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Rashid M, Alkhodari M, Mukit A, Ahmed KIU, Mostafa R, Parveen S, Khandoker AH. Machine Learning for Screening Microvascular Complications in Type 2 Diabetic Patients Using Demographic, Clinical, and Laboratory Profiles. J Clin Med 2022; 11:jcm11040903. [PMID: 35207179 PMCID: PMC8879306 DOI: 10.3390/jcm11040903] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/23/2022] [Accepted: 01/30/2022] [Indexed: 12/30/2022] Open
Abstract
Microvascular complications are one of the key causes of mortality among type 2 diabetic patients. This study was sought to investigate the use of a novel machine learning approach for predicting these complications using only the patient demographic, clinical, and laboratory profiles. A total of 96 Bangladeshi participants with type 2 diabetes were recruited during their routine hospital visits. All patient profiles were assessed by using a chi-squared (χ2) test to statistically determine the most important markers in predicting three microvascular complications: cardiac autonomic neuropathy (CAN), diabetic peripheral neuropathy (DPN), and diabetic retinopathy (RET). A machine learning approach based on logistic regression, random forest (RF), and support vector machine (SVM) algorithms was then developed to ensure automated clinical testing for microvascular complications in diabetic patients. The highest prediction accuracies were obtained by RF using diastolic blood pressure, albumin–creatinine ratio, and gender for CAN testing (98.67%); microalbuminuria, smoking history, and hemoglobin A1C for DPN testing (67.78%); and hemoglobin A1C, microalbuminuria, and smoking history for RET testing (84.38%). This study suggests machine learning as a promising automated tool for predicting microvascular complications in diabetic patients using their profiles, which could help prevent those patients from further microvascular complications leading to early death.
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Affiliation(s)
- Mamunur Rashid
- Department of Electrical and Electronic Engineering, United International University, Dhaka 1212, Bangladesh; (M.R.); (A.M.); (K.I.U.A.); (R.M.)
| | - Mohanad Alkhodari
- Healthcare Engineering Innovation Center (HEIC), Department of Biomedical Engineering, Khalifa University, Abu Dhabi 127788, United Arab Emirates;
- Correspondence:
| | - Abdul Mukit
- Department of Electrical and Electronic Engineering, United International University, Dhaka 1212, Bangladesh; (M.R.); (A.M.); (K.I.U.A.); (R.M.)
- Department of Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK 74135, USA
| | - Khawza Iftekhar Uddin Ahmed
- Department of Electrical and Electronic Engineering, United International University, Dhaka 1212, Bangladesh; (M.R.); (A.M.); (K.I.U.A.); (R.M.)
| | - Raqibul Mostafa
- Department of Electrical and Electronic Engineering, United International University, Dhaka 1212, Bangladesh; (M.R.); (A.M.); (K.I.U.A.); (R.M.)
| | - Sharmin Parveen
- Department of Health Informatics, Bangladesh University of Health Sciences, Dhaka 1216, Bangladesh;
| | - Ahsan H. Khandoker
- Healthcare Engineering Innovation Center (HEIC), Department of Biomedical Engineering, Khalifa University, Abu Dhabi 127788, United Arab Emirates;
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ElHajj Chehadeh S, Sayed NS, Abdelsamad HS, Almahmeed W, Khandoker AH, Jelinek HF, Alsafar HS. Genetic Variants and Their Associations to Type 2 Diabetes Mellitus Complications in the United Arab Emirates. Front Endocrinol (Lausanne) 2022; 12:751885. [PMID: 35069435 PMCID: PMC8772337 DOI: 10.3389/fendo.2021.751885] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/22/2021] [Indexed: 11/13/2022] Open
Abstract
Aim Type 2 Diabetes Mellitus (T2DM) is associated with microvascular complications, including diabetic retinopathy (DR), diabetic nephropathy (DNp), and diabetic peripheral neuropathy (DPN). In this study, we investigated genetic variations and Single Nucleotide Polymorphisms (SNPs) associated with DR, DNp, DPN and their combinations among T2DM patients of Arab origin from the United Arab Emirates, to establish the role of genes in the progression of microvascular diabetes complications. Methods A total of 158 Emirati patients with T2DM were recruited in this study. The study population was divided into 8 groups based on the presence of single, dual, or all three complications. SNPs were selected for association analyses through a search of publicly available databases, specifically genome-wide association study (GWAS) catalog, infinome genome interpretation platform, and GWAS Central database. A multivariate logistic regression analysis and association test were performed to evaluate the association between 83 SNPs and DR, DNp, DPN, and their combinations. Results Eighty-three SNPs were identified as being associated with T2DM and 18 SNPs had significant associations to one or more diabetes complications. The most strongly significant association for DR was rs3024997 SNP in the VEGFA gene. The top-ranked SNP for DPN was rs4496877 in the NOS3 gene. A trend towards association was detected at rs833068 and rs3024998 in the VEGFA gene with DR and rs743507 and rs1808593 in the NOS3 gene with DNp. For dual complications, the rs833061, rs833068 and rs3024997 in the VEGFA gene and the rs4149263 SNP in the ABCA1 gene were also with borderline association with DR/DNp and DPN/DNp, respectively. Diabetic with all of the complications was significantly associated with rs2230806 in the ABCA1 gene. In addition, the highly associated SNPs rs3024997 of the VEGFA gene and rs4496877 of the NOS3 gene were linked to DR and DPN after adjusting for the effects of other associated markers, respectively. Conclusions The present study reports associations of different genetic polymorphisms with microvascular complications and their combinations in Emirati T2DM patients, reporting new associations, and corroborating previous findings. Of interest is that some SNPs/genes were only present if multiple comorbidities were present and not associated with any single complication.
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Affiliation(s)
| | - Noura S. Sayed
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
| | - Hanin S. Abdelsamad
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Wael Almahmeed
- Institute of Cardiac Science, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
- Heart and Vascular Institute, Cleveland Clinic, Abu Dhabi, United Arab Emirates
| | - Ahsan H. Khandoker
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Healthcare Engineering Innovation Center (HEIC), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Herbert F. Jelinek
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Healthcare Engineering Innovation Center (HEIC), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Habiba S. Alsafar
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
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Kurtul BE, Kurtul A, Yalçın F. Predictive value of the SYNTAX score for diabetic retinopathy in stable coronary artery disease patients with a concomitant type 2 diabetes mellitus. Diabetes Res Clin Pract 2021; 177:108875. [PMID: 34058301 DOI: 10.1016/j.diabres.2021.108875] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 03/13/2021] [Accepted: 05/26/2021] [Indexed: 11/15/2022]
Abstract
AIMS Diabetic retinopathy (DR) is a serious complication of type 2 diabetes mellitus (T2DM) and is the most common cause of impaired vision for adults. DR is related to a number of risk factors. The aim of this study was to investigate the relationship between burden of coronary artery disease assessed by Syntax Score (SS) and DR in T2DM. METHODS A total of 96 T2DM patients undergoing coronary angiography were prospectively included in the study. Presence and severity of DR were assessed by ocular fundus examination. DR was graded as no apparent retinopathy (NDR), non-proliferative (NPDR), and proliferative DR (PDR). The SS for each patient was calculated. RESULTS The mean age was 58.0 ± 8.2 years. SS gradually increased from NDR group to PDR group. The median (IQR) value of SS was 10 (5-16) in patients with NDR, 22.8 (17-35.8) in those with NPDR, and 35.5 (28-37) in those with PDR (p < 0.001). On multivariate analysis SS [odds ratio (OR) 1.145, p = 0.001] and duration of diabetes (OR 1.753, p = 0.031) were independent factors for DR. CONCLUSIONS The SS is independently associated with the occurrence of DR in T2DM. Ophthalmologists and cardiologists must cooperate when evaluating patients with DM because of possible complications.
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Affiliation(s)
- Bengi Ece Kurtul
- Hatay Mustafa Kemal University, Tayfur Ata Sökmen Faculty of Medicine, Department of Ophthalmology, Hatay, Turkey.
| | - Alparslan Kurtul
- Hatay Mustafa Kemal University, Tayfur Ata Sökmen Faculty of Medicine, Department of Cardiology, Hatay, Turkey
| | - Fatih Yalçın
- Hatay Mustafa Kemal University, Tayfur Ata Sökmen Faculty of Medicine, Department of Cardiology, Hatay, Turkey
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Abstract
Diabetes mellitus can cause diabetic retinopathy, diabetic macular edema, optic neuropathy, cataract or dysfunction of the eye muscles. The incidence of these defects correlates with disease duration and quality of metabolic control. Recommendations of the Austrian Diabetes Association for diagnosis, therapeutic procedures and requirements for adequate follow-up depending on stage of diabetic eye disease are summarized.
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Azzam SK, Osman WM, Lee S, Khalaf K, Khandoker AH, Almahmeed W, Jelinek HF, Al Safar HS. Genetic Associations With Diabetic Retinopathy and Coronary Artery Disease in Emirati Patients With Type-2 Diabetes Mellitus. Front Endocrinol (Lausanne) 2019; 10:283. [PMID: 31130920 PMCID: PMC6509200 DOI: 10.3389/fendo.2019.00283] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 04/17/2019] [Indexed: 12/15/2022] Open
Abstract
Aim: Type 2 Diabetes Mellitus (T2DM) is associated with both microvascular complications such as diabetic retinopathy (DR), and macrovascular complications like coronary artery disease (CAD). Genetic risk factors have a role in the development of these complications. In the present case-control study, we investigated genetic variations associated with DR and CAD in T2DM patients from the United Arab Emirates. Methods: A total of 407 Emirati patients with T2DM were recruited. Categorization of the study population was performed based on the presence or absence of DR and CAD. Seventeen Single Nucleotide Polymorphisms (SNPs), were selected for association analyses through search of publicly available databases, namely GWAS catalog, infinome genome interpretation platform and GWAS Central database. A multivariate logistic regression test was performed to evaluate the association between the 17 SNPs and DR, CAD, or both. To account for multiple testing, significance was set at p < 0.00294 using the Bonferroni correction. Results: The SNPs rs9362054 near the CEP162 gene and rs4462262 near the UBE2D1 gene were associated with DR (OR = 1.66, p = 0.001; OR = 1.37, p = 0.031; respectively), and rs12219125 near the PLXDC2 gene was associated (suggestive) with CAD (OR = 2.26, p = 0.034). Furthermore, rs9362054 near the CEP162 gene was significantly associated with both complications (OR = 2.27, p = 0.0021). The susceptibility genes for CAD (PLXDC2) and DR (UBE2D1) have a role in angiogenesis and neovascularization. Moreover, association between the ciliary gene CEP162 and DR was established in terms of retinal neural processing, confirming previous reports. Conclusions: The present study reports associations of different genetic loci with DR and CAD. We report new associations between CAD and PLXDC2, and DR with UBE2D1 using data from T2DM Emirati patients.
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Affiliation(s)
- Sarah K. Azzam
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Wael M. Osman
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
| | - Sungmun Lee
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Kinda Khalaf
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Ahsan H. Khandoker
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Wael Almahmeed
- Institute of Cardiac Science, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
- Heart and Vascular Institute, Cleveland Clinic, Abu Dhabi, United Arab Emirates
| | - Herbert F. Jelinek
- Australian School of Advanced Medicine, Sydney and School of Community Health, Charles Sturt University, Macquarie University, Albury, NSW, Australia
| | - Habiba S. Al Safar
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
- *Correspondence: Habiba S. Al Safar
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Hooper P, Boucher MC, Cruess A, Dawson KG, Delpero W, Greve M, Kozousek V, Lam WC, Maberley DAL. Excerpt from the Canadian Ophthalmological Society evidence-based clinical practice guidelines for the management of diabetic retinopathy. Can J Ophthalmol 2017; 52 Suppl 1:S45-S74. [PMID: 29074014 DOI: 10.1016/j.jcjo.2017.09.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Philip Hooper
- Philip Hooper, London, ON (Chair) (retina and uveitis); Marie Carole Boucher, Montreal, QC (retina and teleophthalmology); Alan Cruess, Halifax, NS (retina); Keith G. Dawson, Vancouver, BC (endocrinology); Walter Delpero, Ottawa, ON (cataract and strabismus); Mark Greve, Edmonton, AB (retina and teleophthalmology); Vladimir Kozousek, Halifax, NS (medical retina); Wai-Ching Lam, Toronto, ON (retina and research); David A.L. Maberley, Vancouver, BC (retina)..
| | - Marie Carole Boucher
- Philip Hooper, London, ON (Chair) (retina and uveitis); Marie Carole Boucher, Montreal, QC (retina and teleophthalmology); Alan Cruess, Halifax, NS (retina); Keith G. Dawson, Vancouver, BC (endocrinology); Walter Delpero, Ottawa, ON (cataract and strabismus); Mark Greve, Edmonton, AB (retina and teleophthalmology); Vladimir Kozousek, Halifax, NS (medical retina); Wai-Ching Lam, Toronto, ON (retina and research); David A.L. Maberley, Vancouver, BC (retina)
| | - Alan Cruess
- Philip Hooper, London, ON (Chair) (retina and uveitis); Marie Carole Boucher, Montreal, QC (retina and teleophthalmology); Alan Cruess, Halifax, NS (retina); Keith G. Dawson, Vancouver, BC (endocrinology); Walter Delpero, Ottawa, ON (cataract and strabismus); Mark Greve, Edmonton, AB (retina and teleophthalmology); Vladimir Kozousek, Halifax, NS (medical retina); Wai-Ching Lam, Toronto, ON (retina and research); David A.L. Maberley, Vancouver, BC (retina)
| | - Keith G Dawson
- Philip Hooper, London, ON (Chair) (retina and uveitis); Marie Carole Boucher, Montreal, QC (retina and teleophthalmology); Alan Cruess, Halifax, NS (retina); Keith G. Dawson, Vancouver, BC (endocrinology); Walter Delpero, Ottawa, ON (cataract and strabismus); Mark Greve, Edmonton, AB (retina and teleophthalmology); Vladimir Kozousek, Halifax, NS (medical retina); Wai-Ching Lam, Toronto, ON (retina and research); David A.L. Maberley, Vancouver, BC (retina)
| | - Walter Delpero
- Philip Hooper, London, ON (Chair) (retina and uveitis); Marie Carole Boucher, Montreal, QC (retina and teleophthalmology); Alan Cruess, Halifax, NS (retina); Keith G. Dawson, Vancouver, BC (endocrinology); Walter Delpero, Ottawa, ON (cataract and strabismus); Mark Greve, Edmonton, AB (retina and teleophthalmology); Vladimir Kozousek, Halifax, NS (medical retina); Wai-Ching Lam, Toronto, ON (retina and research); David A.L. Maberley, Vancouver, BC (retina)
| | - Mark Greve
- Philip Hooper, London, ON (Chair) (retina and uveitis); Marie Carole Boucher, Montreal, QC (retina and teleophthalmology); Alan Cruess, Halifax, NS (retina); Keith G. Dawson, Vancouver, BC (endocrinology); Walter Delpero, Ottawa, ON (cataract and strabismus); Mark Greve, Edmonton, AB (retina and teleophthalmology); Vladimir Kozousek, Halifax, NS (medical retina); Wai-Ching Lam, Toronto, ON (retina and research); David A.L. Maberley, Vancouver, BC (retina)
| | - Vladimir Kozousek
- Philip Hooper, London, ON (Chair) (retina and uveitis); Marie Carole Boucher, Montreal, QC (retina and teleophthalmology); Alan Cruess, Halifax, NS (retina); Keith G. Dawson, Vancouver, BC (endocrinology); Walter Delpero, Ottawa, ON (cataract and strabismus); Mark Greve, Edmonton, AB (retina and teleophthalmology); Vladimir Kozousek, Halifax, NS (medical retina); Wai-Ching Lam, Toronto, ON (retina and research); David A.L. Maberley, Vancouver, BC (retina)
| | - Wai-Ching Lam
- Philip Hooper, London, ON (Chair) (retina and uveitis); Marie Carole Boucher, Montreal, QC (retina and teleophthalmology); Alan Cruess, Halifax, NS (retina); Keith G. Dawson, Vancouver, BC (endocrinology); Walter Delpero, Ottawa, ON (cataract and strabismus); Mark Greve, Edmonton, AB (retina and teleophthalmology); Vladimir Kozousek, Halifax, NS (medical retina); Wai-Ching Lam, Toronto, ON (retina and research); David A.L. Maberley, Vancouver, BC (retina)
| | - David A L Maberley
- Philip Hooper, London, ON (Chair) (retina and uveitis); Marie Carole Boucher, Montreal, QC (retina and teleophthalmology); Alan Cruess, Halifax, NS (retina); Keith G. Dawson, Vancouver, BC (endocrinology); Walter Delpero, Ottawa, ON (cataract and strabismus); Mark Greve, Edmonton, AB (retina and teleophthalmology); Vladimir Kozousek, Halifax, NS (medical retina); Wai-Ching Lam, Toronto, ON (retina and research); David A.L. Maberley, Vancouver, BC (retina)
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Khalaf K, Al-Angari HM, Khandoker AH, Lee S, Almahmeed W, Al Safar HS, Jelinek HF. Gait alterations in the UAE population with and without diabetic complications using both traditional and entropy measures. Gait Posture 2017; 58:72-77. [PMID: 28756345 DOI: 10.1016/j.gaitpost.2017.07.109] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/12/2017] [Accepted: 07/20/2017] [Indexed: 02/02/2023]
Abstract
Diabetic foot, one of the most common and debilitating manifestations of type 2 diabetes mellitus (T2DM), is the leading cause of worldwide non-traumatic lower extremity amputations. Diabetics who are at risk of ulceration are currently mainly identified by a thorough clinical examination of the feet, which typically does not show clear symptoms during the early stages of disease progression. In this study, we used a non-linear dynamics tool, gait entropy (GaitEN), in addition to traditional linear gait analysis methods, to investigate gait alterations amongst diabetic patients with combinations of three types of T2DM related complications: retinopathy, diabetic peripheral neuropathy (DPN) and nephropathy. Peak plantar pressure (PPP) was not significantly different in the group with DPN as compared to the control group (diabetics with no complications, CONT) in the forefoot region (DPN: mean±SD: 396±69.4kPa, CONT: 409±68.9kPa), although it was significantly lower in the heel region (DPN: mean±SD: 285±43.1.4kPa, CONT: 295±61.8kPa). On the other hand, gait entropy was significantly lower for the DPN compared to CONT group (DPN: 0.95±0.34, CONT: 1.03±0.28, p<0.05). The significant low entropy was maintained when neuropathy was combined with either retinopathy or nephropathy. For the group with all three complications (ALL-C), the entropy was higher than CONT (ALL-C: 1.07±0.26). This may indicate an intrinsic sensorimotor feedback mechanism for the DPN patients to regulate their gait. However, this feedback gets weaker as patients develop multiple complications. Further analysis with longer walking time and different speeds is needed to verify the entropy results.
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Affiliation(s)
- Kinda Khalaf
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, Po Box 127788, United Arab Emirates.
| | | | - Ahsan H Khandoker
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, Po Box 127788, United Arab Emirates; Melbourne School of Engineering, The University of Melbourne, VIC 3010, Australia
| | - Sungmun Lee
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, Po Box 127788, United Arab Emirates
| | - Wael Almahmeed
- Institute of Cardiac Science, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates; Heart and Vascular Institute, Cleveland Clinic, Abu Dhabi, United Arab Emirates
| | - Habiba S Al Safar
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, Po Box 127788, United Arab Emirates; Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
| | - Herbert F Jelinek
- School of Community Health, Charles Sturt University, Albury, NSW, Sydney, Australia; Australian School of Advanced Medicine, Macquarie University, Sydney, Australia
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Khandoker AH, Al-Angari HM, Khalaf K, Lee S, Almahmeed W, Al Safar HS, Jelinek HF. Association of Diabetes Related Complications with Heart Rate Variability among a Diabetic Population in the UAE. PLoS One 2017; 12:e0168584. [PMID: 28107340 PMCID: PMC5249190 DOI: 10.1371/journal.pone.0168584] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 12/02/2016] [Indexed: 01/06/2023] Open
Abstract
Microvascular, macrovascular and neurological complications are the key causes of morbidity and mortality among type II diabetes mellitus (T2DM) patients. The aim of this study was to investigate the alterations of cardiac autonomic function of diabetic patients in relation to three types of diabetes-related complications. ECG recordings were collected and analyzed from 169 T2DM patients in supine position who were diagnosed with nephropathy (n = 55), peripheral neuropathy (n = 64) and retinopathy (n = 106) at two hospitals in the UAE. Comparison between combinations of patients with complications and a control diabetic group (CONT) with no complication (n = 34) was performed using time, frequency and multi-lag entropy measures of heart rate variability (HRV). The results show that these measures decreased significantly (p<0.05) depending on the presence and type of diabetic complications. Entropy, (median, 1st- 3rd interquartile range) for the group combining all complications (1.74,1.37-2.09) was significantly lower than the corresponding values for the CONT group (1.77, 1.39-2.24) with lag-1 for sequential beat-to-beat changes. Odds ratios (OR) from the entropy analysis further demonstrated a significantly higher association with the combination of retinopathy and peripheral neuropathy versus CONT (OR: 1.42 at lag 8) and an even OR for the combination of retinopathy and nephropathy (OR: 2.46 at lag 8) compared to the other groups with complications. Also, the OR of low frequency power to high frequency power ratio (LF/HF) showed a higher association with these diabetic-related complications compared to CONT, especially for the patient group combining all complications (OR: 4.92). This study confirms that the type of microvascular or peripheral neuropathy complication present in T2DM patients have different effects on heart rate entropy, implying disorders of multi-organ connectivity are directly associated with autonomic nervous system dysfunction. Clinical practice may benefit from including multi-lag entropy for cardiac rhythm analysis in conjunction with traditional screening methods in patients with diabetic complications to ensure better preventive and treatment outcomes in the Emirati Arab population.
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Affiliation(s)
- Ahsan H. Khandoker
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | | | - Kinda Khalaf
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Sungmun Lee
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Wael Almahmeed
- Institute of Cardiac Science, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
- Heart and Vascular Institute, Cleveland Clinic, Abu Dhabi, United Arab Emirates
| | - Habiba S. Al Safar
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
| | - Herbert F. Jelinek
- School of Community Health, Charles Sturt University, Albury, New South Wales, Australia
- Australian School of Advanced Medicine, Macquarie University, Sydney, New South Wales, Australia
- * E-mail:
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Jelinek HF, Osman WM, Khandoker AH, Khalaf K, Lee S, Almahmeed W, Alsafar HS. Clinical profiles, comorbidities and complications of type 2 diabetes mellitus in patients from United Arab Emirates. BMJ Open Diabetes Res Care 2017; 5:e000427. [PMID: 28878941 PMCID: PMC5574445 DOI: 10.1136/bmjdrc-2017-000427] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 05/31/2017] [Accepted: 06/28/2017] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE To assess clinical profiles of patients with type 2 diabetes in the United Arab Emirates (UAE), including patterns, frequencies, and risk factors of microvascular and macrovascular complications. RESEARCH DESIGN AND METHODS Four hundred and ninety patients with type 2 diabetes were enrolled from two major hospitals in Abu Dhabi. The presence of microvascular and macrovascular complications was assessed using logistic regression, and demographic, clinical and laboratory data were collected. Significance was set at p<0.05. RESULTS Hypertension (83.40%), obesity (90.49%) and dyslipidemia (93.43%) were common type 2 diabetes comorbidities. Most of the patients had relatively poor glycemic control and presented with multiple complications (83.47% of patients had one or more complication), with frequent renal involvement. The most frequent complication was retinopathy (13.26%). However, the pattern of complications varied based on age, where in patients <65 years, a single pattern presented, usually retinopathy, while multiple complications was typically seen in patients >65 years old. Low estimated glomerular filtration rate in combination with disease duration was the most significant risk factor in the development of a diabetic-associated complication especially for coronary artery disease, whereas age, lipid values and waist circumference were significantly associated with the development of diabetic retinopathy. CONCLUSIONS Patients with type 2 diabetes mellitus in the UAE frequently present with comorbidities and complications. Renal disease was found to be the most common comorbidity, while retinopathy was noted as the most common diabetic complication. This emphasizes the need for screening and prevention program toward early, asymptomatic identification of comorbidities and commence treatment, especially for longer disease duration.
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Affiliation(s)
- Herbert F Jelinek
- School of Community Health, Charles Sturt University, Albury, Australia
- Australian School of Advanced Medicine, Macquarie University, Sydney, Australia
| | - Wael M Osman
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
| | - Ahsan H Khandoker
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Kinda Khalaf
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Sungmun Lee
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Wael Almahmeed
- Institute of Cardiac Science, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
- Heart and Vascular Institute, Cleveland Clinic, Abu Dhabi, United Arab Emirates
| | - Habiba S Alsafar
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
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Radda S, Bolz M, Egger S, Gasser-Steiner V, Kralinger M, Mennel S, Scholda C, Stolba U, Wedrich A, Krepler K. [Diagnosis, treatment and monitoring of diabetic eye control]. Wien Klin Wochenschr 2016; 128 Suppl 2:S97-102. [PMID: 27052229 DOI: 10.1007/s00508-016-0983-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Diabetes mellitus can cause diabetic retinopathy, diabetic macular edema, optic neuropathy, cataract or dysfunction of the eye muscles. The incidence of these defects correlates with disease duration and quality of metabolic control. Recommendations of the Austrian Diabetes Association for diagnosis, therapeutic procedures and requirements for adequate follow up depending on stage of diabetic eye disease are summarized.
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Affiliation(s)
- Stephan Radda
- Abteilung für Augenheilkunde, Hanuschkrankenhaus, Wien, Österreich.
- Netzhautkommission, Österreichische Ophthalmologische Gesellschaft, Wien, Österreich.
| | - Matthias Bolz
- Abteilung für Augenheilkunde, Allgemeines Krankenhaus Linz, Linz, Österreich
- Netzhautkommission, Österreichische Ophthalmologische Gesellschaft, Wien, Österreich
| | - Stefan Egger
- Universitätsklinik für Augenheilkunde, Landeskrankenhaus Salzburg - Universitätsklinikum Salzburg, Salzburg, Österreich
- Netzhautkommission, Österreichische Ophthalmologische Gesellschaft, Wien, Österreich
| | - Vanessa Gasser-Steiner
- Universitätsklinik für Augenheilkunde, Medizinische Universität Graz, Graz, Österreich
- Netzhautkommission, Österreichische Ophthalmologische Gesellschaft, Wien, Österreich
| | - Martina Kralinger
- Universitätsklinik für Augenheilkunde, Medizinische Universität Innsbruck, Innsbruck, Österreich
- Netzhautkommission, Österreichische Ophthalmologische Gesellschaft, Wien, Österreich
| | - Stefan Mennel
- Abteilung für Augenheilkunde, Landeskrankenhaus Feldkirch, Feldkirch, Österreich
- Netzhautkommission, Österreichische Ophthalmologische Gesellschaft, Wien, Österreich
| | - Christoph Scholda
- Universitätsklinik für Augenheilkunde, Medizinische Universität Wien, Wien, Österreich
- Netzhautkommission, Österreichische Ophthalmologische Gesellschaft, Wien, Österreich
| | - Ulrike Stolba
- Abteilung für Augenheilkunde, Krankenanstalt Rudolfstiftung der Stadt Wien, Wien, Österreich
- Netzhautkommission, Österreichische Ophthalmologische Gesellschaft, Wien, Österreich
| | - Andreas Wedrich
- Universitätsklinik für Augenheilkunde, Medizinische Universität Graz, Graz, Österreich
- Netzhautkommission, Österreichische Ophthalmologische Gesellschaft, Wien, Österreich
| | - Katharina Krepler
- Universitätsklinik für Augenheilkunde, Medizinische Universität Wien, Wien, Österreich
- Netzhautkommission, Österreichische Ophthalmologische Gesellschaft, Wien, Österreich
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[Diagnosis, therapy and follow up of diabetic eye disease]. Wien Klin Wochenschr 2012; 124 Suppl 2:50-7. [PMID: 23250460 DOI: 10.1007/s00508-012-0272-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Diabetes mellitus causes diabetic retinopathy, diabetic macular edema, optic neuropathy, cataract or dysfunction of the eye muscles. The incidence of these defects correlates with disease duration and quality of the metabolic control. The recommendations of the Austrian Diabetes Association for the diagnosis, the therapeutic procedures and requirements for adequate follow up depending on the stages of the different forms of diabetic eye disease are summarized.
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Hooper P, Boucher MC, Cruess A, Dawson KG, Delpero W, Greve M, Kozousek V, Lam WC, Maberley DAL. Canadian Ophthalmological Society evidence-based clinical practice guidelines for the management of diabetic retinopathy. Can J Ophthalmol 2012; 47:S1-30, S31-54. [PMID: 22632804 DOI: 10.1016/j.jcjo.2011.12.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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13
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Sivaprasad S, Gupta B, Crosby-Nwaobi R, Evans J. Prevalence of diabetic retinopathy in various ethnic groups: a worldwide perspective. Surv Ophthalmol 2012; 57:347-70. [PMID: 22542913 DOI: 10.1016/j.survophthal.2012.01.004] [Citation(s) in RCA: 219] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 01/17/2012] [Accepted: 01/18/2012] [Indexed: 01/10/2023]
Abstract
The alarming rise in diabetes prevalence is a global public health and economic problem. Diabetic retinopathy is the most common complication of diabetes and the leading cause of blindness among working-age populations in the Western world. Screening and prompt treatment of diabetic retinopathy are not top priorities in many regions of the world, because the impacts of other causes of preventable blindness remain an issue. Ethnicity is a complex, independent risk factor for diabetic retinopathy. Observations from white populations cannot be extrapolated fully to other ethnic groups. The prevalence of diabetic retinopathy, sight-threatening diabetic retinopathy, and clinically significant macular edema are higher in people of South Asian, African, Latin American, and indigenous tribal descent compared to the white population. Although all ethnic groups are susceptible to the established risk factors of diabetic retinopathy-such as length of exposure and severity of hyperglycemia, hypertension, and hyperlipidemia-ethnic-specific risk factors also may influence these rates. Such risk factors may include differential susceptibility to conventional risk factors, insulin resistance, differences in anthropometric measurements, truncal obesity, urbanization, variations in access to healthcare systems, genetic susceptibility, and epigenetics. The rates of nonproliferative diabetic retinopathy appear to be declining in the United States, supporting the observation that better medical management of diabetes and prompt treatment of sight-threatening diabetic retinopathy substantially improve the long-term diabetic retinopathy incidence; studies from other parts of the world are limited and do not mirror this finding, however. We examine the ethnicity and region-based prevalence of diabetic retinopathy around the world and highlight the need to reinforce ethnicity-based screening and treatment thresholds in diabetic retinopathy.
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Affiliation(s)
- Sobha Sivaprasad
- King's College Hospital NHS Foundation Trust, Denmark Hill, London, UK.
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Ting DSW, Ng JQ, Morlet N, Yuen J, Clark A, Taylor HR, Keeffe J, Preen DB. Diabetic retinopathy management by Australian optometrists. Clin Exp Ophthalmol 2011; 39:230-5. [PMID: 20973897 DOI: 10.1111/j.1442-9071.2010.02446.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND To survey the current diabetic retinopathy screening and management practices of Australian optometrists following the release of the 1997 National Health Medical Research Council Diabetic Retinopathy Management Guidelines. DESIGN Cross-sectional national survey, primary care setting. PARTICIPANTS 1000 Australian optometrists across different states. METHODS A self-administered questionnaire was sent to 1000 optometrists across all states during 2007/2008. MAIN OUTCOME MEASURES Use of retinal camera, screening practices/attitudes and behaviour in diabetic retinopathy management. RESULTS 568 optometrists (57%) responded to the survey. Patients' unpreparedness to drive post dilation (51%) and the fear of angle closure glaucoma (13%) were the two main barriers to optometrists not performing dilated ophthalmoscopy. Those who had strong desire to screen for diabetic retinopathy were more likely to use a retinal camera (p<0.005). Use of a retinal camera was significantly associated with an increased confidence in detecting clinical signs of diabetic retinopathy including macular oedema (P<0.001). Optometrists who read the guidelines at least once were 2.5-times (P<0.001) more likely to have confidence in detecting macular oedema than those who had never read the guidelines. Although they may be confident in diagnosis, and may use retinal cameras for screening, nearly 60% of optometrists would not refer patients with macular oedema to an ophthalmologist. CONCLUSIONS Despite their self-reported desire for involvement in diabetic retinopathy, the management of macular oedema by Australian optometrists needs improvement. The use of retinal cameras and promotion of the 2008 NHMRC guidelines should be encouraged to improve overall optometric diabetic retinopathy management, particularly with macular oedema.
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Affiliation(s)
- Daniel S W Ting
- Eye and Vision Epidemiology Research Group, Centre for Health Services Research, School of Population Health, University of Western Australia, Australia.
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Beaumont P, Madigan MC, Mathew RS. Crisis in optometric screening of diabetic retinopathy: illusion or reality. Clin Exp Ophthalmol 2011; 39:193-4. [DOI: 10.1111/j.1442-9071.2011.02541.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yuen J, Clark A, Ng JQ, Morlet N, Keeffe J, Taylor HR, Preen DB. Further survey of Australian ophthalmologist's diabetic retinopathy management: did practice adhere to National Health and Medical Research Council guidelines? Clin Exp Ophthalmol 2010; 38:613-9. [DOI: 10.1111/j.1442-9071.2010.02326.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Boucher MC, Desroches G, Garcia-Salinas R, Kherani A, Maberley D, Olivier S, Oh M, Stockl F. Teleophthalmology screening for diabetic retinopathy through mobile imaging units within Canada. Can J Ophthalmol 2009; 43:658-68. [PMID: 19020631 DOI: 10.3129/i08-120] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
BACKGROUND This study aimed to describe and measure the health results of a Category 3 teleophthalmology screening project for diabetic retinopathy (DR). Implemented through mobile screening imaging units located within pharmacies, the project had the goal of reaching unscreened diabetic patients in urban communities while lowering barriers to screening and saving medical resources. METHODS Image capture of both eyes of 3505 known diabetic individuals was performed in the provinces of Quebec, British Columbia, Alberta, Manitoba, and Saskatchewan. A photographer performed fundus imaging, and a nurse used mild pupil dilation only when necessary to secure image quality. Screening was provided free of cost in the context of DR health days for DR screening. Through teleophthalmology, ophthalmologists proceeded with data and image interpretation, and timely referral when indicated. RESULTS This project allowed the resumption of screening of over 38% of the cohort of known diabetics who reported never having undergone any eye examination with pupil dilation, and an additional 30% who reported not having been examined for over 2 years. All known diabetics were under the care of a general physician, and their mean diabetes duration, when known, was 8 years. DR pathology was found in 22.5% (20%-28%) of the cohort, 1.8% requiring urgent referral (within 30 days) as a result of the severity of the DR and 0.6% (0%-1.8%) requiring urgent referral for other reasons. An additional 8.7% (8.1%-19.5%) required ophthalmologic attention within 6 months because of DR and another 2.0% (0%-6.3%) between 6 months and 1 year. Incidental findings were found in 23%, the majority of which were related to cataract and dry macular degeneration. Urgent or significant incidental findings were found in 0.6% of the screened eyes. Pupil dilation with tropicamide 1% was deemed useful or necessary in 33.7% of the cohort. For 0.7% of the cohort, the images could not be interpreted because of poor image quality and for that reason had to be referred for a traditional dilated eye examination. Ophthalmologists were relieved of the examination of 85.6% of the screened diabetic individuals who benefited from screening without requiring a traditional ophthalmologic examination. On the other hand, ophthalmologists were required to provide urgent (within 30 days) services to 2% of the cohort, either because of threatening DR or because of incidental findings requiring rapid ophthalmologic attention. INTERPRETATION This screening strategy for DR through mobile teleophthalmology imaging units efficiently lowered barriers to screening and created new screening opportunities for a large number of known diabetic individuals who were lost to the traditional health system. It has the potential to provide better outreach to diabetic populations while identifying individuals truly in need of the services of an ophthalmologist; at the same time it maximizes the use of limited ophthalmologic resources while favouring multidisciplinary collaborations. The significant incidental findings associated with screening highlight the need for ophthalmologic competencies during DR screening within a teleophthalmology approach. Further involvement of government health authorities is pivotal in embracing the opportunities provided by emerging technologies such as teleophthalmology and translating them into better outreach services to diabetic populations and thus better visual health results.
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Tucker D, Rousculp M, Girach A, Palmer A, Valentine W. Investigating the links between retinopathy, macular edema and visual acuity in patients with diabetes. EXPERT REVIEW OF OPHTHALMOLOGY 2008. [DOI: 10.1586/17469899.3.6.673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Stur M, Egger S, Haas A, Kieselbach G, Mennel S, Michl R, Roden M, Stolba U, Wedrich A. Diagnose, Therapie und Verlaufskontrolle der diabetischen Augenerkrankung. SPEKTRUM DER AUGENHEILKUNDE 2006. [DOI: 10.1007/bf03163807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Diabetic retinopathy (DR) is the leading cause of blindness in young adults in the United States. Early identification and treatment of DR can decrease the risk of vision loss in affected patients. This clinical report reviews the risk factors for the development of DR and screening guidance for pediatric patients with type 1 diabetes mellitus.
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Williams R, Airey M, Baxter H, Forrester J, Kennedy-Martin T, Girach A. Epidemiology of diabetic retinopathy and macular oedema: a systematic review. Eye (Lond) 2004; 18:963-83. [PMID: 15232600 DOI: 10.1038/sj.eye.6701476] [Citation(s) in RCA: 304] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
AIMS To systematically review the literature on the prevalence and incidence of diabetic retinopathy (DR) and macular oedema (MO). METHODS A search of the bibliographic databases (Medline, Embase, CINAHL) was conducted up to October 2001. Selected relevant studies were scrutinized and included in the review. RESULTS A total of 359 studies were included. The studies were reported in nearly 100 different journals and in over 50 countries. The majority of the studies were US-based, with large studies such as the Wisconsin Epidemiologic Study of Diabetic Retinopathy dominating the literature. The studies were quite dated and highly heterogeneous in nature in terms of patient selection with variable inclusion criteria (age range, gender, diabetes duration and type, ethnicity, comorbidity, and DR status, assessment, and classification). CONCLUSIONS There are inconsistencies between epidemiological studies, and differences in study methods may contribute to conflicting reports of prevalence and incidence of DR and MO in diabetic populations. As new therapies for DR and its associated complications emerge, the need to capture and monitor new epidemiological data becomes increasingly important to be able to assess the impact and effectiveness of these therapies. Robust, longitudinal capture of patient data is, therefore, essential to evaluate the impact of current practice on the epidemiology of diabetic eye complications.
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Affiliation(s)
- R Williams
- The Clinical School, University of Wales Swansea, Swansea, UK.
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Stur M, Egger S, Haas A, Kieselbach G, Mennel S, Michl R, Roden M, Wedrich A. Praxis-Richtlinien der Österreichischen Diabetesgesellschaft. SPEKTRUM DER AUGENHEILKUNDE 2004. [DOI: 10.1007/bf03163604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Schmid KL, Swann PG, Pedersen C, Schmid LM. The detection of diabetic retinopathy by Australian optometrists. Clin Exp Optom 2002; 85:221-8. [PMID: 12135414 DOI: 10.1111/j.1444-0938.2002.tb03041.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2002] [Revised: 06/06/2002] [Accepted: 06/18/2002] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Diabetes mellitus is a systemic disease affecting approximately 750,000 Australians of whom more than 70,000 are Queenslanders. It can have serious ocular consequences and patients with diabetes require regular eye examinations to determine the degree of ocular involvement and the stage of retinopathy, if present. It is important that optometrists detect diabetic retinal changes and refer appropriately. We sought to determine the proficiency of optometrists at detecting retinal changes caused by diabetes. METHODS The study comprised four parts: 1. Nineteen randomly recruited Australian optometrists practising in Queensland completed a questionnaire on their experiences seeing patients with diabetes. 2. They examined the ocular fundi of 10 patients. 3. They viewed retinal slides of 12 additional cases. 4. They attended a follow-up seminar on diabetes and the cases. They were informed that the patients did not necessarily have diabetes and instructed not to discuss the condition with the patient or their colleagues. The optometrists were allowed seven minutes per station to examine the patient or the slides and write down their responses before moving to the next station. RESULTS When the slides and patients were considered together, cases where diabetic retinopathy was present were correctly identified by 94.0 per cent of the optometrists and cases where retinopathy was not present were correctly identified by 93.6 per cent of the optometrists. When all assessments were considered together, the correct detection/differential diagnosis rate was 88.3 per cent. Sub-classification of diabetic retinopathy severity agreed with that of the reference examiners in 58.3 per cent of assessments and there was agreement on management in 79.4 per cent of cases. Of the 22 assessments undertaken by each optometrist, there were, on average, 2.5 errors. CONCLUSION Randomly selected Australian optometrists are able to detect and grade diabetic retinal changes solely by retinal examination and refer the patients requiring specialist care.
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Affiliation(s)
- Katrina L Schmid
- Centre for Eye Research, School of Optometry, Queensland University of Technology, Kelvin Grove, QLD, 4059, Australia
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McCarty CA, Wright S, McKay R, Taylor KI, Keeffe JE. Changes in management of diabetic retinopathy by Australian ophthalmologists as a result of the NHMRC clinical guidelines. Clin Exp Ophthalmol 2001; 29:230-4. [PMID: 11545421 DOI: 10.1046/j.1442-9071.2001.00428.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
PURPOSE To document changes in management of diabetic retinopathy by Australian ophthalmologists after release of the National Health and Medical Research Council (NHMRC) clinical guidelines. METHODS Self-administered questionnaires were mailed to Australian ophthalmologists prior to release of the NHMRC guidelines for the management of diabetic retinopathy, and at one and 2.5 years after release of the guidelines. The questionnaires elicited information about current management practices in relation to diabetic retinopathy RESULTS The response rate for the baseline and two follow-up surveys was 82%, 81%, and 80%, respectively. More than 85% of the ophthalmologists responded that the guidelines were useful in improving management, were easy to understand, and were already part of their routine clinical practice. A relatively small percentage (12%) felt that the guidelines made recommendations that were not practical or feasible. Contrary to the NHMRC guidelines, at the second follow-up survey, only 50% of the ophthalmologists said that they would almost never perform fluorescein angiography in eyes with mild non-proliferative diabetic retinopathy. The change from baseline to the second follow-up in the percentage of ophthalmologists who would perform cataract surgery after treating clinically significant macular oedema (as advised by the NHMRC guidelines) was statistically significant (baseline = 83.7%, 95% confidence limit = 80.4, 87.0; second follow up = 90.4, 95% confidence limit = 87.3, 93.5). CONCLUSIONS Distribution of the printed NHMRC Clinical Practice Guidelines: Management of Diabetic Retinopathy and full colour Retinopathy Chart resulted in a significant change in the recommended order of treatment of clinically significant macular oedema. However no significant change in the use of fluorescein angiography was documented.
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Affiliation(s)
- C A McCarty
- Centre for Eye Research Australia, University of Melbourne, Royal Victorian Eye and Ear Hospital, Australia
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Wright SE, McKay R, Taylor KI, Keeffe JE, McCarty CA. Changes in attitudes and practices of optometrists in their management of diabetic retinopathy after the release of NHMRC guidelines. National Health and Medical Research Council. Clin Exp Ophthalmol 2001; 29:121-4. [PMID: 11446449 DOI: 10.1046/j.1442-9071.2001.00390.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The purpose of this study was to document attitudes and practices of Australian optometrists in their management of diabetic retinopathy prior to the release of the National Health and Medical Research Council (NHMRC) Clinical Practice Guidelines for the Management of Diabetic Retinopathy and at two time points following their release. A self-administered questionnaire was mailed to a stratified random sample of 500 Australian optometrists at the three time points. The same sample was used for the first two surveys and a new random sample was drawn for the second follow-up survey. The response to the three questionnaires was 86%, 80% and 84%, respectively. More than 90% of optometrists reported receiving a copy of the guidelines and 82% reported receiving the supplementary Retinopathy Chart. Fifty-seven per cent reported having read the guidelines at least once in entirety and 65% reported that they refer to the Retinopathy Chart at least monthly in their clinical practice. There was a significant decrease in the number of optometrists who reported that patient unwillingness to be dilated and their fear of precipitating angle closure glaucoma were moderate or major barriers to performing dilated ophthalmoscopy. Concomitantly, the percentage of optometrists who reported that they often or always perform dilated ophthalmoscopy on new patients with diabetes increased significantly from 74.5% (95% confidence limit = 70.2, 78.8) to 81.5% (95% confidence limit = 77.5, 85.5). There have been some significant changes in the self-reported management practices of optometrists in relation to diabetic retinopathy since the release of the NHMRC guidelines and Retinopathy Chart.
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Affiliation(s)
- S E Wright
- Centre for Eye Research Australia, University of Melbourne, Victoria.
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