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Iorga RE, Costin D, Munteanu-Dănulescu RS, Rezuș E, Moraru AD. Non-Invasive Retinal Vessel Analysis as a Predictor for Cardiovascular Disease. J Pers Med 2024; 14:501. [PMID: 38793083 PMCID: PMC11122007 DOI: 10.3390/jpm14050501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
Cardiovascular disease (CVD) is the most frequent cause of death worldwide. The alterations in the microcirculation may predict the cardiovascular mortality. The retinal vasculature can be used as a model to study vascular alterations associated with cardiovascular disease. In order to quantify microvascular changes in a non-invasive way, fundus images can be taken and analysed. The central retinal arteriolar (CRAE), the venular (CRVE) diameter and the arteriolar-to-venular diameter ratio (AVR) can be used as biomarkers to predict the cardiovascular mortality. A narrower CRAE, wider CRVE and a lower AVR have been associated with increased cardiovascular events. Dynamic retinal vessel analysis (DRVA) allows the quantification of retinal changes using digital image sequences in response to visual stimulation with flicker light. This article is not just a review of the current literature, it also aims to discuss the methodological benefits and to identify research gaps. It highlights the potential use of microvascular biomarkers for screening and treatment monitoring of cardiovascular disease. Artificial intelligence (AI), such as Quantitative Analysis of Retinal vessel Topology and size (QUARTZ), and SIVA-deep learning system (SIVA-DLS), seems efficient in extracting information from fundus photographs and has the advantage of increasing diagnosis accuracy and improving patient care by complementing the role of physicians. Retinal vascular imaging using AI may help identify the cardiovascular risk, and is an important tool in primary cardiovascular disease prevention. Further research should explore the potential clinical application of retinal microvascular biomarkers, in order to assess systemic vascular health status, and to predict cardiovascular events.
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Affiliation(s)
- Raluca Eugenia Iorga
- Department of Surgery II, Discipline of Ophthalmology, “Grigore T. Popa” University of Medicine and Pharmacy, Strada Universitatii No. 16, 700115 Iași, Romania; (R.E.I.); (A.D.M.)
| | - Damiana Costin
- Doctoral School, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania
| | | | - Elena Rezuș
- Department of Internal Medicine II, Discipline of Reumathology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania;
| | - Andreea Dana Moraru
- Department of Surgery II, Discipline of Ophthalmology, “Grigore T. Popa” University of Medicine and Pharmacy, Strada Universitatii No. 16, 700115 Iași, Romania; (R.E.I.); (A.D.M.)
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Gui SY, Wang XC, Qiao JC, Lin SY, Wang QQ, Zhang MY, Xu YY, Huang ZH, Tao LM, Hu CY, Tao FB, Jiang ZX, Liu DW. Association of retinopathy with risk of all-cause and specific-cause mortality in the National Health and Nutrition Examination Survey, 2005 to 2008. Front Public Health 2023; 11:1200925. [PMID: 37680275 PMCID: PMC10482412 DOI: 10.3389/fpubh.2023.1200925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 08/09/2023] [Indexed: 09/09/2023] Open
Abstract
Objective This study aimed to elucidate the relationship between retinopathy status or severity and the all-cause and specific-cause mortality risk based on the updated National Health and Nutrition Examination Survey (NHANES) database and 2019 Public Access Link mortality file. Methods In this prospective cohort study, a total of 6,797 participants aged over 40 years based on NHANES 2005-2008 were analyzed. The severity of retinopathy was classified into 4 grades-no retinopathy, mild non-proliferative retinopathy (NPR), moderate to severe NPR, and proliferative retinopathy (PR). Multiple covariate-adjusted Cox proportional hazards regression models and Fine and Gray competing risk regression models were used to assess the all-cause and cause-specific mortality risks, respectively. The propensity score matching (PSM) approach was also applied additionally to adequately balance between-group covariates to validate our findings. Results A final total of 4,808 participants representing 18,282,772 United States (US) non-hospitalized participants were included for analysis, 50.27% were male (n = 2,417), 55.32% were non-hispanic white (n = 2,660), and mean [SE] age, 56.10 [0.40] years. After a median follow-up of 12.24 years (interquartile range, 11.16-13.49 years), 1,164 participants died of all-cause mortality, of which 941 (80.84%) died without retinopathy and 223 (19.16%) died with retinopathy at baseline. The presence of retinopathy was associated with increased all-cause mortality, cardiovascular disease (CVD), and diabetes mellitus (DM)-specific mortality, and the results remain consistent after PSM. Severity analysis showed that only mild NPR was associated with an increased all-cause mortality risk (hazard ratio (HR) = 2.01; 95% confidence interval (CI), 1.00-4.03), while increased CVD and DM-specific mortality risk were associated with all grades of retinopathy and were exponentially greater with increasing retinopathy severity, and the trend test was also significant (P for trend 0.004 and 0.04, respectively). Discussion Our findings suggest that the diagnosis of retinopathy is an independent risk factor for all-cause mortality in people over 40 years old. Retinopathy grading is significantly associated with the survival risk of patients with CVD or DM, it can be a valuable predictor in the stratified management and risk warning of CVD or DM patients, as well as in the monitoring of systemic vasculopathy status.
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Affiliation(s)
- Si-Yu Gui
- Department of Ophthalmology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xin-Chen Wang
- Department of Ophthalmology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jian-Chao Qiao
- Department of Clinical Medicine, The Second School of Clinical Medicine, Anhui Medical University, Hefei, China
| | - Si-Yu Lin
- Department of Ophthalmology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Qian-Qian Wang
- Department of Ophthalmology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Meng-Yue Zhang
- Department of Clinical Medicine, The First School of Clinical Medicine, Anhui Medical University, Hefei, China
| | - Yue-Yang Xu
- Department of Clinical Medicine, The First School of Clinical Medicine, Anhui Medical University, Hefei, China
| | - Zhi-Hao Huang
- Department of Clinical Medicine, The Second School of Clinical Medicine, Anhui Medical University, Hefei, China
| | - Li-Ming Tao
- Department of Ophthalmology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Cheng-Yang Hu
- Department of Humanistic Medicine, School of Humanistic Medicine, Anhui Medical University, Hefei, China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Fang-Biao Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, Hefei, Anhui, China
| | - Zheng-Xuan Jiang
- Department of Ophthalmology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Dong-Wei Liu
- Department of Ophthalmology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
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Hypertensive Retinopathy and All-Cause Mortality in Older Adults of Amerindian Ancestry. A Population-based Longitudinal Prospective Study. High Blood Press Cardiovasc Prev 2021; 28:613-618. [PMID: 34709584 PMCID: PMC8552426 DOI: 10.1007/s40292-021-00481-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/21/2021] [Indexed: 11/04/2022] Open
Abstract
Introduction Hypertensive retinopathy (HTRP) predicts all-cause mortality in Asian and Caucasian populations. However, little is known about HTRP impact in other ethnic groups. Aim We sought to estimate the mortality risk according to HTRP severity in older adults of Amerindian ancestry living in rural Ecuador. Methods This prospective study enrolled individuals aged ≥ 60 years with baseline blood pressure ≥ 120/≥ 80 mmHg from the ongoing Atahualpa Project cohort who received retinal photographs (for HTRP grading) and a brain MRI. We ascertained all-cause mortality after a mean of 5.2 ± 1.2 years of follow-up. Cox-proportional hazards models adjusted for demographics, cardiovascular risk factors, neuroimaging signatures of cerebral small vessel disease, blood pressure determinations during follow-up and incident strokes, were obtained to estimate mortality risk according to HTRP severity. Results Analysis included 236 participants (mean age 69.3 ± 7.3 years). HTRP Grade 2 or higher was determined in 42 (18%) individuals. Fifty participants (21%) died during the follow-up, resulting in an overall unadjusted crude mortality rate of 4.1 per 100 person-years. Mortality rate in subjects with HTRP Grade 2 or higher was 7.2 and in those with no HTRP or Grade 1 only was 3.4 per 100 person-years. An adjusted Cox-proportional hazard model showed that individuals with HTRP Grade 2 or higher maintained a greater than two-fold mortality risk (HR 2.08; 95% C.I. 1.04–4.15; p = 0.038) when compared to those with no HTRP or Grade 1 only. Conclusion Study results show that HTRP severity predicts mortality in this population of older adults.
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Zhu Z, Shang X, Wang W, Ha J, Chen Y, He J, Yang X, He M. Impact of Retinopathy and Systemic Vascular Comorbidities on All-Cause Mortality. Front Endocrinol (Lausanne) 2021; 12:750017. [PMID: 34867793 PMCID: PMC8637619 DOI: 10.3389/fendo.2021.750017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 11/01/2021] [Indexed: 12/02/2022] Open
Abstract
PURPOSE To assess the impact of retinopathy and systemic vascular comorbidities on the all-cause mortality in a representative U.S. sample. METHODS A total of 5703 participants (≥40 years old) from the 2005-2008 National Health and Nutrition Examination Survey. The Early Treatment Diabetic Retinopathy Study grading scale was used to evaluate the retinopathy status. Systemic vascular comorbidities included diabetes mellitus (DM), high blood pressure (HBP), chronic kidney disease (CKD) and cardiovascular disease (CVD). Time to death was calculated as the time from baseline to either the date of death or censoring (December 31st, 2015), whichever came first. Risks of mortality were estimated using Cox proportional hazards models after adjusting for confounders and vascular comorbidities. RESULTS After a median follow-up of 8.33 years (IQR: 7.50-9.67 years), there were 949 (11.8%) deaths from all causes. After adjusting for confounders, the presence of retinopathy predicted higher all-cause mortality (hazard ratio (HR), 1.41; 95% confidence interval (CI), 1.08-1.83). The all-cause mortality among participants with both retinopathy and systemic vascular comorbidities including DM (HR, 1.72; 95% CI, 1.21-2.43), HBP (HR, 1.47; 95% CI, 1.03-2.10), CKD (HR, 1.73; 95% CI, 1.26-2.39) and CVD (HR, 1.92; 95% CI, 1.21-3.04) was significantly higher than that among those without either condition. When stratified by diabetic or hypertension status, the co-occurrence of retinopathy and CKD or CVD further increased the all-cause mortality compared to those without either condition. CONCLUSIONS The co-occurrence of retinopathy and systemic vascular conditions predicted a further increase in the risk of mortality. More extensive vascular risk factor assessment and management are needed to detect the burden of vascular pathologies and improve long-term survival in individuals with retinopathy.
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Affiliation(s)
- Zhuoting Zhu
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xianwen Shang
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Ophthalmology, Department of Surgery, Centre for Eye Research Australia, University of Melbourne, Melbourne, VIC, Australia
| | - Wei Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Jason Ha
- Ophthalmology, Department of Surgery, Centre for Eye Research Australia, University of Melbourne, Melbourne, VIC, Australia
| | - Yifan Chen
- Medical Sciences Division, University of Oxford, Oxford, United Kingdom
| | - Jingyi He
- Zhongshan School of Medicine, Sun Yat-sen Universtiy, Guangzhou, China
| | - Xiaohong Yang
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- *Correspondence: Mingguang He, ; Xiaohong Yang,
| | - Mingguang He
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Ophthalmology, Department of Surgery, Centre for Eye Research Australia, University of Melbourne, Melbourne, VIC, Australia
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Mingguang He, ; Xiaohong Yang,
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Takao T, Suka M, Yanagisawa H, Kasuga M. Combined effect of diabetic retinopathy and diabetic kidney disease on all-cause, cancer, vascular and non-cancer non-vascular mortality in patients with type 2 diabetes: A real-world longitudinal study. J Diabetes Investig 2020; 11:1170-1180. [PMID: 32267626 PMCID: PMC7477514 DOI: 10.1111/jdi.13265] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 03/16/2020] [Accepted: 03/29/2020] [Indexed: 12/22/2022] Open
Abstract
AIMS/INTRODUCTION We assessed the relationship between diabetic retinopathy (DR) and/or diabetic kidney disease (DKD) according to their severity and all-cause, cancer, vascular and non-cancer non-vascular mortality in real-world patients with type 2 diabetes. MATERIALS AND METHODS A total of 1,902 patients with type 2 diabetes were enrolled from 1995 to 1999 and followed to 2017. At baseline, DR was diagnosed in 374 patients, DKD in 529, vision-threatening DR in 123 and advanced DKD in 287. Patients were classified by the status of DR and DKD. Multivariate Cox regression analysis was carried out. RESULTS There were 266 deaths during a median follow-up period of 18.6 years. Among these, 92 were from cancer, 78 were from vascular causes and 82 were from non-cancer non-vascular causes. DR and/or DKD predicted all-cause, vascular and non-cancer non-vascular mortality, but not cancer mortality. Similarly, vision-threatening DR and/or advanced DKD predicted all-cause, vascular and non-cancer non-vascular mortality, but not cancer mortality. Hazard ratios for all-cause, vascular and non-cancer non-vascular mortality were highest in the DR(+)DKD(+) group, and higher in the DR(-)DKD(+) and the DR(+)DKD(-) groups than in the DR(-)DKD(-) group. The results for vision-threatening DR and advanced DKD were similar. The interaction for non-cancer non-vascular mortality, but not all-cause and vascular mortality, between DR and DKD and between vision-threatening DR and advanced DKD might be significant. CONCLUSIONS DR and DKD may be jointly and independently associated with all-cause, vascular and non-cancer non-vascular mortality, but not cancer mortality, according to their severity in real-world patients with type 2 diabetes.
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Affiliation(s)
- Toshiko Takao
- Division of Diabetes and Metabolism, The Institute for Adult Diseases, Asahi Life Foundation, Tokyo, Japan
| | - Machi Suka
- Department of Public Health and Environmental Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyuki Yanagisawa
- Department of Public Health and Environmental Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Masato Kasuga
- Division of Diabetes and Metabolism, The Institute for Adult Diseases, Asahi Life Foundation, Tokyo, Japan
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Chillo P, Ismail A, Sanyiwa A, Ruggajo P, Kamuhabwa A. Hypertensive retinopathy and associated factors among nondiabetic chronic kidney disease patients seen at a tertiary hospital in Tanzania: a cross-sectional study. Int J Nephrol Renovasc Dis 2019; 12:79-86. [PMID: 31118738 PMCID: PMC6503192 DOI: 10.2147/ijnrd.s196841] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/26/2019] [Indexed: 11/23/2022] Open
Abstract
Background: Hypertensive retinopathy is a known marker of cardiovascular disease, and among unselected patients with chronic kidney disease (CKD) more severe retinopathy has been associated with lower estimated glomerular filtration rate (eGFR). This association has, however, not been widely studied among nondiabetic hypertensive patients with CKD, especially in sub-Saharan Africa. We aimed to determine the prevalence and severity of hypertensive retinopathy and its relationship with eGFR among nondiabetic CKD patients seen at Muhimbili National Hospital in Dar es Salaam, Tanzania. Methods: A hospital-based cross-sectional study was conducted among nondiabetic CKD adult (≥18 years) patients with hypertension. A structured questionnaire was used to record patients' demographic characteristics and their cardiovascular risk profile. eGFR was calculated using the Modification of Diet in the Renal Disease (MDRD) equation and only patients with CKD stage 3 or more were enrolled in the study. Grading of retinopathy was done using the Keith-Wagener classification. Results: In total, 224 patients fulfilled the inclusion criteria and were enrolled. Their mean age was 45.8±14.1 years, and 59.4% were men. The proportions of patients with stage 3, 4, and 5 CKD were 21.4%, 19.6%, and 58.9%, respectively. Hypertensive retinopathy was present in 157 (70.1%) patients and the proportions with grade I, grade II, grade III, and grade IV retinopathy were 17.9%, 18.8%, 19.6%, and 13.8%, respectively. The severity of retinopathy increased with decreasing levels of eGFR, and in multivariate logistic regression analysis, factors found to be independently associated with ≥grade II hypertensive retinopathy were more severe CKD, higher hypertension grades, and alcohol use, all p<0.05. Conclusion: The prevalence of hypertensive retinopathy is high among nondiabetic CKD patients seen at a tertiary hospital in Tanzania and is independently associated with CKD severity. Retinopathy grade can be used as a marker of CKD severity among these patients.
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Affiliation(s)
- Pilly Chillo
- Department of Internal Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Ame Ismail
- Department of Internal Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Anna Sanyiwa
- Department of Ophthalmology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Paschal Ruggajo
- Department of Internal Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Appolinary Kamuhabwa
- Department of Clinical Pharmacy and Pharmacology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
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Pavkov ME, Harding JL, Chou CF, Saaddine JB. Prevalence of Diabetic Retinopathy and Associated Mortality Among Diabetic Adults With and Without Chronic Kidney Disease. Am J Ophthalmol 2019; 198:200-208. [PMID: 30691612 DOI: 10.1016/j.ajo.2018.10.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 10/16/2018] [Accepted: 10/18/2018] [Indexed: 01/27/2023]
Abstract
PURPOSE To estimate prevalence and severity of diabetic retinopathy (DR) among U.S. adults with diabetes and with or without chronic kidney disease (CKD), and assess associated risk of mortality. DESIGN Cross-sectional study with national survey data. METHODS The cohort included adults ≥40 years old with diabetes in the National Health and Nutrition Examination Surveys (NHANES) 2005-2008. Vital status was determined through December 31, 2011. We defined diabetes as hemoglobin A1c ≥6.5% or self-report and CKD by urinary albumin/creatinine ≥30 mg/g or glomerular filtration rate <60 mL/min/1.73 m2. The main outcomes were DR and mortality. RESULTS Prevalence of DR was 27.8% (95% CI 24.3-31.7), 36.2% (95%CI 30.1-42.7), and 23.4% (95% CI 19.2-28.1), overall, with and without CKD. Prevalence of vision-threatening DR was 4.2% (95% CI 3.2-5.5), 8.2% (95% CI 5.4-12.2), and 2.0% (95% CI 1.2-3.5), respectively. In a multivariable adjusted model, DR was positively but nonsignificantly associated with CKD (OR = 1.1, 95% CI 0.7-1.7), was 40% higher per 1% increase in hemoglobin A1c (OR = 1.4, 95% CI 1.1-1.6), was 30% higher per 5 years additional diabetes duration (OR = 1.3, 95% CI 1.1-1.5), was 30% higher per 10 mm Hg increase in systolic blood pressure (OR = 1.3, 95% CI 1.1-1.5), and was 6-fold higher with insulin treatment (OR = 6.2, 95% CI 2.6-14.8). Compared with diabetic participants with neither DR nor CKD, those with DR and CKD had a 3.6-fold (95% CI 1.5-9.1) increased adjusted risk for all-cause mortality. CONCLUSIONS Over one third of persons with diabetes and CKD had DR. The risk of death was higher with than without CKD and DR. Many of the studied risk factors associated with DR are modifiable.
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Fauchier L, Bodin A, Bisson A. Editorial commentary: The CHA 2DS 2VASc score and its black and white items. Trends Cardiovasc Med 2018; 29:392-393. [PMID: 30509502 DOI: 10.1016/j.tcm.2018.11.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 11/18/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Laurent Fauchier
- Service de Cardiologie, Centre Hospitalier Universitaire Trousseau et Faculté de Médecine, Université François Rabelais, 37044 Tours, France.
| | - Alexandre Bodin
- Service de Cardiologie, Centre Hospitalier Universitaire Trousseau et Faculté de Médecine, Université François Rabelais, 37044 Tours, France
| | - Arnaud Bisson
- Service de Cardiologie, Centre Hospitalier Universitaire Trousseau et Faculté de Médecine, Université François Rabelais, 37044 Tours, France
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Pongrac Barlovic D, Harjutsalo V, Gordin D, Kallio M, Forsblom C, King G, Groop PH. The Association of Severe Diabetic Retinopathy With Cardiovascular Outcomes in Long-standing Type 1 Diabetes: A Longitudinal Follow-up. Diabetes Care 2018; 41:2487-2494. [PMID: 30257963 PMCID: PMC6973548 DOI: 10.2337/dc18-0476] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 08/22/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE It is well established that diabetic nephropathy increases the risk of cardiovascular disease (CVD), but how severe diabetic retinopathy (SDR) impacts this risk has yet to be determined. RESEARCH DESIGN AND METHODS The cumulative incidence of various CVD events, including coronary heart disease (CHD), peripheral artery disease (PAD), and stroke, retrieved from registries, was evaluated in 1,683 individuals with at least a 30-year duration of type 1 diabetes drawn from the Finnish Diabetic Nephropathy Study (FinnDiane). The individuals were divided into four groups according to the presence of diabetic kidney disease (DKD) and/or SDR (+DKD/+SDR, +DKD/-SDR, -DKD/+SDR, and -DKD/-SDR) at baseline visit. Furthermore, age-specific incidences were compared with 4,016 control subjects without diabetes. SDR was defined as laser photocoagulation and DKD as estimated glomerular filtration rate <60 mL/min/1.73 m2. RESULTS During 12,872 person-years of follow-up, 416 incident CVD events occurred. Even in the absence of DKD, SDR increased the risk of any CVD (hazard ratio 1.46 [95% CI 1.11-1.92]; P < 0.01), after adjustment for diabetes duration, age at diabetes onset, sex, smoking, blood pressure, waist-to-hip ratio, history of hypoglycemia, and serum lipids. In particular, SDR alone was associated with the risk of PAD (1.90 [1.13-3.17]; P < 0.05) and CHD (1.50 [1.09-2.07; P < 0.05) but not with any stroke. Moreover, DKD increased the CVD risk further (2.85 [2.13-3.81]; P < 0.001). However, the risk was above that of the control subjects without diabetes also in patients without microvascular complications, until the patients reached their seventies. CONCLUSIONS SDR alone, even without DKD, increases cardiovascular risk, particularly for PAD, independently of common cardiovascular risk factors in long-standing type 1 diabetes. More remains to be done to fully understand the link between SDR and CVD. This knowledge could help combat the enhanced cardiovascular risk beyond currently available regimens.
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Affiliation(s)
- Drazenka Pongrac Barlovic
- University Medical Center Ljubljana, Ljubljana, Slovenia.,Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Valma Harjutsalo
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland.,Diabetes and Obesity, Research Programs Unit, University of Helsinki, Helsinki, Finland.,The Chronic Disease Prevention Unit, National Institute for Health and Welfare, Helsinki, Finland
| | - Daniel Gordin
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland.,Diabetes and Obesity, Research Programs Unit, University of Helsinki, Helsinki, Finland.,Research Division, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Milla Kallio
- Department of Vascular Surgery, Helsinki University Central Hospital, Helsinki, Finland
| | - Carol Forsblom
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland.,Diabetes and Obesity, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - George King
- Research Division, Joslin Diabetes Center, Harvard Medical School, Boston, MA
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Li YH, Sheu WHH, Lee IT. Effects of retinopathy and chronic kidney disease on long-term mortality in type 2 diabetic inpatients with normal urinary albumin or protein: a retrospective cohort study. BMJ Open 2018; 8:e021655. [PMID: 30049696 PMCID: PMC6067336 DOI: 10.1136/bmjopen-2018-021655] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE Normoalbuminuric chronic kidney disease (NA-CKD) is recognised as a distinct phenotype of diabetic kidney disease, but the role of diabetic retinopathy (DR) in predicting long-term mortality among these patients remains unclear. Here, we aimed to investigate the effects of DR and CKD on mortality in type 2 diabetic patients with normoalbuminuria. DESIGN We conducted this study as a retrospective cohort study. SETTING We collected clinical information from the medical records of a public medical centre in central Taiwan. PARTICIPANTS Patients with type 2 diabetes (n=665) who were hospitalised due to poor glucose control were consecutively enrolled and followed for a median of 6.7 years (IQR 4.1‒9.6 years). Patients with either urinary protein excretion >150 mg/day or urine albumin excretion >30 mg/day were excluded. PRIMARY OUTCOME MEASURE All-cause mortality served as the primary follow-up outcome, and the mortality data were obtained from the national registry in Taiwan. RESULTS The patients with CKD and DR showed the highest mortality rate (log-rank p<0.001). The risks of all-cause mortality (HR 2.263; 95% CI 1.551 to 3.302) and cardiovascular mortality (HR 2.471; 95% CI 1.421 to 4.297) were significantly greater in patients with CKD and DR than in those without CKD or DR, after adjusting for the associated risk factors. CONCLUSIONS DR is an independent predictor for all-cause and cardiovascular mortality in type 2 diabetic inpatients with normoalbuminuria. Moreover, DR with CKD shows the highest risks of all-cause and cardiovascular mortality among these patients. Funduscopy screening can provide additive information on mortality in patients with type 2 diabetes, even among those with NA-CKD.
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Affiliation(s)
- Yu-Hsuan Li
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Wayne H-H Sheu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - I-Te Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
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Lasalvia P, Baquero L, Otálora-Esteban M, Castañeda-Cardona C, Rosselli D. Cost Effectiveness of Dulaglutide Compared with Liraglutide and Glargine in Type 2 Diabetes Mellitus Patients in Colombia. Value Health Reg Issues 2017; 14:35-40. [PMID: 29254540 DOI: 10.1016/j.vhri.2016.10.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 09/04/2016] [Accepted: 10/28/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND Diabetes treatment includes very diverse drugs. It is essential to identify which drugs offer the best value for their costs. OBJECTIVES To estimate comparative cost effectiveness for treating diabetes mellitus with dulaglutide, liraglutide, or glargine in Colombia. METHODS A Markov model including diabetic microvascular and macrovascular complications was used to estimate cost-effectiveness. We used annual cycles, a 5-year time horizon, 5% discount rate, and third-party payer's perspective. Main outcomes were quality-adjusted life-years (QALYs) and incremental cost-effectiveness ratios (ICERs). Transition probabilities were obtained from primary studies and costs from local databases and studies. We used a threshold of 3 times the Colombian per capita gross domestic product (US $17,270 for 2015; US $1 = 2,743 Columbian pesos) to assess cost effectiveness. RESULTS Total costs related to dulaglutide, liraglutide, and glargine were US $8,633, US $10,756, and US $5,783, yielding 3.311 QALYs, 3.229 QALYs, and 3.156 QALYs, respectively. Dulaglutide dominated liraglutide given lower total costs and higher QALYs. The estimated ICER for dulaglutide compared with glargine was US $18,385, greater than the accepted threshold. Sensibility analysis shows that decreased dulaglutide cost, increased consumption of glargine, nondaily injection, and number and cost of glucometry could result in ICERs lower than the threshold. Probabilistic sensitivity analysis showed consistent results. CONCLUSIONS This estimation indicates that dulaglutide dominates liraglutide. Its ICER is, however, greater than the accepted threshold for Colombia in base case compared with glargine. By increasing population weight or glargine consumption, dulaglutide becomes cost effective compared with glargine, which could identify a niche where dulaglutide is the best option.
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Affiliation(s)
| | - Laura Baquero
- Pontificia Universidad Javeriana, Medical School, Bogota, Colombia
| | | | | | - Diego Rosselli
- Clinical Epidemiology and Biostatistics Department, Pontificia Universidad Javeriana, Medical School, Bogota, Colombia.
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12
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Mehta R, Hodakowski A, Cai X, Lee KE, Kestenbaum BR, de Boer IH, Fawzi A, Wong TY, Ix J, Klein B, Klein R, Isakova T. Serum Phosphate and Retinal Microvascular Changes: The Multi-Ethnic Study of Atherosclerosis and the Beaver Dam Eye Study. Ophthalmic Epidemiol 2017; 24:371-380. [PMID: 28402694 DOI: 10.1080/09286586.2017.1304562] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE Higher levels of serum phosphate are strongly linked to increased risk of cardiovascular disease and therapies aimed to lower serum phosphate are employed in the management of patients with chronic kidney disease (CKD). Data are limited, however, on serum phosphate as a risk factor for microvascular disease in community-based populations. It is important to determine the impact of novel risk factors, such as phosphate, on the microvasculature. METHODS We conducted a prospective study of 3919 individuals in the Multi-Ethnic Study of Atherosclerosis (MESA) and 3544 individuals in the Beaver Dam Eye Study (BDES) to test the associations of serum phosphate with retinopathy and retinal vessel caliber, and change in retinopathy severity and change in retinal vessel caliber. RESULTS Mean (standard deviation) serum phosphate was 3.66 (0.52) mg/dl in the MESA and 3.77 (0.55) mg/dl in the BDES. In multivariable adjusted models, phosphate was significantly associated with prevalent retinopathy in the MESA (Odds Ratio [OR] per 1 mg/dl increase in phosphate, 1.22; Confidence Interval [CI] 1.02-1.47) and the BDES (OR 1.06; CI 1.01-1.11). In stratified analyses, these relationships were even stronger and only seen in individuals with diabetes in both the MESA (OR 1.81; CI 1.30-2.53) and the BDES (OR 1.16; CI 1.05-1.29). Phosphate was not associated with incident or change in retinopathy severity, nor any retinal caliber outcome. CONCLUSIONS Among community-living individuals with low prevalence of CKD, higher serum phosphate was associated with prevalent retinopathy in individuals with diabetes. Further longitudinal assessments in patients with diabetes necessitate further investigation.
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Affiliation(s)
- Rupal Mehta
- a Division of Nephrology , Northwestern University Feinberg School of Medicine , Chicago , IL , USA.,b Center for Translational Metabolism and Health, Institute of Public Health and Medicine, Northwestern University Feinberg School of Medicine , Chicago , IL , USA.,c Jesse Brown Veterans Administration Medical Center , Division of Nephrology , Chicago , IL , USA
| | - Alexander Hodakowski
- b Center for Translational Metabolism and Health, Institute of Public Health and Medicine, Northwestern University Feinberg School of Medicine , Chicago , IL , USA
| | - Xuan Cai
- b Center for Translational Metabolism and Health, Institute of Public Health and Medicine, Northwestern University Feinberg School of Medicine , Chicago , IL , USA
| | - Kris E Lee
- d Ocular Epidemiology Research Group, University of Wisconsin-Madison , Madison , WI , USA
| | - Bryan R Kestenbaum
- e Division of Nephrology , University of Washington , Seattle , WA , USA
| | - Ian H de Boer
- e Division of Nephrology , University of Washington , Seattle , WA , USA
| | - Amani Fawzi
- f Department of Ophthalmology , Northwestern University Feinberg School of Medicine , Chicago , IL , USA
| | - Tien Yin Wong
- g Vitreo-Retinal Department , Singapore National Eye Centre , Singapore , Singapore
| | - Joachim Ix
- h Division of Nephrology , University of California San Diego School of Medicine , San Diego , CA , USA
| | - Barbara Klein
- d Ocular Epidemiology Research Group, University of Wisconsin-Madison , Madison , WI , USA
| | - Ronald Klein
- d Ocular Epidemiology Research Group, University of Wisconsin-Madison , Madison , WI , USA
| | - Tamara Isakova
- a Division of Nephrology , Northwestern University Feinberg School of Medicine , Chicago , IL , USA.,b Center for Translational Metabolism and Health, Institute of Public Health and Medicine, Northwestern University Feinberg School of Medicine , Chicago , IL , USA
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Jain RB. Trends in the levels of urine and serum creatinine: data from NHANES 2001-2014. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:10197-10204. [PMID: 28265873 DOI: 10.1007/s11356-017-8709-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 02/27/2017] [Indexed: 06/06/2023]
Abstract
Data from the National Health and Nutrition Examination Survey were used to study trends for urine and serum creatinine over 2001-2014 for those aged ≥20 years. In the absence of chronic kidney disease, levels of urine creatinine decreased for the total population, for those aged 20-29, 50-59, and ≥70 years, for males, and for Mexican Americans and other race/ethnicities. Levels of serum cotinine also exhibited a decreasing trend over 2001-2014 for the total population, for those aged 20-29 and 40-49 years, for females, and for non-Hispanic whites and Mexican Americans. In general, levels of serum creatinine and urine creatinine were positively correlated for chronic kidney disease stages 1-3 and negatively correlated for chronic kidney disease stages 4 and 5.
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Affiliation(s)
- Ram B Jain
- , 2959 Estate View Court, Dacula, GA, 30019, USA.
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14
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Hsieh YM, Lee WJ, Sheu WHH, Li YH, Lin SY, Lee IT. Inpatient screening for albuminuria and retinopathy to predict long-term mortality in type 2 diabetic patients: a retrospective cohort study. Diabetol Metab Syndr 2017; 9:29. [PMID: 28473872 PMCID: PMC5415718 DOI: 10.1186/s13098-017-0229-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 04/26/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND There is a high hospitalization rate for diabetic patients. Since retinopathy and albuminuria are both important manifestations of microvascular disease in diabetes, our aim was to investigate the effect of retinopathy and albuminuria on long-term mortality in type 2 diabetic inpatients through this observational cohort study. METHODS Type 2 diabetic inpatients given a primary diagnosis of poor glucose control were consecutively enrolled during their hospitalization periods. Clinical information was collected through review of each patient's medical records, and mortality data were obtained from the national registry in Taiwan. RESULTS A total of 761 type 2 diabetic inpatients were enrolled in the study with a median follow-up period of 6.6 years (interquartile range, 4.0-9.6 years). Patients in the Albuminuria(-)/Retinopathy(+), Albuminuria(+)/Retinopathy(-) and Albuminuria(+)/Retinopathy(+) groups had significantly higher risks of all-cause mortality and cardiovascular mortality than those in the Albuminuria(-)/Retinopathy(-) group. However, among patients with albuminuria, there was no significant difference in cumulative mortality between those with and without retinopathy (P = 0.821). A decrease in the estimated glomerular filtration rate (eGFR), but not retinopathy, was an independent predictor of all-cause mortality (95% CI 0.647‒0.893; P < 0.001) and cardiovascular mortality (95% CI 0.564‒0.921; P = 0.009) in type 2 diabetic inpatients with albuminuria. CONCLUSIONS Albuminuria in type 2 diabetic inpatients is a strong predictor of long-term mortality after discharge from the hospital. Retinopathy is an independent predictor of mortality in type 2 diabetic inpatients without albuminuria but not in those with albuminuria. A low eGFR is a better predictor of mortality than retinopathy in type 2 diabetic inpatients with albuminuria.
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Affiliation(s)
- Ya-Mei Hsieh
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, No. 1650 Taiwan Boulevard, Sect. 4, Taichung, 40705, Taiwan
| | - Wen-Jane Lee
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, 40705 Taiwan
| | - Wayne H.-H. Sheu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, No. 1650 Taiwan Boulevard, Sect. 4, Taichung, 40705, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, 11221 Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, 40201 Taiwan
| | - Yu-Hsuan Li
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, No. 1650 Taiwan Boulevard, Sect. 4, Taichung, 40705, Taiwan
| | - Shih-Yi Lin
- Center for Geriatrics and Gerontology, Taichung Veterans General Hospital, Taichung, 40705 Taiwan
| | - I.-Te Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, No. 1650 Taiwan Boulevard, Sect. 4, Taichung, 40705, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, 11221 Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, 40201 Taiwan
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Abstract
PURPOSE OF REVIEW Hypertension is the primary risk factor for cardiovascular disease and mortality that consists a major public health issue worldwide. Hypertension triggers a series of pathophysiological ocular modifications affecting significantly the retinal, choroidal, and optic nerve circulations that result in a range of ocular effects.The retina is the only place in the body where microvasculature can be directly inspected, providing valuable information on hypertension related systemic risks.The aim of this review is to provide an update on latest advances regarding the detection and significance of hypertension related eye signs. RECENT FINDINGS It's been shown that measurable retinal microvascular changes may precede progression of systemic microvascular disease.Last years, there are emerging advances in the field retinal imaging and computer software analysis that have enabled the objective and accurate assessment of retinal vascular caliber, while in association with latest epidemiological studies several other retinal vascular features have been recognized, such as vascular length-to-diameter ratio, and wall-to-lumen ratio that may also be associated to hypertension.Additionally, recent genetic studies have provided some insight to vascular pathophysiological processes having correlated new chromosome's loci to hypertensive retinopathy signs. SUMMARY Assessment of hypertensive retinopathy signs may convey additional prognostic information on the risk of end-organ damage and may alert for urgent systemic management or even preventive systemic therapies. Further development of retinal vascular imaging and computerized system may provide a significant tool to improve the diagnosis, prognosis, and management of hypertension in clinical practice.
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Blum A, Socea D, Sirchan R. Vascular responsiveness in type 2 diabetes mellitus (T2DM). QJM 2016; 109:791-796. [PMID: 27289111 DOI: 10.1093/qjmed/hcw081] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/21/2016] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Diabetic retinopathy is used for staging of progression of micro and macro-vascular complications of patients with DM. Our hypothesis was that diabetic patients at different stages of retinopathy would have different vascular responsiveness that will be used as a surrogate marker of macro-vascular disease for risk assessment of cardiovascular complications. METHODS A prospective study enrolled 96 patients. Twenty-three healthy volunteers (44 ± 11 years), 25 diabetic patients without retinopathy (63 ± 11 years), 25 patients with non-proliferative retinopathy [NPDR] (62 ± 9 years) and 23 patients with proliferative diabetic retinopathy [PDR] (59 ± 10 years). All patients underwent an ophthalmologic examination to diagnose retinopathy staging, and vascular responsiveness evaluation that included endothelial function evaluation (using the brachial artery method to measure flow mediated diameter change (FMD%)) and measuring the ankle-brachial blood pressure ratio, a measure of arterial stiffness. RESULTS Endothelial function was severely impaired in all diabetic patients. Patients with PDR had an FMD% of -3.1 ± 6.6%, patients with NPDR had -3.3 ± 9.2%, patients without retinopathy -1.9 ± 7.4% (P = NS between all groups of patients). Healthy controls had an FMD% of 16.5 ± 7.5% with a significant difference (P < 0.001) compared with each group of patients. No difference in FMD% was observed among patients (P = 0.93 between PDR and NPDR groups, P = 0.54 between NPDR and no retinopathy groups and P = 0.71 between patients without retinopathy and those with PDR).The ankle brachial (ABI) ratio was 1.03 ± 0.28 in the PDR group, 1.14 ± 0.24 in the NPDR group and 0.97 ± 0.18 in the no-retinopathy group. Healthy volunteers had an ABI of 1.07 ± 0.18. No difference was observed between ABI of PDR and NPDR patients (P = 0.17) and between patients without retinopathy and PDR patients (P = 0.91). However, a significant difference was observed between the NPDR and no-retinopathy groups (P = 0.008). No significant difference was found between ABI ratios when compared with the control group (P = 0.62 for PDR, P = 0.26 for NPDR and P = 0.07 for the no-retinopathy group). No difference was observed in age and BMI among all groups of patients (P = NS for all). Patients were older (P < 0.001) and had a higher BMI (P < 0.001). Interestingly there was no difference in height among groups of patients, but controls were significantly taller compared with each group of patients (P < 0.02). CONCLUSIONS All patients with T2DM had severe endothelial dysfunction with no difference among the different retinopathy groups. In our patients, all patients had a normal arterial stiffness but patients without retinopathy who had the highest arterial stiffness. We could not distinguish vascular traits that would define diabetic patients at the highest risk to develop cardiovascular complications.
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Affiliation(s)
- A Blum
- From the Department of Medicine, Baruch Padeh Poria Medical Center, Faculty of Medicine in the Galilee Bar Ilan University, Lower Galilee 15208, Israel
| | - D Socea
- From the Department of Medicine, Baruch Padeh Poria Medical Center, Faculty of Medicine in the Galilee Bar Ilan University, Lower Galilee 15208, Israel
| | - R Sirchan
- From the Department of Medicine, Baruch Padeh Poria Medical Center, Faculty of Medicine in the Galilee Bar Ilan University, Lower Galilee 15208, Israel
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17
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Loprinzi PD. Effect of physical activity on mortality risk among Americans with retinopathy. Health Promot Perspect 2016; 6:171-3. [PMID: 27579262 PMCID: PMC5002885 DOI: 10.15171/hpp.2016.27] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 06/26/2016] [Indexed: 12/14/2022] Open
Abstract
Background: Previous work demonstrates that retinopathy is associated with increased mortality risk, with physical activity inversely associated with retinopathy and all-cause mortality. However, no study has evaluated the effects of physical activity on mortality among those with existing retinopathy, which was this study’s purpose. Methods: Data from the 2005-2006 National Health and Nutrition Examination Survey were utilized, with follow-up through 2011. Retinopathy was objectively-measured using the Canon Non-Mydriatic Retinal Camera CR6-45NM. Physical activity was objectively-measured via up to 7 days of accelerometry assessment. Results: Six-hundred and seventy one adults (40-85 years) with complete data on the study variables constituted the analytic sample. During the follow-up period, 91 deaths occurred. In the sample, 35 886 person-months occurred with a mortality incidence rate of 2.5 deaths per1000 person-months. Among participants with mild retinopathy, those who met physical activity guidelines at baseline had a 63% reduced risk of all-cause mortality (HR adjusted = 0.37; 95% CI:0.18-0.75; P = 0.007). Notably, physical activity was not associated with mortality risk among those with moderate/severe retinopathy (HR adjusted = 0.371.72; 95% CI: 0.62-4.76; P = 0.27). Conclusion: Physical activity is associated with reduced mortality risk among those with mild retinopathy, but not among those with moderate/severe retinopathy.
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Affiliation(s)
- Paul D Loprinzi
- Jackson Heart Study Vanguard Center of Oxford, Physical Activity Epidemiology Laboratory, Center for Health Behavior Research, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, University, MS 38677, USA
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Hwang HS, Kim SY, Hong YA, Cho WK, Chang YK, Shin SJ, Yang CW, Kim SY, Yoon HE. Clinical impact of coexisting retinopathy and vascular calcification on chronic kidney disease progression and cardiovascular events. Nutr Metab Cardiovasc Dis 2016; 26:590-596. [PMID: 27089976 DOI: 10.1016/j.numecd.2016.02.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 12/16/2015] [Accepted: 02/05/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND AND AIMS Retinopathy and vascular calcification (VC) are representative markers of microvascular and macrovascular dysfunction in patients with chronic kidney disease (CKD). However, their relationship and combined effects on clinical outcomes remain undetermined. METHODS AND RESULTS We included 523 patients with nondialysis-dependent CKD stage 3-5 who had been examined with fundus photography for diabetic or hypertensive retinopathy. Simple radiographs were analyzed for the presence of VC. The clinical significance of VC of the abdominal aorta and iliofemoral artery (apVC) and retinopathy was evaluated in terms of the rate of renal function decline and composite of any cardiovascular event or death. CKD patients with retinopathy showed higher prevalence of apVC than those without retinopathy (25.6% vs. 12.5%, P < 0.001).The presence of retinopathy was independently associated with apVC (OR 2.13, 95% CI 1.31, 3.49). In multivariate analysis, compared with subjects with neither apVC nor retinopathy, the coexistence of both apVC and retinopathy were independently associated with rapid renal function decline (β = -1.51; 95% CI -2.40, -0.61), whereas apVC or retinopathy alone were not. Compared with subjects with neither apVC nor retinopathy, the HRs for composite end points were 1.05 (95% CI 0.48, 2.27), 1.79 (95% CI 1.14, 2.80), and 2.07 (95% CI 1.17, 3.67) for patients with apVC only, those with retinopathy only, and those with both apVC and retinopathy, respectively. CONCLUSION The coexistence of VC and retinopathy was independently associated with CKD progression and cardiovascular events or deaths, and its combined effect was stronger than any separate condition.
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Affiliation(s)
- H S Hwang
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Republic of Korea
| | - S Y Kim
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Republic of Korea
| | - Y A Hong
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Republic of Korea
| | - W K Cho
- Department of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Republic of Korea
| | - Y K Chang
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Republic of Korea
| | - S J Shin
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Republic of Korea; Department of Internal Medicine, Incheon St. Mary's Hospital, Republic of Korea
| | - C W Yang
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Republic of Korea
| | - S Y Kim
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Republic of Korea
| | - H E Yoon
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Republic of Korea; Department of Internal Medicine, Incheon St. Mary's Hospital, Republic of Korea.
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Joint Effect of Early Microvascular Damage in the Eye &Kidney on Risk of Cardiovascular Events. Sci Rep 2016; 6:27442. [PMID: 27273133 PMCID: PMC4897605 DOI: 10.1038/srep27442] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 05/11/2016] [Indexed: 01/17/2023] Open
Abstract
Microalbuminuria is associated with an increased risk of cardiovascular disease (CVD), but not all individuals require treatment. Retinal microvascular abnormalities and microalbuminuria reflect early systemic microvascular changes. We examined the joint effect of retinal abnormalities and microalbuminuria on CVD risk in an Asian cohort. We conducted a prospective, population-based study. Retinal abnormalities were defined as presence of retinopathy and/or retinal venular widening. Microalbuminuria was defined as urinary albumin: creatinine ratio between 30–300 mg/g. Incident CVD was defined as newly diagnosed clinical stroke, acute myocardial infarction or CVD death. Cox regression models were performed to determine the associations between retinal abnormalities and microalbuminuria with risk of CVD, while controlling for established risk factors. 3,496 participants (aged ≥ 40) were free of prevalent CVD. During the follow-up (5.8 years), 126 (3.60%) participants developed CVD. Persons presenting with both retinal abnormalities and microalbuminuria were 6.71 times (95% CI, 2.68, 16.79) as likely to have incident CVD compared with those without either abnormalities. There was a significant interaction effect between retinal abnormalities and microalbuminuria on incident CVD. Assessment of retinal abnormalities in patients with microalbuminuria may provide additional value in identifying persons at risk of developing CVD.
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Mortality in Older Persons with Retinopathy and Concomitant Health Conditions: The Age, Gene/Environment Susceptibility-Reykjavik Study. Ophthalmology 2016; 123:1570-80. [PMID: 27067925 DOI: 10.1016/j.ophtha.2016.02.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 02/26/2016] [Accepted: 02/26/2016] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To assess the impact of retinopathy on mortality in older persons with concomitant health conditions. DESIGN Population-based prospective cohort study. PARTICIPANTS A total of 4966 individuals aged 67 to 96 years (43.2% were male) from the Age, Gene/Environment Susceptibility-Reykjavik Study (AGES-RS). METHODS Retinopathy was evaluated from digital fundus images (2002-2006) using the modified Airlie House adaptation of the Early Treatment Diabetic Retinopathy Study protocol. Mortality was assessed through September 2013 (cause of death assigned through 2009). Cox proportional hazards regression models, with age as the time scale, estimated the association between retinopathy and death while controlling for risk factors and the presence of concomitant health conditions. MAIN OUTCOME MEASURES Mortality from all causes and cardiovascular disease (CVD). RESULTS Among the 4966 participants, 503 (10.1%) had diabetes and 614 (12.4%) had retinopathy at baseline. A subset of these (136 [2.7%]) had both diabetes and retinopathy. After a median follow-up of 8.6 years, 1763 persons died, 276 (45.0%) with retinopathy and 1487 (34.2%) without retinopathy, of whom 76 and 162 persons, respectively, also had diabetes. There were 366 deaths from CVD through 2009, 72 (11.7%) in persons with retinopathy and 294 (6.8%) in those without retinopathy. In multivariable analyses, retinopathy was significantly associated with all-cause mortality (hazard ratio [HR], 1.26; 95% confidence interval [CI], 1.10-1.43; P < 0.01) and CVD-related mortality (HR, 1.57; 95% CI, 1.20-2.06; P < 0.01). Findings were more striking in men: all-cause HR, 1.33 (95% CI, 1.11-1.60) and CVD HR, 1.81 (95% CI, 1.25-2.63). Risk of mortality was further increased among those with retinopathy concomitant with microalbuminuria (all-cause HR, 1.70; 95% CI, 1.03-2.23, and CVD HR, 2.04; 95% CI, 1.27-3.28) and those with retinopathy, microalbuminuria, and diabetes (all-cause HR, 2.01; 95% CI, 1.22-3.31, and CVD HR, 5.24; 95% CI, 1.91-14.42). History of clinical stroke increased the risk of CVD-related mortality among persons with retinopathy (HR, 3.30; 95% CI, 2.05-5.32), particularly those with retinopathy and diabetes (HR, 5.38; 95% CI, 1.80-16.06). CONCLUSIONS Even minimal retinopathy was a significant predictor of increased mortality in older persons, particularly men, irrespective of diabetes status. Persons with retinopathy may warrant closer clinical management of general health.
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Ng WY, Teo BW, Tai ES, Sethi S, Lamoureux E, Tien Yin W, Sabanayagam C. Cystatin C, chronic kidney disease and retinopathy in adults without diabetes. Eur J Prev Cardiol 2016; 23:1413-20. [PMID: 26928726 DOI: 10.1177/2047487316637182] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 02/15/2016] [Indexed: 12/21/2022]
Abstract
BACKGROUND Serum cystatin C, a novel marker of renal function has been shown to be superior to serum creatinine in predicting renal function decline and adverse outcomes of chronic kidney disease (CKD). Our aim was to investigate the association between cystatin C and retinopathy in adults without diabetes. METHODS We examined 1725 Indian adults, aged 40-80 years who participated in the Singapore Indian Eye Study (2007-2009) and were free of diabetes mellitus. CKD was defined as an estimated glomerular filtration rate (eGFR) <60 ml/min/1.73 m(2) determined from serum cystatin C (CKD-eGFRcys, n = 199), and serum creatinine (CKD-eGFRcr, n = 81). Retinopathy was assessed from digital fundus photographs of both eyes by trained graders using the modified Airlie House classification. The associations of CKD defined by the two markers alone and in combination (confirmed CKD, eGFRcr <60 and eGFRcys <60, n = 58) with retinopathy were examined using logistic regression models adjusted for potential confounding factors including preexisting cardiovascular disease and albuminuria. RESULTS The prevalence of retinopathy among those with CKD-eGFRcr and CKD-eGFRcys was 9.9% and 8.5%, respectively. In separate models, the associations of retinopathy with both CKD-eGFRcys (odds ratio (OR) (95% confidence interval (CI)) = 2.18 (1.14-4.16)) and CKD-eGFRcr were significant (OR (95% CI) = 2.63 (1.10-6.28)). In models including both markers, compared to optimal kidney function (eGFRcr ≥60 and eGFRcys ≥60), confirmed CKD was associated with a fourfold higher odds of retinopathy (OR (95% CI) = 4.01 (1.52-10.60)). CONCLUSIONS In a population-based sample of Indian adults without diabetes, CKD defined by both cystatin C and creatinine was strongly associated with retinopathy.
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Affiliation(s)
- Wei Yan Ng
- Singapore National Eye Centre, Singapore
| | - Boon Wee Teo
- Department of Medicine, National University of Singapore, Singapore
| | - E Shyong Tai
- Department of Medicine, National University of Singapore, Singapore
| | - Sunil Sethi
- Department of Pathology, National University of Singapore, Singapore
| | - Ecosse Lamoureux
- Singapore Eye Research Institute, Singapore Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore Department of Ophthalmology, National University of Singapore, Singapore
| | - Wong Tien Yin
- Singapore National Eye Centre, Singapore Singapore Eye Research Institute, Singapore Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore Department of Ophthalmology, National University of Singapore, Singapore
| | - Charumathi Sabanayagam
- Singapore Eye Research Institute, Singapore Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore Department of Ophthalmology, National University of Singapore, Singapore
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Lee R, Wong TY, Sabanayagam C. Epidemiology of diabetic retinopathy, diabetic macular edema and related vision loss. EYE AND VISION 2015. [PMID: 26605370 DOI: 10.1186/s40662-015-0026-2 10.1186/s40662-015-0026-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Diabetic retinopathy (DR) is a leading cause of vision-loss globally. Of an estimated 285 million people with diabetes mellitus worldwide, approximately one third have signs of DR and of these, a further one third of DR is vision-threatening DR, including diabetic macular edema (DME). The identification of established modifiable risk factors for DR such as hyperglycemia and hypertension has provided the basis for risk factor control in preventing onset and progression of DR. Additional research investigating novel risk factors has improved our understanding of multiple biological pathways involved in the pathogenesis of DR and DME, especially those involved in inflammation and oxidative stress. Variations in DR prevalence between populations have also sparked interest in genetic studies to identify loci associated with disease susceptibility. In this review, major trends in the prevalence, incidence, progression and regression of DR and DME are explored, and gaps in literature identified. Established and novel risk factors are also extensively reviewed with a focus on landmark studies and updates from the recent literature.
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Affiliation(s)
- Ryan Lee
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore ; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Tien Y Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore ; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore ; Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore, Singapore
| | - Charumathi Sabanayagam
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore ; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore ; Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore, Singapore
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23
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Lee R, Wong TY, Sabanayagam C. Epidemiology of diabetic retinopathy, diabetic macular edema and related vision loss. EYE AND VISION (LONDON, ENGLAND) 2015. [PMID: 26605370 DOI: 10.1186/s40662-015-0026-2+10.1186/s40662-015-0026-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Diabetic retinopathy (DR) is a leading cause of vision-loss globally. Of an estimated 285 million people with diabetes mellitus worldwide, approximately one third have signs of DR and of these, a further one third of DR is vision-threatening DR, including diabetic macular edema (DME). The identification of established modifiable risk factors for DR such as hyperglycemia and hypertension has provided the basis for risk factor control in preventing onset and progression of DR. Additional research investigating novel risk factors has improved our understanding of multiple biological pathways involved in the pathogenesis of DR and DME, especially those involved in inflammation and oxidative stress. Variations in DR prevalence between populations have also sparked interest in genetic studies to identify loci associated with disease susceptibility. In this review, major trends in the prevalence, incidence, progression and regression of DR and DME are explored, and gaps in literature identified. Established and novel risk factors are also extensively reviewed with a focus on landmark studies and updates from the recent literature.
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Affiliation(s)
- Ryan Lee
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore ; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Tien Y Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore ; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore ; Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore, Singapore
| | - Charumathi Sabanayagam
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore ; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore ; Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore, Singapore
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24
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Lee R, Wong TY, Sabanayagam C. Epidemiology of diabetic retinopathy, diabetic macular edema and related vision loss. EYE AND VISION 2015; 2:17. [PMID: 26605370 PMCID: PMC4657234 DOI: 10.1186/s40662-015-0026-2] [Citation(s) in RCA: 823] [Impact Index Per Article: 91.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 09/01/2015] [Indexed: 12/15/2022]
Abstract
Diabetic retinopathy (DR) is a leading cause of vision-loss globally. Of an estimated 285 million people with diabetes mellitus worldwide, approximately one third have signs of DR and of these, a further one third of DR is vision-threatening DR, including diabetic macular edema (DME). The identification of established modifiable risk factors for DR such as hyperglycemia and hypertension has provided the basis for risk factor control in preventing onset and progression of DR. Additional research investigating novel risk factors has improved our understanding of multiple biological pathways involved in the pathogenesis of DR and DME, especially those involved in inflammation and oxidative stress. Variations in DR prevalence between populations have also sparked interest in genetic studies to identify loci associated with disease susceptibility. In this review, major trends in the prevalence, incidence, progression and regression of DR and DME are explored, and gaps in literature identified. Established and novel risk factors are also extensively reviewed with a focus on landmark studies and updates from the recent literature.
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Affiliation(s)
- Ryan Lee
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore ; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Tien Y Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore ; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore ; Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore, Singapore
| | - Charumathi Sabanayagam
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore ; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore ; Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore, Singapore
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Hwang HS, Choi YA, Kim SY, Cho WK, Nam Y, Kim SJ, Yoon HE, Chang YK, Shin SJ, Yang CW, Kim SY. Diabetes retinopathy is a poor predictor for renal and cardiovascular outcomes in comparison with hypertensive retinopathy in patients with chronic kidney disease. Diabetes Res Clin Pract 2015; 109:312-8. [PMID: 26008724 DOI: 10.1016/j.diabres.2015.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 02/13/2015] [Accepted: 05/03/2015] [Indexed: 11/21/2022]
Abstract
AIMS Chronic kidney disease (CKD) and retinopathy share the common pathophysiology of microvascular dysfunction. It is unclear whether the clinical significance of diabetic retinopathy (DMR) and hypertensive retinopathy (HTNR) differs in CKD patients. METHODS We included 684 nondialysis-dependent CKD stage 3-5 patients with diabetes or hypertension: 501 patients with diabetes and 183 with hypertension. The clinical significance of DMR and HTNR was evaluated in terms of the rate of renal function decline and composite of any cardiovascular event or death. RESULTS DMR was observed in 261 (52.1%) CKD patients with diabetes, and HTNR in 44 (24.0%) CKD patients with hypertension. In the diabetes group, the renal function decline rate was significantly steeper in patients with than in those without DMR (-7.4 ± 9.8mL/min/1.73m(2)/yr vs. -2.4 ± 7.6mL/min/1.73m(2)/yr; P<0.001). In multivariate analysis, DMR were independently associated with a rapid decline in renal function (β=-2.44; P=0.20). However, HTNR did not affect the renal function decline in CKD patients. The composite event-free survival rate was lower in patients with diabetes and DMR than in those without DMR (P=0.043). Patients with diabetes and DMR were independently associated with a 2.13-fold increased risk for composite events (P=0.010). HTNR was not associated with higher risk for composite events in CKD patients. CONCLUSION Coexistence of diabetes and DMR were independently associated with CKD progression and composite cardiovascular event/death, but the clinical significance of HTNR is less clear in CKD patients.
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Affiliation(s)
- Hyeon Seok Hwang
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Daejeon, Republic of Korea
| | - Yoo A Choi
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Daejeon, Republic of Korea
| | - Se Young Kim
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Daejeon, Republic of Korea
| | - Won-Kyung Cho
- Department of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yunju Nam
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Daejeon, Republic of Korea
| | - Sung Jun Kim
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Internal Medicine, Incheon St. Mary's Hospital, Incheon, Republic of Korea
| | - Hye Eun Yoon
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Internal Medicine, Incheon St. Mary's Hospital, Incheon, Republic of Korea.
| | - Yoon Kyung Chang
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Daejeon, Republic of Korea
| | - Seok Joon Shin
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Internal Medicine, Incheon St. Mary's Hospital, Incheon, Republic of Korea
| | - Chul Woo Yang
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Suk Young Kim
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Internal Medicine, Daejeon St. Mary's Hospital, Daejeon, Republic of Korea
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Mehta R, Ying GS, Houston S, Isakova T, Nessel L, Ojo A, Go A, Lash J, Kusek J, Grunwald J, Wolf M. Phosphate, fibroblast growth factor 23 and retinopathy in chronic kidney disease: the Chronic Renal Insufficiency Cohort Study. Nephrol Dial Transplant 2015; 30:1534-41. [PMID: 25910495 DOI: 10.1093/ndt/gfv123] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 03/30/2015] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Elevated circulating concentrations of phosphate and fibroblast growth factor 23 (FGF23) contribute to the pathogenesis of cardiovascular disease in chronic kidney disease (CKD). Retinopathy is a common manifestation of microvascular disease in CKD, but its associations with phosphate and FGF23 have not been studied. We tested the hypothesis that higher serum phosphate is associated with more severe retinopathy in individuals with CKD, independent of FGF23 and known risk factors for retinopathy. METHODS We tested the associations of serum phosphate and plasma FGF23 with retinopathy in a cross-sectional analysis of 1800 participants in the Chronic Renal Insufficiency Cohort Study who underwent fundus photography. Retinopathy severity was graded according to the Early Treatment of Diabetic Retinopathy Severity score, and retinal venous and arterial diameters were measured. RESULTS Mean estimated glomerular filtration rate (eGFR) was 46.5 ± 15.4 mL/min/1.73 m(2), mean serum phosphate was 3.7 ± 0.6 mg/dl and median plasma C-terminal FGF23 was 133 RU/mL (interquartile range 87.2, 217.8 RU/mL). In multivariable ordinal logistic regression models, higher serum phosphate was associated with greater retinopathy severity independent of hypertension, diabetes, CKD severity and FGF23 [adjusted odds ratio of being in one higher category of retinopathy severity: 1.19 per 1 standard deviation increase; 95% confidence interval (CI) 1.05, 1.36; P = 0.007]. Presence of diabetes or hypertension did not modify the results. Higher serum phosphate was also independently associated with greater retinal venous diameter (multivariable-adjusted 1.70 µm increase per 1 standard deviation increase in phosphate; 95% CI 0.46, 2.93; P = 0.007). FGF23 levels were not independently associated with retinopathy severity or retinal venous diameter, and neither FGF23 nor phosphate was associated with retinal arterial diameter. CONCLUSIONS Among individuals with moderate-to-severe CKD, higher serum phosphate but not FGF23 was independently associated with more severe retinopathy and microvascular retinal venous dilatation.
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Affiliation(s)
- Rupal Mehta
- Division of Nephrology and Hypertension, Department of Medicine and Center for Translational Metabolism and Health, Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | | | | | - Tamara Isakova
- Division of Nephrology and Hypertension, Department of Medicine and Center for Translational Metabolism and Health, Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Lisa Nessel
- University of Pennsylvania, Philadelphia, PA, USA
| | | | - Alan Go
- Kaiser Permanente, Oakland, CA, USA
| | - Jim Lash
- University of Illinois at Chicago, Chicago, IL, USA
| | - John Kusek
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | | | - Myles Wolf
- Division of Nephrology and Hypertension, Department of Medicine and Center for Translational Metabolism and Health, Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Lip GY, Clementy N, Pierre B, Boyer M, Fauchier L. The Impact of Associated Diabetic Retinopathy on Stroke and Severe Bleeding Risk in Diabetic Patients With Atrial Fibrillation. Chest 2015; 147:1103-1110. [DOI: 10.1378/chest.14-2096] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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