metformin is a first-line therapy in patients with Type 2 diabetes, as it appears to be effective in reducing diabetes related end points and mortality in overweight patients. Cessation of metformin in patients with progressive renal disease may not only lead to deterioration in glucose control, but also to loss of protection from cardiovascular disease in a cohort of patients at particularly high risk. We advocate the need for further study to determine the role of metformin in patients with severe renal disease (chronic kidney disease stage 4-5), as well as patients on dialysis, or pre-/peri-renal transplantation. We explore possible roles of metformin in these circumstances, and suggest potential key areas for further study.
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Affiliation(s)
- Tahseen A Chowdhury
- Department of Diabetes, Barts and the London School of Medicine and Dentistry, The Royal London Hospital, London, UK
| | - Danushan Srirathan
- Department of Diabetes, Barts and the London School of Medicine and Dentistry, The Royal London Hospital, London, UK
| | - Georgi Abraham
- Department of Nephrology, Pondicherry Institute of Medical Sciences, Madras Medical Mission, Chennai, India
| | - Elizabeth L Oei
- Department of Nephrology, Singapore General Hospital, Singapore, Singapore
| | - Stanley L Fan
- Department of Nephrology, Barts and the London School of Medicine and Dentistry, The Royal London Hospital, London, UK
| | - Kieran McCafferty
- Department of Nephrology, Barts and the London School of Medicine and Dentistry, The Royal London Hospital, London, UK
| | - M Magdi Yaqoob
- Department of Nephrology, Barts and the London School of Medicine and Dentistry, The Royal London Hospital, London, UK
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Sun JT, Liu Y, Lu L, Liu HJ, Shen WF, Yang K, Zhang RY. Diabetes-Invoked High-Density Lipoprotein and Its Association With Coronary Artery Disease in Patients With Type 2 Diabetes Mellitus. Am J Cardiol 2016; 118:1674-1679. [PMID: 27666175 DOI: 10.1016/j.amjcard.2016.08.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 08/19/2016] [Accepted: 08/19/2016] [Indexed: 12/31/2022]
Abstract
Although high-density lipoprotein (HDL) can exhibit anti-inflammatory properties, these potent activities can become deficient and even transform into proinflammatory effects under various pathophysiological states. We investigated the effect of diabetic HDL on the inflammatory response in human monocytes and its relation to the existence of coronary artery disease (CAD) in patients with type 2 diabetes mellitus (DM). HDL was isolated from DM patients with (n = 61) or without (n = 31) CAD (diameter stenosis ≥50%) and healthy controls (n = 40). Human peripheral blood mononuclear cells were incubated with HDL and the proinflammatory ability of HDL was determined by tumor necrosis factor-α (TNF-α) secretion in peripheral blood mononuclear cells. Secretion of TNF-α in human monocytes in response to diabetic HDL was significantly increased compared with that of the control HDL. Of note, HDL from DM patients with CAD stimulated the release of TNF-α in monocytes to a greater extent than that of HDL from those without CAD. Multiple linear regression analysis showed that the proinflammatory ability of HDL was independently associated with diabetes duration, hemoglobin A1c, serum levels of high-sensitivity C-reactive protein (hs-CRP) and reduced glomerular filtration rate (GFR). Furthermore, the proinflammatory ability of HDL was a significant predictor for the presence of CAD in patients with DM.
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9
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Hayashi A, Takano K, Masaki T, Yoshino S, Ogawa A, Shichiri M. Distinct biomarker roles for HbA 1c and glycated albumin in patients with type 2 diabetes on hemodialysis. J Diabetes Complications 2016; 30:1494-1499. [PMID: 27614726 DOI: 10.1016/j.jdiacomp.2016.08.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/15/2016] [Accepted: 08/22/2016] [Indexed: 10/21/2022]
Abstract
AIMS HbA1c and glycated albumin (GA) are used to monitor glycemia, but their accuracy to represent glycemic profiles in hemodialysis remains controversial. METHODS Continuous glucose monitoring in 97 patients with type 2 diabetes (41 on hemodialysis [HD] and 56 without nephropathy) was analyzed to evaluate whether HbA1c and/or GA serve as appropriate glycemic profile markers. RESULTS The average glucose significantly correlated with HbA1c in both HD group and group without nephropathy (r=0.59, P<0.0001; r=0.40, P<0.005). The slopes of linear regression lines were statistically indistinguishable (F=0.30, P=0.744), while the y-intercepts were significantly different (F=57.86, P<0.0001). GA showed strong correlation with the glycemic standard deviation (r=0.68, P<0.0001), and with the average glucose (r=0.42, P<0.001). Least square analysis revealed that only HbA1c, but not GA, was significantly associated with the average glucose (F=10.20, P<0.0005; F=0.38, P=0.5427), while only GA was significantly associated with the glycemic variability in HD group. CONCLUSIONS In HD participants, HbA1c correlates with the average glucose more than GA, but underestimates it, and a correction formula of HbA1c can be developed as an appreciable marker. GA value itself reflects the average glucose, but less accurately than HbA1c, while it could serve as an indicator for hyperglycemia/hypoglycemia excursion.
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Affiliation(s)
- Akinori Hayashi
- Department of Endocrinology, Diabetes and Metabolism, Kitasato University School of Medicine, Kanagawa, Japan.
| | - Koji Takano
- Department of Endocrinology, Diabetes and Metabolism, Kitasato University School of Medicine, Kanagawa, Japan
| | - Tsuguto Masaki
- Department of Endocrinology, Diabetes and Metabolism, Kitasato University School of Medicine, Kanagawa, Japan
| | - Sonomi Yoshino
- Department of Endocrinology, Diabetes and Metabolism, Kitasato University School of Medicine, Kanagawa, Japan
| | - Akifumi Ogawa
- Department of Endocrinology, Diabetes and Metabolism, Kitasato University School of Medicine, Kanagawa, Japan
| | - Masayoshi Shichiri
- Department of Endocrinology, Diabetes and Metabolism, Kitasato University School of Medicine, Kanagawa, Japan
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Sanai T, Tada H, Ono T, Fukumitsu T. Changes of the glycemic control and therapeutic regimen for diabetes mellitus in the Japanese patients on hemodialysis. Diabetes Metab Syndr 2015; 9:244-246. [PMID: 25866098 DOI: 10.1016/j.dsx.2015.02.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES/METHODS Diabetes mellitus (DM) has become important with regard to mortality in hemodialysis (HD) patients, so it is necessary to optimize the treatment of these patients. We examined the changes in glycemic control and therapeutic regimen, including insulin and oral hypoglycemic agent (OHA) and the diet/exercise in the HD patients. RESULTS Although DM was observed in 42 (32.6%) of the 129 (male/female 89/40) patients, there was a male predominance, with 35 DM patients being male (83.3%). The therapeutic regimens of DM patients were as follows: insulin was used in 13, OHA in 20, and diet/exercise in nine patients. The DM patients, who had not used insulin, included five patients receiving OHA (25.0%) and diet/exercise in five patients (55.6%). Nineteen of 20 OHA patients used a dipeptidyl peptidase-IV inhibitor. Although the postprandial blood glucose (PBG) in insulin was 191 ± 89 (the mean ± standard deviation [SD]) mg/dL, that in OHA group was 140 ± 36 mg/dL. The mean and the SD of the PBG were larger in insulin than in OHA group. The body mass index (BMI) and hemoglobin A1c were higher in patients treated with insulin (24.1 ± 4.2 kg/m(2), 7.1 ± 1.2%) than in patients treated with the OHA (21.2 ± 2.8 kg/m(2), 5.8 ± 0.5%; P<0.05) or diet/exercise (19.2 ± 3.6 kg/m(2), 5.3 ± 0.6%; P<0.05). The BMI and hemoglobin A1c were higher in diet/exercise compared to OHA and insulin groups. CONCLUSION The patients undergoing HD develop DM, especially males. The BMI and hemoglobin A1c were useful to determine whether there should be a change from insulin to OHA or to diet/exercise therapy. A dipeptidyl peptidase-IV inhibitor might be a preferable treatment for the DM patients with HD in terms of the mean and SD of PBG.
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Affiliation(s)
- Toru Sanai
- The Division of Nephrology and Cardiology, Fukumitsu Hospital, Japan.
| | - Hideo Tada
- The Division of Nephrology and Cardiology, Fukumitsu Hospital, Japan
| | - Takashi Ono
- The Division of Nephrology and Cardiology, Fukumitsu Hospital, Japan
| | - Toma Fukumitsu
- Department of Internal Medicine and Surgery, Fukumitsu Hospital, Japan
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Lo C, Toyama T, Hirakawa Y, Jun M, Cass A, Hawley C, Pilmore H, Badve SV, Perkovic V, Zoungas S. Insulin and glucose-lowering agents for treating people with diabetes and chronic kidney disease. Cochrane Database Syst Rev 2015. [DOI: 10.1002/14651858.cd011798] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Clement Lo
- Monash University; Diabetes and Vascular Research Program, Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine; Clayton VIC Australia
| | - Tadashi Toyama
- The George Institute for Global Health; Renal and Metabolic Division; Camperdown NSW Australia 2050
| | - Yoichiro Hirakawa
- The George Institute for Global Health; Professorial Unit; Camperdown NSW Australia
| | - Min Jun
- The George Institute for Global Health; Camperdown NSW Australia
| | - Alan Cass
- Menzies School of Health Research; PO Box 41096 Casuarina NT Australia 0811
| | - Carmel Hawley
- Princess Alexandra Hospital; Department of Nephrology; Ipswich Road Woolloongabba Queensland Australia 4102
| | - Helen Pilmore
- Auckland Hospital; Department of Renal Medicine; Park Road Grafton Auckland New Zealand
| | - Sunil V Badve
- Princess Alexandra Hospital; Department of Nephrology; Ipswich Road Woolloongabba Queensland Australia 4102
| | - Vlado Perkovic
- The George Institute for Global Health; Camperdown NSW Australia
| | - Sophia Zoungas
- Monash University; Diabetes and Vascular Research Program, Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine; Clayton VIC Australia
- The George Institute for Global Health; Camperdown NSW Australia
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12
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Abstract
The definition of a good glycemic control in patients with diabetes mellitus on hemodialysis is far from settled. In the general population, hemoglobin A1c is highly correlated with the average glycemia of the last 8-12 weeks. However, in hemodialysis patients, the correlation of hbA1c with glycemia is weaker as it also reflects changes in hemoglobin characteristics and red blood cells half-life. As expected, studies show that the association between HbA1c and outcomes in these patients differ from the general population. Therefore, the value of HbA1c in the treatment of hemodialysis patients has been questioned. Guidelines are generally cautious in their recommendations about possible targets of HbA1c in this population. Indeed, the risk of not treating hyperglycemia should be weighed against the particularly high risk of precipitating hypoglycemia in dialysis patients. In this review, a critical analysis of the current role of HbA1c in the care of hemodialysis patients is presented.
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Affiliation(s)
- Silvia Coelho
- Nephrology and Critical Care Departments, Fernando Fonseca Hospital, Amadora, Portugal.,Center for Chronic Diseases (CEDOC), Faculty of Medical Sciences, New University of Lisbon, Lisbon, Portugal
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13
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Nakao T, Inaba M, Abe M, Kaizu K, Shima K, Babazono T, Tomo T, Hirakata H, Akizawa T. Best Practice for Diabetic Patients on Hemodialysis 2012. Ther Apher Dial 2015; 19 Suppl 1:40-66. [DOI: 10.1111/1744-9987.12299] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | | | - Masanori Abe
- Japanese Society for Dialysis Therapy; Tokyo Japan
| | - Kazo Kaizu
- Japanese Society for Dialysis Therapy; Tokyo Japan
| | - Kenji Shima
- Japanese Society for Dialysis Therapy; Tokyo Japan
| | | | - Tadashi Tomo
- Japanese Society for Dialysis Therapy; Tokyo Japan
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14
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HbA1c and survival in maintenance hemodialysis patients with diabetes in Han Chinese population. Int Urol Nephrol 2014; 46:2207-14. [PMID: 24966096 DOI: 10.1007/s11255-014-0764-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Accepted: 06/10/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND Previous observational studies using differing methodologies have yielded inconsistent results regarding the association between glycemic control and outcomes in diabetic patients receiving maintenance hemodialysis (MHD). The aim of this study was to investigate the association between HbA1c and survival in diabetic MHD patients in Han Chinese population. METHODS A 5-year cohort (October 2007-December 2013) of 236 diabetic MHD patients with HbA1c data was examined for associations between HbA1c and mortality. Death hazard ratios (HR) were estimated using Cox regressions. RESULTS Two hundred and thirty-six diabetes patients undergoing MHD in clinics over 5 years were included in our study. Unadjusted survival analyses indicated paradoxically lower death HRs with higher HbA1c values. However, after adjusting for potential confounders (demographics, dialysis vintage, comorbidity, anemia, and inflammation), higher HbA1c values were incrementally associated with higher death risks. CONCLUSIONS Poor glycemic control (HbA1c ≥ 8 %) appears to be associated with decreased survival in the general population of diabetic MHD patients. Our study suggests that moderate hyperglycemia increases the risk for all-cause mortality of diabetic MHD patients in Han Chinese population.
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15
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16
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Rhee CM, Leung AM, Kovesdy CP, Lynch KE, Brent GA, Kalantar-Zadeh K. Updates on the management of diabetes in dialysis patients. Semin Dial 2014; 27:135-45. [PMID: 24588802 PMCID: PMC3960718 DOI: 10.1111/sdi.12198] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Diabetes mellitus is the leading cause of end-stage renal disease (ESRD) in the U.S. and many countries globally. The role of improved glycemic control in ameliorating the exceedingly high mortality risk of diabetic dialysis patients is unclear. The treatment of diabetes in ESRD patients is challenging, given changes in glucose homeostasis, the unclear accuracy of glycemic control metrics, and the altered pharmacokinetics of glucose-lowering drugs by kidney dysfunction, the uremic milieu, and dialysis therapy. Up to one-third of diabetic dialysis patients may experience spontaneous resolution of hyperglycemia with hemoglobin A1c (HbA1c) levels <6%, a phenomenon known as "Burnt-Out Diabetes," which remains with unclear biologic plausibility and undetermined clinical implications. Conventional methods of glycemic control assessment are confounded by the laboratory abnormalities and comorbidities associated with ESRD. Similar to more recent approaches in the general population, there is concern that glucose normalization may be harmful in ESRD patients. There is uncertainty surrounding the optimal glycemic target in this population, although recent epidemiologic data suggest that HbA1c ranges of 6% to 8%, as well as 7% to 9%, are associated with increased survival rates among diabetic dialysis patients. Lastly, many glucose-lowering drugs and their active metabolites are renally metabolized and excreted, and hence, require dose adjustment or avoidance in dialysis patients.
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Affiliation(s)
- Connie M. Rhee
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine, Orange, California
| | - Angela M. Leung
- Division of Endocrinology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Csaba P. Kovesdy
- Division of Nephrology, Memphis Veterans Affairs Medical Center, Memphis Tennessee
- Division of Nephrology, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Katherine E. Lynch
- Division of Nephrology, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Gregory A. Brent
- Division of Endocrinology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Kamyar Kalantar-Zadeh
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine, Orange, California
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17
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Speeckaert M, Van Biesen W, Delanghe J, Slingerland R, Wiecek A, Heaf J, Drechsler C, Lacatus R, Vanholder R, Nistor I, Bilo H, Bolignano D, Couchoud C, Covic A, Coentrao L, Sutter JD, Drechsler C, Gnudi L, Goldsmith D, Heaf J, Heimburger O, Jager K, Nacak H, Nistor I, Soler M, Tomson C, Vanhuffel L, Biesen WV, Laecke SV, Weekers L, Wiecek A. Are there better alternatives than haemoglobin A1c to estimate glycaemic control in the chronic kidney disease population? Nephrol Dial Transplant 2014; 29:2167-77. [DOI: 10.1093/ndt/gfu006] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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18
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Hill CJ, Maxwell AP, Cardwell CR, Freedman BI, Tonelli M, Emoto M, Inaba M, Hayashino Y, Fukuhara S, Okada T, Drechsler C, Wanner C, Casula A, Adler AI, Lamina C, Kronenberg F, Streja E, Kalantar-Zadeh K, Fogarty DG. Glycated Hemoglobin and Risk of Death in Diabetic Patients Treated With Hemodialysis: A Meta-analysis. Am J Kidney Dis 2014; 63:84-94. [DOI: 10.1053/j.ajkd.2013.06.020] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 06/27/2013] [Indexed: 12/31/2022]
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19
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Li PKT, Culleton BF, Ariza A, Do JY, Johnson DW, Sanabria M, Shockley TR, Story K, Vatazin A, Verrelli M, Yu AW, Bargman JM. Randomized, controlled trial of glucose-sparing peritoneal dialysis in diabetic patients. J Am Soc Nephrol 2013; 24:1889-900. [PMID: 23949801 DOI: 10.1681/asn.2012100987] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Glucose-containing peritoneal dialysis solutions may exacerbate metabolic abnormalities and increase cardiovascular risk in diabetic patients. Here, we examined whether a low-glucose regimen improves metabolic control in diabetic patients undergoing peritoneal dialysis. Eligible patients were randomly assigned in a 1:1 manner to the control group (dextrose solutions only) or to the low-glucose intervention group (IMPENDIA trial: combination of dextrose-based solution, icodextrin and amino acids; EDEN trial: a different dextrose-based solution, icodextrin and amino acids) and followed for 6 months. Combining both studies, 251 patients were allocated to control (n=127) or intervention (n=124) across 11 countries. The primary endpoint was change in glycated hemoglobin from baseline. Mean glycated hemoglobin at baseline was similar in both groups. In the intention-to-treat population, the mean glycated hemoglobin profile improved in the intervention group but remained unchanged in the control group (0.5% difference between groups; 95% confidence interval, 0.1% to 0.8%; P=0.006). Serum triglyceride, very-low-density lipoprotein, and apolipoprotein B levels also improved in the intervention group. Deaths and serious adverse events, including several related to extracellular fluid volume expansion, increased in the intervention group, however. These data suggest that a low-glucose dialysis regimen improves metabolic indices in diabetic patients receiving peritoneal dialysis but may be associated with an increased risk of extracellular fluid volume expansion. Thus, use of glucose-sparing regimens in peritoneal dialysis patients should be accompanied by close monitoring of fluid volume status.
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Affiliation(s)
- Philip K T Li
- Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
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20
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Jun M, Lo C, Badve SV, Pilmore H, White SL, Hawley C, Cass A, Perkovic V, Zoungas S. Glucose lowering therapies for chronic kidney disease and kidney transplantation. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2012. [DOI: 10.1002/14651858.cd009966] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Park J, Lertdumrongluk P, Molnar MZ, Kovesdy CP, Kalantar-Zadeh K. Glycemic control in diabetic dialysis patients and the burnt-out diabetes phenomenon. Curr Diab Rep 2012; 12:432-9. [PMID: 22638938 PMCID: PMC5796524 DOI: 10.1007/s11892-012-0286-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Diabetes mellitus (DM) is the most common cause of end-stage kidney disease and a major risk of morbidity and mortality. It is not clear whether medical management of DM has any significant beneficial effect on clinical outcomes at the end-stage of diabetic nephropathy with full-blown micro- and macro-angiopathic complications. Both loss of kidney function and dialysis treatment interfere with glucose homeostasis and confound glycemic control. Given the unique nature of uremic milieu and dialysis therapy related alterations, there have been some debates about reliance on the conventional measures of glycemic control, in particular the clinical relevance of hemoglobin A1c and its recommended target range of <7 % in diabetic dialysis patients. Moreover, a so-called burnt-out diabetes phenomenon has been described, in that many diabetic dialysis patients experience frequent hypoglycemic episodes prompting cessation of their anti-diabetic therapies transiently or even permanently. By reviewing the recent literature we argue that the use of A1c for management of diabetic dialysis patients should be encouraged if appropriate target ranges specific for these patients (e.g. 6 to 8 %) are used. We also argue that "burnt-out diabetes" is a true biologic phenomenon and highly prevalent in dialysis patients with established history and end-stage diabetic nephropathy and explore the role of protein-energy wasting to this end. Similarly, the J- or U-shaped associations between A1c or blood glucose concentrations and mortality are likely biologically plausible phenomena that should be taken into consideration in the management of diabetic dialysis patients to avoid hypoglycemia and its fatal consequences in diabetic dialysis patients.
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Affiliation(s)
- Jongha Park
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA
- Division of Nephrology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Paungpaga Lertdumrongluk
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Miklos Z Molnar
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA
- Institute of Pathophysiology, Semmelweis University, Budapest, Hungary
| | - Csaba P Kovesdy
- Division of Nephrology, University of Virginia, Charlottesville, VA, USA
- Division of Nephrology, Salem VA Medical Center, Salem, VA, USA
| | - Kamyar Kalantar-Zadeh
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA
- David Geffen School of Medicine at UCLA, and Fielding School of Public Health at UCLA, Los Angeles, CA, USA
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Kalantar-Zadeh K. A critical evaluation of glycated protein parameters in advanced nephropathy: a matter of life or death: A1C remains the gold standard outcome predictor in diabetic dialysis patients. Counterpoint. Diabetes Care 2012; 35:1625-8. [PMID: 22723587 PMCID: PMC3379587 DOI: 10.2337/dc12-0483] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Chronic kidney disease remains as one of the major complications for individuals with diabetes and contributes to considerable morbidity. Individuals subjected to dialysis therapy, half of whom are diabetic, experience a mortality of ~20% per year. Understanding factors related to mortality remains a priority. Outside of dialysis units, A1C is unquestioned as the "gold standard" for glycemic control. In the recent past, however, there is evidence in large cohorts of diabetic dialysis patients that A1C at both the higher and lower levels was associated with mortality. Given the unique conditions associated with the metabolic dysregulation in dialysis patients, there is a critical need to identify accurate assays to monitor glycemic control to relate to cardiovascular endpoints. In this two-part point-counterpoint narrative, Drs. Freedman and Kalantar-Zadeh take opposing views on the utility of A1C in relation to cardiovascular disease and survival and as to consideration of use of other short-term markers in glycemia. In the narrative preceeding this counterpoint, Dr. Freedman suggests that glycated albumin may be the preferred glycemic marker in dialysis subjects. In the counterpoint narrative below, Dr. Kalantar-Zadeh defends the use of A1C as the unquestioned gold standard for glycemic management in dialysis subjects.
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Affiliation(s)
- Kamyar Kalantar-Zadeh
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA.
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Sekercioglu N, Dimitriadis C, Pipili C, Elias RM, Kim J, Oreopoulos DG, Bargman JM. Glycemic control and survival in peritoneal dialysis patients with diabetes mellitus. Int Urol Nephrol 2012; 44:1861-9. [PMID: 22581421 DOI: 10.1007/s11255-012-0180-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Accepted: 04/10/2012] [Indexed: 10/28/2022]
Abstract
PURPOSE The optimal target for glycated hemoglobin (HbA1c) has not been well defined in peritoneal dialysis (PD) patients with diabetes mellitus. METHODS The objective of our study was to examine the predictive value of predialysis and time-averaged follow-up HbA1c values on technique and patient survival in diabetic PD patients treated in the Toronto General Hospital Home Peritoneal Dialysis Unit, between January 1, 2003 and December 31, 2008 with a median follow-up period of 30±23 months. RESULTS Ninety-one patients (mean age 64±13 years-old) were included in this retrospective study. Patients were followed between 3 and 91 months (mean duration 30±23 months). During this period, 40 patients died. We found no statistically significant correlation between baseline predialysis HbA1c values and technique and patient survival. Time-averaged follow-up HbA1c in increments<6.5%, 6.5-8%, and >8% showed no significant survival difference among groups. CONCLUSIONS There was no significant correlation of baseline and time-averaged follow-up HbA1c values with patient and PD technique survival.
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Affiliation(s)
- Nigar Sekercioglu
- The Home Peritoneal Dialysis Unit, Toronto General Hospital, University Health Network and University of Toronto, 200 Elizabeth Street, 8N-840, Toronto, ON, M5G 2C4, Canada
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Kleophas W. Individuelle Therapieziele bei Diabetes und Dialyse. DIABETOLOGE 2012. [DOI: 10.1007/s11428-011-0818-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Ricks J, Molnar MZ, Kovesdy CP, Shah A, Nissenson AR, Williams M, Kalantar-Zadeh K. Glycemic control and cardiovascular mortality in hemodialysis patients with diabetes: a 6-year cohort study. Diabetes 2012; 61:708-15. [PMID: 22315308 PMCID: PMC3282812 DOI: 10.2337/db11-1015] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Accepted: 12/01/2011] [Indexed: 11/23/2022]
Abstract
Previous observational studies using differing methodologies have yielded inconsistent results regarding the association between glycemic control and outcomes in diabetic patients receiving maintenance hemodialysis (MHD). We examined mortality predictability of A1C and random serum glucose over time in a contemporary cohort of 54,757 diabetic MHD patients (age 63 ± 13 years, 51% men, 30% African Americans, 19% Hispanics). Adjusted all-cause death hazard ratio (HR) for baseline A1C increments of 8.0-8.9, 9.0-9.9, and ≥10%, compared with 7.0-7.9% (reference), was 1.06 (95% CI 1.01-1.12), 1.05 (0.99-1.12), and 1.19 (1.12-1.28), respectively, and for time-averaged A1C was 1.11 (1.05-1.16), 1.36 (1.27-1.45), and 1.59 (1.46-1.72). A symmetric increase in mortality also occurred with time-averaged A1C levels in the low range (6.0-6.9%, HR 1.05 [95% CI 1.01-1.08]; 5.0-5.9%, 1.08 [1.04-1.11], and ≤5%, 1.35 [1.29-1.42]) compared with 7.0-7.9% in fully adjusted models. Adjusted all-cause death HR for time-averaged blood glucose 175-199, 200-249, 250-299, and ≥300 mg/dL, compared with 150-175 mg/dL (reference), was 1.03 (95% CI 0.99-1.07), 1.14 (1.10-1.19), 1.30 (1.23-1.37), and 1.66 (1.56-1.76), respectively. Hence, poor glycemic control (A1C ≥8% or serum glucose ≥200 mg/dL) appears to be associated with high all-cause and cardiovascular death in MHD patients. Very low glycemic levels are also associated with high mortality risk.
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Affiliation(s)
- Joni Ricks
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles, Medical Center, Torrance, California
| | - Miklos Z. Molnar
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles, Medical Center, Torrance, California
- Institute of Pathophysiology, Semmelweis University, Budapest, Hungary
| | - Csaba P. Kovesdy
- Division of Nephrology, Salem VA Medical Center, Salem, Virginia
- Division of Nephrology, University of Virginia, Charlottesville, Virginia
| | - Anuja Shah
- Division of Nephrology and Hypertension, Harbor–University of California, Los Angeles, Medical Center, Torrance, California
| | - Allen R. Nissenson
- DaVita Inc., Denver, Colorado
- David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California
| | - Mark Williams
- Renal Unit, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts
| | - Kamyar Kalantar-Zadeh
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles, Medical Center, Torrance, California
- Division of Nephrology and Hypertension, Harbor–University of California, Los Angeles, Medical Center, Torrance, California
- Renal Unit, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts
- Department of Epidemiology, University of California, Los Angeles, School of Public Health, Los Angeles, California
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Molnar MZ, Huang E, Hoshino J, Krishnan M, Nissenson AR, Kovesdy CP, Kalantar-Zadeh K. Association of pretransplant glycemic control with posttransplant outcomes in diabetic kidney transplant recipients. Diabetes Care 2011; 34:2536-41. [PMID: 21994430 PMCID: PMC3220839 DOI: 10.2337/dc11-0906] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Observational studies have yielded inconsistent findings regarding the association of hemoglobin A(1c) (HbA(1c)) with survival in diabetic patients on dialysis. The association between pretransplant glycemic control and short- and long-term posttransplant outcomes in kidney transplant recipients is not clear. RESEARCH DESIGN AND METHODS Linking the 5-year patient data of a large dialysis organization (DaVita) to the Scientific Registry of Transplant Recipients, we identified 2,872 diabetic dialysis patients who underwent first kidney transplantation. Mortality or graft failure and delayed graft function (DGF) risks were estimated by Cox regression (hazard ratio [HR]) and logistic regression (odds ratio), respectively. RESULTS Patients were 53 ± 11 years old and included 36% women and 24% African Americans. In our fully adjusted model, allograft failure-censored, all-cause death HR and 95% CI for time-averaged pretransplant HbA(1c) categories of 7 to <8%, 8 to <9%, 9 to 10%, and ≥10%, compared with 6 to <7% (reference), were 0.89 (0.59-1.36), 2.06 (1.31-3.24), 1.41 (0.73-2.74), and 3.43 (1.56-7.56), respectively; and graft failure-censored cardiovascular death HR was 0.38 (0.13-1.05), 1.78 (0.69-4.55), 1.59 (0.44-5.76), and 4.28 (0.85-21.64), respectively. We did not find any difference in risk of death-censored graft failure or DGF with different pretransplant HbA(1c) levels. CONCLUSIONS Poor pretransplant glycemic control appears associated with decreased posttransplant survival in kidney transplant recipients, whereas allograft outcomes may not be affected.
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Affiliation(s)
- Miklos Z Molnar
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California, USA
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Sturm G, Lamina C, Zitt E, Lhotta K, Haider F, Neyer U, Kronenberg F. Association of HbA1c values with mortality and cardiovascular events in diabetic dialysis patients. The INVOR study and review of the literature. PLoS One 2011; 6:e20093. [PMID: 21625600 PMCID: PMC3097236 DOI: 10.1371/journal.pone.0020093] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Accepted: 04/12/2011] [Indexed: 12/11/2022] Open
Abstract
Background Improved glycemic control reduces complications in patients with diabetes mellitus (DM). However, it is discussed controversially whether patients with diabetes mellitus and end-stage renal disease benefit from strict glycemic control. Methods We followed 78 patients with DM initiating dialysis treatment of the region of Vorarlberg in a prospective cohort study applying a time-dependent Cox regression analysis using all measured laboratory values for up to more than seven years. This resulted in 880 HbA1c measurements (with one measurement every 3.16 patient months on average) during the entire observation period. Non-linear P-splines were used to allow flexible modeling of the association with mortality and cardiovascular disease (CVD) events. Results We observed a decreased mortality risk with increasing HbA1c values (HR = 0.72 per 1% increase, p = 0.024). Adjustment for age and sex and additional adjustment for other CVD risk factors only slightly attenuated the association (HR = 0.71, p = 0.044). A non-linear P-spline showed that the association did not follow a fully linear pattern with a highly significant non-linear component (p = 0.001) with an increased risk of all-cause mortality for HbA1c values up to 6–7%. Causes of death were associated with HbA1c values. The risk for CVD events, however, increased with increasing HbA1c values (HR = 1.24 per 1% increase, p = 0.048) but vanished after extended adjustments. Conclusions This study considered the entire information collected on HbA1c over a period of more than seven years. Besides the methodological advantages our data indicate a significant inverse association between HbA1c levels and all-cause mortality. However, for CVD events no significant association could be found.
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Affiliation(s)
- Gisela Sturm
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Innsbruck Medical University, Innsbruck, Austria
| | - Claudia Lamina
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Innsbruck Medical University, Innsbruck, Austria
| | - Emanuel Zitt
- Department of Nephrology and Dialysis, Academic Teaching Hospital Feldkirch, Feldkirch, Austria
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
| | - Karl Lhotta
- Department of Nephrology and Dialysis, Academic Teaching Hospital Feldkirch, Feldkirch, Austria
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
| | - Florian Haider
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Innsbruck Medical University, Innsbruck, Austria
| | - Ulrich Neyer
- Department of Nephrology and Dialysis, Academic Teaching Hospital Feldkirch, Feldkirch, Austria
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
| | - Florian Kronenberg
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Innsbruck Medical University, Innsbruck, Austria
- * E-mail:
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Duong U, Mehrotra R, Molnar MZ, Noori N, Kovesdy CP, Nissenson AR, Kalantar-Zadeh K. Glycemic control and survival in peritoneal dialysis patients with diabetes mellitus. Clin J Am Soc Nephrol 2011; 6:1041-8. [PMID: 21511838 PMCID: PMC3087769 DOI: 10.2215/cjn.08921010] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Accepted: 12/20/2010] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND OBJECTIVES The optimal target for glycemic control has not been established for diabetic peritoneal dialysis (PD) patients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We examined mortality-predictability of hemoglobin A1c random serum glucose in a contemporary cohort of diabetic PD patients treated in DaVita dialysis clinics July 2001 through June 2006 with follow-up through June 2007. RESULTS We identified 2798 diabetic PD patients with A1c data. Serum glucose correlated with A1C (r=0.51). Adjusted all-cause death hazard ratio and 95% confidence interval for baseline A1c increments of 7.0 to 7.9%, 8.0 to 8.9%, 9.0 to 9.9%, and ≥10%, compared with 6.0 to 6.9% (reference), were 1.13 (0.97 to 1.32), 1.05 (0.88 to 1.27), 1.06 (0.84 to 1.34), and 1.48 (1.18 to 1.86); and for time-averaged A1c values were 1.10 (0.96 to 1.27), 1.28 (1.07 to 1.53), 1.34 (1.05 to 1.70), and 1.81 (1.33 to 2.46), respectively. The A1c-mortality association was modified by hemoglobin level such that higher all-cause mortality was evident only in nonanemic patients. Similar but non-significant trends in cardiovascular death risk was found across A1c increments. Adjusted all-cause death HR for time-averaged blood glucose 150 to 199, 200 to 249, 250 to 299, and ≥300 mg/dl, compared with 60 to 99 mg/dl (reference), were 1.02 (0.70 to 1.47), 1.12 (0.77 to 1.63), 1.45 (0.97 to 2.18), and 2.10 (1.37 to 3.20), respectively. CONCLUSIONS Poor glycemic control appears associated incrementally with higher mortality in PD patients. Moderate to severe hyperglycemia is associated with higher death risk especially in certain subgroups.
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Affiliation(s)
- Uyen Duong
- Harold Simmons Center for Chronic Disease Research & Epidemiology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California
| | - Rajnish Mehrotra
- Division of Nephrology and Hypertension, Harbor-UCLA Medical Center, Torrance, California
- David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Miklos Z. Molnar
- Harold Simmons Center for Chronic Disease Research & Epidemiology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California
- Institute of Pathophysiology, Semmelweis University, Budapest, Hungary
| | - Nazanin Noori
- Harold Simmons Center for Chronic Disease Research & Epidemiology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California
| | - Csaba P. Kovesdy
- Division of Nephrology, Salem VA Medical Center, Salem, Virginia
- Division of Nephrology, University of Virginia, Charlottesville, Virginia
| | - Allen R. Nissenson
- David Geffen School of Medicine at UCLA, Los Angeles, California
- DaVita, Inc., El Segundo, California; and
| | - Kamyar Kalantar-Zadeh
- Harold Simmons Center for Chronic Disease Research & Epidemiology, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California
- Division of Nephrology and Hypertension, Harbor-UCLA Medical Center, Torrance, California
- David Geffen School of Medicine at UCLA, Los Angeles, California
- Department of Epidemiology, UCLA School of Public Health, Los Angeles, California
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Afsar B, Elsurer Afsar R. HbA1c Is Related with Uremic Pruritus in Diabetic and Nondiabetic Hemodialysis Patients. Ren Fail 2011; 34:1264-9. [DOI: 10.3109/0886022x.2011.560401] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Shima K, Komatsu M, Kawahara K, Minaguchi J, Kawashima S. Stringent glycaemic control prolongs survival in diabetic patients with end-stage renal disease on haemodialysis. Nephrology (Carlton) 2011; 15:632-8. [PMID: 20883284 DOI: 10.1111/j.1440-1797.2010.01273.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
AIM No suitable index or optimal target for diabetic control has been established for diabetic patients with end-stage renal disease (ESRD) undergoing haemodialysis. To address these issues, the single-centre observational study was conducted. METHODS Two hundred and forty-five diabetic ESRD patients (23.3% female; age at initiation of haemodialysis 61.7 ± 10.7 years) at start of haemodialysis between 1 January 1995 and 31 December 2004 were enrolled. Subjects were grouped according to glycaemic control level throughout the observational period as follows: mean postprandial plasma glucose (PPG) <8.9 mmol/L, 8.9 mmol/L ≤ PPG < 10.0 mmol/L, 10.0 mmol/L ≤ PPG < 11.1 mmol/L, 11.1 mmol/L ≤ PPG < 12.2 mmol/L and PPG ≥ 12.2 mmol/L; and HbA1c < 6.0%, 6.0-6.4%, 6.5-6.9% and ≥ 7.0%. Survival was then followed until 31 December 2005. RESULTS Cumulative survival of groups of 10.0 mmol/L ≤ PPG < 11.1 mmol/L, 11.1 ≤ PPG < 12.2 and PPG ≥ 12.2 mmol/L was significantly lower than that for PPG < 8.9 mmol/L as determined by Kaplan-Meier estimation (P = 0.016, 0.009 and 0.031, respectively; log-rank test). In both uni- and multivariate Cox proportional hazard models, mortality hazard ratios were significantly higher for PPG ≥ 10.0 mmol/L than for PPG < 8.9 mmol/L (P = 0.002-0.021). Kaplan-Meier survival curves grouped by HbA1c levels showed no correlation between HbA1c and survival during the observational period. No significant difference in mortality hazard ratios was seen for any HbA1c groups evaluated by Cox proportional hazard model. CONCLUSION Intensive management of diabetic control at a stringent mean on-study PPG < 10.0 mmol/L will improve the life expectancy in diabetic dialysis patients. However, no range of HbA1c values obtained in this study showed any clear difference in clinical outcomes.
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Affiliation(s)
- Kenji Shima
- Department of Medicine, Kawashima Hospital, Tokushima, Japan.
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Okada T, Nakao T, Matsumoto H, Nagaoka Y, Tomaru R, Iwasawa H, Wada T. Influence of proteinuria on glycated albumin values in diabetic patients with chronic kidney disease. Intern Med 2011; 50:23-9. [PMID: 21212569 DOI: 10.2169/internalmedicine.50.4129] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Glycated albumin (GA), which is an alternative glycemic marker, is influenced by factors associated with albumin turnover, and it is not clear whether proteinuria influences GA values in diabetic patients with chronic kidney disease (CKD). METHODS We enrolled 94 diabetic patients with CKD stages 3 to 5. GA, glycated hemoglobin, and urinary protein excretion (UP) levels were consecutively obtained in each patient. The correlations between GA and UP and those between changes in GA and UP were examined. RESULTS There was a significant correlation between GA and UP in all cases (r=-0.46, p<0.0001), however no significant correlation was found in cases with UP of 0-3.49 g/day (r=0.01). GA values in cases with UP ≥3.5 g/day were significantly lower than those in cases with UP <3.5 g/day [UP ≥3.5 g/day and serum albumin (Alb) ≤3 g/dL; 12.0 ± 1.3%, UP ≥3.5 g/day and Alb >3 g/dL; 17.8 ± 4.3%, 0≥ UP <3.5 g/day; 21.2 ± 4.2%], while no significant difference in HbA(1c) or glucose levels was found. In cases with a minimum of UP ≥0.5 g/day, no significant correlation was found between the difference in GA and the difference in UP at the point of maximum UP and minimum UP (r=0.04). CONCLUSION Nephrotic-range proteinuria decreases GA values independent of the glycemic state, while non-nephrotic range proteinuria has no significant influence on GA values in diabetic CKD patients.
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MESH Headings
- Adult
- Aged
- Biomarkers/blood
- Cross-Sectional Studies
- Diabetes Mellitus, Type 2/blood
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/urine
- Diabetic Nephropathies/blood
- Diabetic Nephropathies/complications
- Diabetic Nephropathies/urine
- Female
- Glycated Hemoglobin/metabolism
- Glycation End Products, Advanced
- Humans
- Kidney Failure, Chronic/blood
- Kidney Failure, Chronic/complications
- Kidney Failure, Chronic/urine
- Male
- Middle Aged
- Nephrotic Syndrome/blood
- Nephrotic Syndrome/complications
- Nephrotic Syndrome/urine
- Proteinuria/blood
- Proteinuria/complications
- Proteinuria/urine
- Renal Insufficiency, Chronic/blood
- Renal Insufficiency, Chronic/complications
- Renal Insufficiency, Chronic/urine
- Serum Albumin/metabolism
- Glycated Serum Albumin
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Affiliation(s)
- Tomonari Okada
- Department of Nephrology, Tokyo Medical University, Japan.
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Williams ME, Lacson E, Wang W, Lazarus JM, Hakim R. Glycemic control and extended hemodialysis survival in patients with diabetes mellitus: comparative results of traditional and time-dependent Cox model analyses. Clin J Am Soc Nephrol 2010; 5:1595-601. [PMID: 20671217 DOI: 10.2215/cjn.09301209] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND AND OBJECTIVES The benefits and risks of aggressive glycemic control in diabetes mellitus complicated by end-stage kidney failure remain uncertain but have importance because of the large patient population with inferior overall prognosis. Recent large observational studies with differing methodologies reached somewhat contrasting conclusions regarding the association of hemoglobin A1c with survival in diabetic chronic hemodialysis patients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This study supplements the authors' previous analysis (which found no correlation) by extending the follow-up period to 3 years and using time-dependent survival models with repeated measures. Among 24,875 nationally distributed study patients, 94.5% had type 2 diabetes, allowing additional analysis in the subset with type 1 diabetes. Data were collected at baseline and every quarter to a maximum of 3 years' follow-up. RESULTS Adjusted standard and time-dependent Cox models indicated that only extremes of glycemia were associated with inferior survival. There was no effect modification by serum albumin levels, a marker of protein nutrition status, and no trend associated with random glucose measurements in a post hoc analysis. In type 1 diabetic patients, upper extreme hemoglobin A1c values indicated lower survival risk. CONCLUSIONS Sustained extremes of glycemia were only variably and weakly associated with decreased survival in this population. In the absence of randomized, controlled trials, these results suggest that aggressive glycemic control cannot be routinely recommended for all diabetic hemodialysis patients on the basis of reducing mortality risk. Physicians are encouraged to individualize glycemic targets based on potential risks and benefits in diabetic ESRD patients.
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Verner Codoceo R. Diabetes mellitus en el paciente con enfermedad renal avanzada. REVISTA MÉDICA CLÍNICA LAS CONDES 2010. [DOI: 10.1016/s0716-8640(10)70574-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Pedagogos E. Diabetes. Nephrology (Carlton) 2010; 15 Suppl 1:S15-8. [DOI: 10.1111/j.1440-1797.2010.01226.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kovesdy CP, Park JC, Kalantar-Zadeh K. Glycemic control and burnt-out diabetes in ESRD. Semin Dial 2010; 23:148-56. [PMID: 20374552 DOI: 10.1111/j.1525-139x.2010.00701.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Treatment of early diabetes mellitus, the most common cause of chronic kidney disease (CKD), may prevent or slow the progression of diabetic nephropathy and lower mortality and the incidence of cardiovascular disease in the general diabetic population and in patients with early stages of CKD. It is unclear whether glycemic control in patients with advanced CKD, including those with end-stage renal disease (ESRD) who undergo maintenance dialysis treatment is beneficial. Aside from the uncertain benefits of treatment in ESRD, hypoglycemic interventions in this population are also complicated by the complex changes in glucose homeostasis related to decreased kidney function and to dialytic therapies, occasionally leading to spontaneous resolution of hyperglycemia and normalization of hemoglobin A1c levels, a condition which might be termed "burnt-out diabetes." Further difficulties in ESRD are posed by the complicated pharmacokinetics of antidiabetic medications and the serious flaws in our available diagnostic tools used for monitoring long-term glycemic control. We review the physiology and pathophysiology of glucose homeostasis in advanced CKD and ESRD, the available antidiabetic medications and their specifics related to kidney function, and the diagnostic tools used to monitor the severity of hyperglycemia and the therapeutic effects of available treatments, along with their deficiencies in ESRD. We also review the concept of burnt-out diabetes and summarize the findings of studies that examined outcomes related to glycemic control in diabetic ESRD patients, and emphasize areas in need of further research.
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Affiliation(s)
- Csaba P Kovesdy
- Division of Nephrology, Salem Veterans Affairs Medical Center, Salem, VA 24153, USA.
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Shurraw S, Majumdar SR, Thadhani R, Wiebe N, Tonelli M. Glycemic control and the risk of death in 1,484 patients receiving maintenance hemodialysis. Am J Kidney Dis 2010; 55:875-84. [PMID: 20346561 DOI: 10.1053/j.ajkd.2009.12.038] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2009] [Accepted: 12/21/2009] [Indexed: 12/25/2022]
Abstract
BACKGROUND It is controversial whether tighter glycemic control is associated with better clinical outcomes in people with kidney failure. We aim to determine whether worse glycemic control, measured using serum glucose and hemoglobin A(1c) (HbA(1c)) levels, is independently associated with higher mortality in patients undergoing maintenance hemodialysis. STUDY DESIGN Retrospective cohort study. SETTING & PARTICIPANTS 1,484 patients starting maintenance hemodialysis therapy in Alberta, Canada, between 2001 and 2007. PREDICTOR Serum glucose and HbA(1c) levels. OUTCOME All-cause mortality. MEASUREMENTS Monthly casual glucose levels from specimens drawn immediately before the first dialysis treatment were averaged over 3 months before and after hemodialysis therapy initiation. Similarly, monthly HbA(1c) values in patients with or at risk of diabetes were averaged. RESULTS Overall, median age was 66 years, 41% were women, 75% were white, and 55% had diabetes. All-cause mortality during 8 years (median, 1.5 years) was 43%; it was 49% in those with diabetes. There was no relation between average glucose level and mortality in unadjusted analysis (HR, 1.00 per 18 mg/dL [1 mmol/L]; P = 0.4) or after adjustment for confounders (HR, 0.98 per 18 mg/dL; 95% CI, 0.96-1.01; P = 0.2). Higher HbA(1c) level was not associated with mortality when analyzed in the unadjusted analysis (HR, 1.01 per 1% HbA(1c); P = 0.9) or after adjustment for confounders (HR, 0.98 per 1% HbA1c; 95% CI, 0.88-1.08; P = 0.7). Results were similar when HbA(1c) values were divided into prespecified categories (adjusted P > 0.6 for trend). Markers of malnutrition-inflammation (albumin, hemoglobin, and white blood cell values) or the presence of diabetes did not influence the relation between glycemic control and death (all P for interaction > 0.2). LIMITATIONS Registry data; casual serum glucose measurements; HbA(1c) values available for only a subset of participants. CONCLUSIONS Higher casual glucose and HbA(1c) levels were not associated with mortality in maintenance hemodialysis patients with or without diabetes. This may have implications for recommended glycemic targets, quality indicators, and how best to assess glycemic control in this high-risk population.
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Affiliation(s)
- Sabin Shurraw
- Division of Nephrology, University of Alberta, Edmonton, Alberta, Canada
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Zoungas S, Lui M, Kerr PG, Teede HJ, McNeil JJ, McGrath BP, Polkinghorne KR. Advanced chronic kidney disease, cardiovascular events and the effect of diabetes: data from the Atherosclerosis and Folic Acid Supplementation Trial. Intern Med J 2010; 41:825-32. [DOI: 10.1111/j.1445-5994.2010.02226.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Park HI, Kim YS, Lee J, Kim Y, Shin SJ. [Performance characteristics of glycated albumin and its clinical usefulness in diabetic patients on hemodialysis]. Korean J Lab Med 2010; 29:406-14. [PMID: 19893349 DOI: 10.3343/kjlm.2009.29.5.406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The HbA1c has been considered to underestimate glucose level in diabetic patients on hemodialysis, therefore, glycated albumin (GA) was recently introduced to assess the glycemic control for those cases. We evaluated the performance of GA assay kit of Lucica GA-L (Asahi Kasei Pharma Co., Japan) and compare it with HbA1c for estimating glucose levels. METHODS Tests for precision, linearity and interference were performed and reference interval was determined. Thirty eight of non-hemodialysis and seventy of hemodialysis patients were recruited, whose glucose levels of three-, two- and one-month prior to this study were available for calculating weighted means of glucose (WMGs). The correlation coefficients and the slopes of regression equation between WMG and HbA1c or GA were compared between two groups. Multiple linear regression analyses were used to determine significant predictor for HbA1c and GA. RESULTS Total CV was 2.2% at concentration of 13.7% and 2.8% at 24.6%. The dilution curve between 15.7% and 62.1% was linear. Reference intervals were 10.0% to 16.5% for male and 11.4% to 17.6% for female. The correlation coefficients between WMG and GA were 0.682-0.713 in hemodialysis and 0.640-0.677 in non-hemodialysis. Those between WMG and HbA1c were 0.568-0.625 in hemodialysis and 0.735-0.783 in non-hemodialysis. The slopes of regression equation between GA and WMG in hemodialysis were 0.080-0.090 and 0.130-0.147 in non-hemodialysis. Those between HbA1c and WMG in hemodialysis were 0.012-0.014 and 0.029-0.032 in non-hemodialysis. GA was not influenced by hemodialysis status while HbA1c was. CONCLUSIONS The claimed performance characteristic of Lucica GA-L were verified. WMG were better reflected by GA rather than HbA1c in patients on hemodialysis.
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Affiliation(s)
- Hae-Il Park
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Drechsler C, Krane V, Ritz E, März W, Wanner C. Glycemic control and cardiovascular events in diabetic hemodialysis patients. Circulation 2010; 120:2421-8. [PMID: 19948978 DOI: 10.1161/circulationaha.109.857268] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Patients on maintenance dialysis treatment experience an excess mortality, predominantly of sudden cardiac death. Poor glycemic control is associated with cardiovascular comorbidities in the general population. This study investigated the impact of glycemic control on cardiac and vascular outcomes in diabetic hemodialysis patients. METHODS AND RESULTS Glycohemoglobin A1c (HbA(1c)) was measured in 1255 hemodialysis patients with type 2 diabetes mellitus who participated in the German Diabetes and Dialysis Study (4D Study) and were followed up for a median of 4 years. Using Cox regression analyses, we determined hazard ratios to reach prespecified, adjudicated end points according to HbA(1c) levels at baseline: sudden cardiac death (n=160), myocardial infarction (n=200), stroke (n=103), cardiovascular events (n=469), death caused by heart failure (n=41), and all-cause mortality (n=617). Patients had a mean age of 66+/-8 years (54% male) and mean HbA(1c) of 6.7+/-1.3%. Patients with an HbA(1c) >8% had a >2-fold higher risk of sudden death compared with those with an HbA(1c) < or =6% (hazard ratio, 2.14; 95% confidence interval, 1.33 to 3.44), persisting in multivariate models. With each 1% increase in HbA(1c), the risk of sudden death rose significantly by 18%; similarly, cardiovascular events and mortality increased by 8%. There was a trend for higher risks of stroke and deaths resulting from heart failure, whereas myocardial infarction was not affected. The increased risks of both cardiovascular events and mortality were explained mainly by the impact of HbA(1c) on sudden death. CONCLUSIONS Poor glycemic control was strongly associated with sudden cardiac death in diabetic hemodialysis patients, which accounted for increased cardiovascular events and mortality. In contrast, myocardial infarction was not affected. Whether interventions achieving tight glycemic control decrease sudden death requires further evaluation. Clinical Trial Registration- URL: http://www.clinicalstudyresults.org. Unique identifier: CT-981-423-239.
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Affiliation(s)
- Christiane Drechsler
- Department of Medicine, Division of Nephrology, University Hospital, Oberdürrbacherstrasse 6, D-97080 Würzburg, Germany.
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Weber C, Schnell O. The assessment of glycemic variability and its impact on diabetes-related complications: an overview. Diabetes Technol Ther 2009; 11:623-33. [PMID: 19821754 DOI: 10.1089/dia.2009.0043] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
There is a growing body of evidence that the sole use of hemoglobin A1c is insufficient to adequately reflect the metabolic situation of patients with diabetes mellitus. The risk of developing diabetes-related complications apparently not only depends on the long-term stability of glucose values, but also on the presence or occurrence of short-term glycemic peaks and nadirs lasting for minutes or hours during a day. This leads to the phenomenon of glycemic variability. This article reviews the existing evidence for the clinical relevance of short-term glucose variations and the currently available different means of measuring glycemic variability.
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Affiliation(s)
- Christian Weber
- Institute for Medical Informatics and Biostatistics, Basel, Switzerland.
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Tsujimoto Y, Ishimura E, Tahara H, Kakiya R, Koyama H, Emoto M, Shoji T, Inaba M, Kishimoto H, Tabata T, Nishizawa Y. Poor Glycemic Control is a Significant Predictor of Cardiovascular Events in Chronic Hemodialysis Patients With Diabetes. Ther Apher Dial 2009; 13:358-65. [DOI: 10.1111/j.1744-9987.2009.00691.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cardiothoracic Ratio, Inflammation, Malnutrition, and Mortality in Diabetes Patients on Maintenance Hemodialysis. Am J Med Sci 2009; 337:421-8. [PMID: 19525660 DOI: 10.1097/maj.0b013e31819bbec1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kovesdy CP, Kalantar-Zadeh K. Review article: Biomarkers of clinical outcomes in advanced chronic kidney disease. Nephrology (Carlton) 2009; 14:408-15. [PMID: 19563383 PMCID: PMC5501737 DOI: 10.1111/j.1440-1797.2009.01119.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chronic kidney disease (CKD) is a complex condition, where the decrease in kidney function is accompanied by numerous metabolic changes affecting virtually all the organ systems of the human body. Many of the biomarkers characteristic of the individually affected organ systems have been associated with adverse outcomes including higher mortality in advanced CKD, whereas in persons without CKD these biomarkers may have no bearing on survival. It is believed that the high mortality seen in CKD is a result of several abnormalities conspiring to induce or aggravate a heightened degree of cardiovascular morbidity and predisposition to wasting syndrome. Not all the biomarkers may, however, be causally responsible for the adverse outcomes associated with them. We review various biomarkers of protein-energy wasting, inflammation, oxidative stress, potassium disarrays, acid-base disorders, bone and mineral disorders, glycemic status, and anemia. Although all of these biomarkers have shown associations with worsened outcomes in CKD, markers of protein-energy wasting, especially serum albumin, remain the strongest predictor of survival in CKD patients, especially those undergoing maintenance dialysis treatment. We also review the putative pathophysiologic mechanisms behind these associations, and present potential therapeutic interventions that could result in remedies to improve poor clinical outcomes in CKD, pending the results of current and future controlled trials.
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Affiliation(s)
- Csaba P Kovesdy
- Division of Nephrology, Salem Veterans Affairs Medical Center, 1970 Roanoke Blvd., Salem, VA 24153, USA.
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Ishimura E, Okuno S, Kono K, Fujino-Kato Y, Maeno Y, Kagitani S, Tsuboniwa N, Nagasue K, Maekawa K, Yamakawa T, Inaba M, Nishizawa Y. Glycemic control and survival of diabetic hemodialysis patients--importance of lower hemoglobin A1C levels. Diabetes Res Clin Pract 2009; 83:320-6. [PMID: 19135755 DOI: 10.1016/j.diabres.2008.11.038] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2008] [Revised: 11/25/2008] [Accepted: 11/27/2008] [Indexed: 01/19/2023]
Abstract
AIMS The significance of hemoglobin A1C (HbA1C) on the survival of diabetic hemodialysis patients still remains controversial. We investigated the impact of HbA1C on the survival. METHODS A total of 122 diabetic patients on maintenance hemodialysis (age, 59.9+/-11.9 years [mean+/-SD]; hemodialysis duration: 53+/-38 months) were surveyed (survey period: 46+/-19 months). RESULTS The cumulative survival of the poor glycemic control group (mean HbA1C of 3-month period > or =6.3%, n=62) was significantly lower than that of the good group (HbA1C<6.3%, n=60), as determined by Kaplan-Meier estimation (P=0.0084, log-rank test). Kaplan-Meier analysis also demonstrated that both cardiovascular and non-cardiovascular mortalities were higher in the poor group than in the good group (P=0.0545 and P=0.0453, respectively). In a multivariate Cox proportional hazard model, the mean HbA1C was a significant predictor of survival (OR 1.260 per 1.0%, 95% CI 1.020-0.579, P=0.0325). CONCLUSIONS Poor glycemic control is an independent predictor of poor prognosis in diabetic hemodialysis patients. HbA1C is a clinically useful parameter for identifying the risk for mortality, both for cardiovascular and non-cardiovascular mortality, and that careful management of glycemic control by use of HbA1C is important.
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Affiliation(s)
- E Ishimura
- Department of Nephrology, Osaka City University Graduate School of Medicine, 1-4-3, Asahi-machi, Abeno-ku, Osaka 545-8585, Japan.
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Kumeda Y, Inaba M, Shoji S, Ishimura E, Inariba H, Yabe S, Okamura M, Nishizawa Y. Significant correlation of glycated albumin, but not glycated haemoglobin, with arterial stiffening in haemodialysis patients with type 2 diabetes. Clin Endocrinol (Oxf) 2008; 69:556-61. [PMID: 18248645 DOI: 10.1111/j.1365-2265.2008.03202.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE We recently reported that glycated albumin (GA) is a better indicator of glycaemic control compared with glycated haemoglobin (HbA1c) in haemodialysis (HD) patients with type 2 diabetes. As poor glycaemic control is considered an independent risk factor for atherosclerosis in diabetes, the relationship between GA, HbA1c and arterial stiffening was examined in HD patients with type 2 diabetes. PATIENTS AND METHODS The present study comprised 134 HD patients with type 2 diabetes, and 158 patients without diabetes. Brachial-ankle pulse wave velocity (baPWV) was measured in all patients using a waveform analyser. RESULTS The mean plasma glucose (PG), GA and HbA1c levels were 7.49 +/- 2.28 mmol/l, 20.8 +/- 5.57% and 5.62 +/- 1.26%, respectively, in HD patients with diabetes (n = 134), which were significantly greater than the respective values of 5.77 +/- 1.89 mmol/l, 15.6 +/- 2.34% and 4.98 +/- 0.80% in those without diabetes (n = 158) (P < 0.0001). BaPWV was 21.69 +/- 6.90 m/s in HD patients with diabetes, which was significantly greater than the value of 18.74 +/- 4.89 m/s in those without diabetes (P < 0.0001). When the analysis was performed in a combined population of those patients with and without diabetes, the mean PG (r = 0.155, P < 0.05) and GA (r = 0.117, P < 0.05), but not HbA1c (r = 0.092, P = 0.125), exhibited significant correlations with baPWV. Multivariate regression analysis, which included age, gender, mean blood pressure, and serum levels of albumin, creatinine and LDL cholesterol, to evaluate the independent association of each marker for glycaemic control with baPWV values in HD patients demonstrated that GA, but not HbA1c or PG, was an independent factor that was significantly associated in a positive manner with baPWV in HD patients. CONCLUSION It was suggested that poor glycaemic control, as reflected by increased GA values, might be associated with increased arterial stiffening in HD patients.
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Affiliation(s)
- Yasuro Kumeda
- Department of Metabolism, Endocrinology and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
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Haider DG, Fuhrmann H, Kovarik J, Heiss S, Graf H, Auinger M, Mittermayer F, Wolzt M, Hörl WH. Postprandial intradialytic dysglycaemia and diabetes in maintenance haemodialysis patients. Eur J Clin Invest 2008; 38:721-7. [PMID: 18837797 DOI: 10.1111/j.1365-2362.2008.02012.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Although the risk of developing dysglycaemia has been investigated in different communities this incidence is poorly studied in patients on maintenance haemodialysis (MHD). MATERIALS AND METHODS In a multicentre observational cohort study the occurrence of dysglycaemia was assessed in 239 primary normoglycaemic end stage renal disease (ERSD) patients on MHD. Dysglycaemia (fasting blood glucose > 110 mg dL(-1), > 140 mg dL(-1) 2 h after food intake) or diabetes (fasting blood glucose > 126 mg dL(-1) or > 200 mg dL(-1) at any time) were defined according to WHO criteria and cases were compared with age matched controls within the cohort. RESULTS Dysglycaemia was found in 82 primary normoglycaemic ESRD patients (34%) within 31 months after initiation of MHD. In 31 of these patients type 2 diabetes was diagnosed. When compared with matched control MHD patients differences in body mass index (BMI), HbA1c and postprandial blood glucose were detectable (P < 0.05). Increments in 0.1% of HbA1c were related with 11% higher odds for dysglycaemia (P = 0.002). In a subgroup of 36 primary normoglycaemic MHD patients who developed dysglycaemia event-free survival was 64%, 53%, 31%, 17% and 11% after 1, 2, 3, 4 and 5 years of haemodialysis treatment. CONCLUSION Onset of dysglycaemia or diabetes is frequent in ESRD patients after onset of chronic haemodialysis. Routine measurement of blood glucose before and after haemodialysis should be implemented as a standard of care during MHD.
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Affiliation(s)
- D G Haider
- Medical University of Vienna, Division of Nephrology and Dialysis, Vienna, Austria
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Kovesdy CP, Sharma K, Kalantar-Zadeh K. Glycemic Control in Diabetic CKD Patients: Where Do We Stand? Am J Kidney Dis 2008; 52:766-77. [DOI: 10.1053/j.ajkd.2008.04.011] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2008] [Accepted: 04/01/2008] [Indexed: 11/11/2022]
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Abstract
Diabetes mellitus (DM) is the main cause of end-stage renal disease (ESRD). Conversely, chronic renal failure (CRF) is also associated with diverse alterations in carbohydrate and insulin metabolism. CRF-induced metabolic disorders should be borne in mind when treating diabetic patients, to ensure the introduction of adequate therapy adjustments that are in line with the onset of renal function decline. Moreover, several specific therapies employed in CRF may also influence pharmacological therapy of DM in uraemic patients. Adequate glycaemic control has also been associated with a reduction in the onset and progression of diabetic nephropathy as well as in the morbidity and mortality in uraemic diabetic patients during dialysis. Intensive insulin therapy can notably improve glycemic control and it should be considered part of the management of insulin-treated CRF diabetic patients. Insulin analogues have been recently evaluated in CRF diabetic patients, with encouraging results. In this study, we review the more relevant aspects related to insulin therapy in diabetic patients with different degrees of renal failure and in patients with ESRD, both in conservative therapy and dialysis.
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Affiliation(s)
- Pedro Iglesias
- Department of Endocrinology, Hospital General, Segovia, Spain.
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Yamada S, Inaba M, Shidara K, Okada S, Emoto M, Ishimura E, Nishizawa Y. Association of glycated albumin, but not glycated hemoglobin, with peripheral vascular calcification in hemodialysis patients with type 2 diabetes. Life Sci 2008; 83:516-9. [PMID: 18760286 DOI: 10.1016/j.lfs.2008.08.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Revised: 07/22/2008] [Accepted: 08/02/2008] [Indexed: 11/20/2022]
Abstract
AIMS Elevated HbA(1C) is a predictor of mortality as well as peripheral vascular calcification in hemodialysis (HD) patients with diabetes. However, improved glycemic control as reflected by reduction in HbA(1C) may dismiss the relationship between HbA(1C) and mortality in those patients, due possibly to the underestimation of HbA(1C) by erythropoietin use. This study was to establish the significance of glycated albumin (GA) as a useful marker of peripheral vascular calcification in diabetic HD patients, in comparison with HbA(1C). MAIN METHODS We examined 49 HD patients with type 2 diabetes (37 men and 12 women). Peripheral vascular calcification at hand arteries was checked on a simple X-ray photograph. GA and HbA(1C) were determined just before HD session. KEY FINDINGS The prevalence of peripheral vascular calcification was significantly higher in diabetic patients (65.3%) than in non-diabetic patients (27.0%). Multiple regression analyses in diabetic patients showed that both HD duration and GA were significantly associated with the presence of peripheral vascular calcification. When GA was replaced by HbA(1C) in the same model, HbA(1C) failed to show a significant association. However, when a weekly dose of erythropoietin was simultaneously included in addition to HD duration and HbA(1C), both HbA(1C) as well as HD duration emerged as a significant factor associated with the presence of peripheral vascular calcification. SIGNIFICANCE The present study suggested that GA might be a better indicator of glycemic control, and raise the possibility that improvement of glycemic control might prevent against the development of peripheral vascular calcification in diabetic HD patients.
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Affiliation(s)
- Shinsuke Yamada
- Department of Metabolism, Endocrinology and Molecular Medicine, Internal Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
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Rajashekar A, Perazella MA, Crowley S. Systemic Diseases with Renal Manifestations. Prim Care 2008; 35:297-328, vi-vii. [DOI: 10.1016/j.pop.2008.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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