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Ofori EK, Nketiah-Dwomo I, Tagoe EA, Amponsah SK, Adams I, Nyarko ENY, Amanquah SD. Comparative Determination of Glomerular Filtration Rate Estimation Formulae in Type 2 Diabetic Patients: An Observational Study. BIOMED RESEARCH INTERNATIONAL 2024; 2024:9532236. [PMID: 38903148 PMCID: PMC11189678 DOI: 10.1155/2024/9532236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 03/02/2024] [Accepted: 05/02/2024] [Indexed: 06/22/2024]
Abstract
Assessing glomerular filtration rate (GFR) involves collecting timed urine samples for 24 hours, requiring significant time and resources in the clinical setting. Using predictive GFR formulae to assess renal function may be a better alternative. Our goal was to determine which predictive GFR formula had the highest level of concordance with the GFR that has been measured in a resource-poor setting. This is an observational study. We selected fifty (50) individuals diagnosed with type 2 diabetes (T2DM) in Kumasi, Ghana. The sociodemographic and clinical characteristics were obtained using a structured questionnaire. Urine was obtained from each subject over 24 hours. The levels of glucose (FBG) and creatinine in patients' blood, as well as the levels of creatinine in their urine, were measured after the patients had fasted overnight. Participants had a mean age of 57.4 ± 10.7 (years), BMI of 27.8 ± 4.1 (kg/m2), FBG of 9.0 ± 3.1 (mmol/L), and creatinine concentrations of 95.6 ± 29.1 (μmol/L). A Krouwer plot was used to compare the measured GFR with three formulae: Chronic Kidney Disease Epidemiology (CKD-EPI), Modification of Diet in Renal Disease (MDRD), and Cockroft-Gault (CG) for GFR prediction. Among the 3 estimates, CG showed nonsignificance (p > 0.05) with the measured GFR. The primary finding was that the GFR calculated using the CG formula was not different from the GFR measured, suggesting that CG is the most appropriate alternative GFR estimate among a cross-section of T2DM patients in Ghana.
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Affiliation(s)
| | | | | | | | - Ismaila Adams
- Department of Medical PharmacologyU.G.M.S.University of Ghana, Accra, Ghana
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Zhou W, Yuan XJ, Li J, Wang W, Zhang HQ, Hu YY, Ye SD. Application of non-mydriatic fundus photography-assisted telemedicine in diabetic retinopathy screening. World J Diabetes 2024; 15:251-259. [PMID: 38464369 PMCID: PMC10921172 DOI: 10.4239/wjd.v15.i2.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/10/2023] [Accepted: 01/12/2024] [Indexed: 02/04/2024] Open
Abstract
BACKGROUND Early screening and accurate staging of diabetic retinopathy (DR) can reduce blindness risk in type 2 diabetes patients. DR's complex pathogenesis involves many factors, making ophthalmologist screening alone insufficient for prevention and treatment. Often, endocrinologists are the first to see diabetic patients and thus should screen for retinopathy for early intervention. AIM To explore the efficacy of non-mydriatic fundus photography (NMFP)-enhanced telemedicine in assessing DR and its various stages. METHODS This retrospective study incorporated findings from an analysis of 93 diabetic patients, examining both NMFP-assisted telemedicine and fundus fluorescein angiography (FFA). It focused on assessing the concordance in DR detection between these two methodologies. Additionally, receiver operating characteristic (ROC) curves were generated to determine the optimal sensitivity and specificity of NMFP-assisted telemedicine, using FFA outcomes as the standard benchmark. RESULTS In the context of DR diagnosis and staging, the kappa coefficients for NMFP-assisted telemedicine and FFA were recorded at 0.775 and 0.689 respectively, indicating substantial intermethod agreement. Moreover, the NMFP-assisted telemedicine's predictive accuracy for positive FFA outcomes, as denoted by the area under the ROC curve, was remarkably high at 0.955, within a confidence interval of 0.914 to 0.995 and a statistically significant P-value of less than 0.001. This predictive model exhibited a specificity of 100%, a sensitivity of 90.9%, and a Youden index of 0.909. CONCLUSION NMFP-assisted telemedicine represents a pragmatic, objective, and precise modality for fundus examination, particularly applicable in the context of endocrinology inpatient care and primary healthcare settings for diabetic patients. Its implementation in these scenarios is of paramount significance, enhancing the clinical accuracy in the diagnosis and therapeutic management of DR. This methodology not only streamlines patient evaluation but also contributes substantially to the optimization of clinical outcomes in DR management.
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Affiliation(s)
- Wan Zhou
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Xiao-Jing Yuan
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Jie Li
- Department of Endocrinology, Anhui Provincial Hospital, Affiliated to Anhui Medical University, Hefei 230001, Anhui Province, China
| | - Wei Wang
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Hao-Qiang Zhang
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Yuan-Yuan Hu
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Shan-Dong Ye
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
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Lin CC, Lee CY, Huang JY, Hsu SM, Hung JH, Yang SF. Trends in diabetic eye disorders and associated comorbidities in Taiwan: a 10-year nationwide population-based cohort study. Br J Ophthalmol 2023; 107:1303-1310. [PMID: 35396213 DOI: 10.1136/bjophthalmol-2021-320917] [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] [Received: 12/09/2021] [Accepted: 03/26/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND/AIMS In-depth analysis is needed to investigate trends in diabetic retinopathy (DR), diabetic macular oedema (DME) and associated comorbidities in patients with type 2 diabetes mellitus (T2DM) so that we can better understand their prevalence and incidence. METHODS A retrospective population-based study was conducted using data from Taiwan's National Health Insurance Research Database from 2005 to 2015, and T2DM, DR and associated comorbidities were identified based on diagnostic codes. We used a standardised incidence rate with age and sex adjustment to estimate the prevalence and incidence of DR, proliferative DR (PDR), advanced PDR (aPDR) and DME, while the difference in each study period was calculated as the annual percentage change. We used the absolute standardised difference to analyse changes in related comorbidities in different periods. RESULTS The population of patients with DM increased over 50% between 2005 and 2015, while the prevalence and incidence of DR decreased, as did the incidence of PDR and aPDR. However, the prevalence and incidence of DME increased over the course of 10 years, with an upward trend in all forms of DR. The percentage of patients with hyperlipidaemia in DME and all DR increased, and the percentage of patients with end-stage renal disease (ESRD) was also elevated in DME. CONCLUSION The prevalence and incidence of DR, PDR and aPDR decreased with time in patientsT2DM, while the ratio of DME increased gradually. The incidence of hyperlipidaemia also increased in all forms of diabetic eye disorders, while ESRD increased solely in DME.
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Affiliation(s)
- Chia-Chen Lin
- Department of Ophthalmology, National Cheng Kung University Hospital, Tainan, Taiwan
| | | | - Jing-Yang Huang
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Sheng-Min Hsu
- Department of Ophthalmology, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Jia-Horung Hung
- Department of Ophthalmology, National Cheng Kung University Hospital, Tainan, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shun-Fa Yang
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
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Sauesund ES, Jørstad ØK, Brunborg C, Moe MC, Erke MG, Fosmark DS, Petrovski G. A Pilot Study of Implementing Diabetic Retinopathy Screening in the Oslo Region, Norway: Baseline Results. Biomedicines 2023; 11:biomedicines11041222. [PMID: 37189840 DOI: 10.3390/biomedicines11041222] [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: 03/22/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/17/2023] Open
Abstract
PURPOSE to gain insight into the baseline parameters of a population with diabetes mellitus (DM) included in a pilot diabetic retinopathy (DR) screening program at Oslo University Hospital (OUH), Norway. METHODS This was a cross-sectional study of a cohort of adult patients (≥18 years) with type 1 or 2 DM (T1D and T2D). We measured the best-corrected visual acuity (BCVA), blood pressure (BP), heart rate (HR), intraocular pressure (IOP), height and weight. We also collected HbA1c, total serum cholesterol and urine-albumin, -creatinine and -albumin-to-creatinine ratio (ACR), as well as socio-demographic parameters, medications and previous screening history. We obtained color fundus photographs, which were graded by two experienced ophthalmologists according to the International Clinical Disease Severity Scale for DR. RESULTS The study included 180 eyes of 90 patients: 12 patients (13.3%) had T1D and 78 (86.7%) had T2D. In the T1D group, 5 patients (41.7%) had no DR, and 7 (58.3%) had some degree of DR. In the T2D group, 60 patients (76.9%) had no DR, and 18 (23.1%) had some degree of DR. None of the patients had proliferative DR. Of the 43 patients not newly diagnosed (time of diagnosis > 5 years for T1D and >1 years for T2D), 37.5% of the T1D patients and 5.7% of the T2D patients had previously undergone regular screening. Univariate analyses found for the whole cohort significant associations between DR and age, HbA1c, urine albumin-to-creatinine ratio, body mass index (BMI) and duration of DM. For the T2D group alone, there were significant associations between DR and HbA1c, BMI, urine creatinine, urine albumin-to-creatinine ratio and duration of DM. The analysis also showed three times higher odds for DR in the T1D group than the T2D group. CONCLUSIONS This study underscores the need for implementing a systematic DR screening program in the Oslo region, Norway, to better reach out to patients with DM and improve their screening adherence. Timely and proper treatment can prevent or mitigate vision loss and improve the prognosis. A considerable number of patients were referred from general practitioners for not being followed by an ophthalmologist.Among patients not newly diagnosed with DM, 62.8% had never had an eye exam, and the duration of DM for these patients was up to 18 years (median: 8 years).
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Affiliation(s)
- Ellen Steffenssen Sauesund
- Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0450 Oslo, Norway
| | | | - Cathrine Brunborg
- Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, 0450 Oslo, Norway
| | - Morten Carstens Moe
- Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0450 Oslo, Norway
| | - Maja Gran Erke
- Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway
| | - Dag Sigurd Fosmark
- Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway
| | - Goran Petrovski
- Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0450 Oslo, Norway
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Ranganathan RS, K EV, R S, Manimozhian N. High Fasting Blood Sugar and Increased Waist Circumference as Risk Factors for Diabetic Retinopathy in Type 2 Diabetes Patients Older than 45 Years. Cureus 2022; 14:e28291. [PMID: 36158357 PMCID: PMC9494576 DOI: 10.7759/cureus.28291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/19/2022] [Indexed: 11/29/2022] Open
Abstract
Introduction Diabetes mellitus (DM) has a long-term impact on retinal micro-blood vessels, culminating in the progression of diabetic retinopathy (DR); however; screening for DR is not widely used due to a lack of accessibility and economic constraints, especially in resource-limited settings. Thus, a longitudinal marker that is associated with the development of DR is required. This study sought to assess the association of DR with fasting blood sugar (FBS) levels and waist circumference. Methodology A cross-sectional study was conducted in a tertiary care hospital for one year. All individuals diagnosed with Type 2 DM (T2DM) and ≥45 years of age were included in the study. Individuals with fasting blood glucose levels of <126 mg/dl and <3 years of diagnosis with T2DM were excluded from the study. Individuals having one or more retinal microaneurysms or retinal blot hemorrhages, with or without any additional abnormalities, were diagnosed with DR. The results were analyzed using SPSS version 21 (IBM Corp., Armonk, NY). Results The prevalence of diabetic retinopathy among the study participants was 67.6 %. There was a significant association between increasing waist circumference (p = 0.009) and High FBS levels (p = 0.032) with the presence of DR. Conclusion Approximately two-thirds of the patients with T2DM aged >45 years and above have diabetic retinopathy. High FBS and waist circumference were associated with DR.
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