Knowledge and practice of diabetic foot care and the prevalence of diabetic foot ulcers among diabetic patients of selected hospitals in the Volta Region, Ghana

Enhancing diabetic foot ulcer prediction with machine learning: A focus on Localized examinations

Background

diabetices foot ulcer (DFU) are serious complications. It is crucial to detect and diagnose DFU early in order to provide timely treatment, improve patient quality of life, and avoid the social and economic consequences. Machine learning techniques can help identify risk factors associated with DFU development.

Objective

The aim of this study was to establish correlations between clinical and biochemical risk factors of DFU through local foot examinations based on the construction of predictive models using automated machine learning techniques.

Methods

The input dataset consisted of 566 diabetes cases and 50 DFU risk factors, including 9 local foot examinations. 340 patients with Class 0 labeling (low-risk DFU), 226 patients with Class 1 labeling (high-risk DFU). To divide the training group (consisting of 453 cases) and the validation group (consisting of 113 cases), as well as preprocess the data and develop a prediction model, a Monte Carlo cross-validation approach was employed. Furthermore, potential high-risk factors were analyzed using various algorithms, including Bayesian BYS, Multi-Gaussian Weighted Classifier (MGWC), Support Vector Machine (SVM), and Random Forest Classifier (RF). A three-layer machine learning training was constructed, and model performance was estimated using a Confusion Matrix. The top 30 ranking feature variables were ultimately determined. To reinforce the robustness and generalizability of the predictive model, an independent dataset comprising 248 cases was employed for external validation. This validation process evaluated the model's applicability and reliability across diverse populations and clinical settings. Importantly, the external dataset required no additional tuning or adjustment of parameters, enabling an unbiased assessment of the model's generalizability and its capacity to predict the risk of DFU.

Results

The ensemble learning method outperformed individual classifiers in various performance evaluation metrics. Based on the ROC analysis, the AUC of the AutoML model for assessing diabetic foot risk was 88.48 % (74.44-97.83 %). Other results were found to be as follows: 87.23 % (63.33 %-100.00 %) for sensitivity, 87.43 % (70.00 %-100.00 %) for specificity, 87.33 % (76.66 %-95.00 %) for accuracy, 87.69 % (75.00 %-100.00 %) for positive predictive value, and 87.70 % (71.79 %-100.00 %) for negative predictive value. In addition to traditional DFU risk factors such as cardiovascular disorders, peripheral artery disease, and neurological damage, we identified new risk factors such as lower limb varicose veins, history of cerebral infarction, blood urea nitrogen, GFR (Glomerular Filtration Rate), and type of diabetes that may be related to the development of DFU. In the external validation set of 158 samples, originating from an initial 248 with exclusions due to missing labels or features, the model still exhibited strong predictive accuracy. The AUC score of 0.762 indicated a strong discriminatory capability of the model. Furthermore, the Sensitivity and Specificity values provided insights into the model's ability to correctly identify both DFU cases and non-cases, respectively.

Conclusion

The predictive model, developed through AutoML and grounded in local foot examinations, has proven to be a robust and practical instrument for the screening, prediction, and diagnosis of DFU risk. This model not only aids medical practitioners in the identification of potential DFU cases but also plays a pivotal role in mitigating the progression towards adverse outcomes. And the recent successful external validation of our DFU risk prediction model marks a crucial advancement, indicating its readiness for clinical application. This validation reinforces the model's efficacy as an accessible and reliable tool for early DFU risk assessment, thereby facilitating prompt intervention strategies and enhancing overall patient outcomes.

Potassium permanganate in treatment of diabetic foot ulcer: A randomized clinical trial

Background and Aims

Diabetic foot ulcers (DFU) are a severe complication in diabetes patients, often resulting in significant morbidity and mortality due to non-healing. This study investigated the effectiveness of 5% topical potassium permanganate on these ulcers.

Methods

A clinical trial was conducted on 23 patients with Wagner grade I and II DFU. Patients in the control group received standard treatment, while those in the intervention group also received 5% potassium permanganate topically. Data were recorded at 0, 7, 14, and 21 days for analysis.

Results

Among 23 patients studied, 7 (30.4%) were male and 16 (43.7%) female, with an average age of 59 ± 4 years. Both groups showed a statistically significant decrease in wound size and infection over time (p < 0.001). The intervention group, however, had a more substantial reduction in wound size and infection rate (p < 0.05).

Conclusion

Potassium permanganate, when applied topically, is both well-tolerated and effective in enhancing wound healing and reducing infection in DFU, suggesting its potential as a complementary treatment.

Assessing health-related quality of life and clinical outcomes of patients with diabetes accessing healthcare in two public hospitals in south-eastern Ghana: a cross-sectional descriptive study

BACKGROUND

Diabetes is a significant contributor to kidney failure, heart attack, strokes, lower limb amputation, blindness, and other complications that negatively impact health-related quality of life (HRQOL). This study assessed the HRQOL and clinical outcomes of patients with diabetes accessing healthcare in south-eastern Ghana.

METHODS

This was a hospital-based cross-sectional descriptive study conducted in the Ho Municipal and Ho Teaching Hospitals in Ghana among patients with type 2 diabetes who were seeking healthcare at both hospitals for at least 12 months. Systematic random sampling technique was used to select 310 respondents out of the total sample size of 326 patients with type 2 diabetes and data were collected using diabetes-39 questionnaire. The data were analysed using STATA 16.0. Socio-demographic and clinical variables were expressed as frequencies and percentages. Differences between proportions were tested using Chi-square to identify predictors of poor HRQOL and Pearson correlation for association. The p < 0.05 was considered significant.

RESULTS

Out of 310 respondents, 171 (55.0%) had poor HRQOL. The predictors of poor HRQOL were age (p < 0.008), education (p < 0.028), employment (p < 0.001), residence (p < 0.01), duration of diabetes (p < 0.002), diabetes education (p < 0.001), BMI (p < 0.005), and glycaemic control (p < 0.001). Energy and mobility (63.2%), anxiety and worry (53.9%), and diabetes control (49.6%) dimensions were the most prevalent of poor HRQOL. Diabetes education, complications, being diabetic for 16 years and above, earning income, resident in rural area, being married, being pensioner and national Service Personnel, and diabetes comorbidities were significantly associated with HRQOL.

CONCLUSIONS

More than half of the respondents had poor HRQOL. Clinical and public health efforts should focus on effective control and screening measures for the individual patients and general population.

The epidemiological and economic burden of diabetes in Ghana: A scoping review to inform health technology assessment

Diabetes remains one of the four major causes of morbidity and mortality globally among non-communicable diseases (NCDs. It is predicted to increase in sub-Saharan Africa by over 50% by 2045. The aim of this study is to identify, map and estimate the burden of diabetes in Ghana, which is essential for optimising NCD country policy and understanding existing knowledge gaps to guide future research in this area. We followed the Arksey and O'Malley framework for scoping reviews. We searched electronic databases including Medline, Embase, Web of Science, Scopus, Cochrane and African Index Medicus following a systematic search strategy. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews was followed when reporting the results. A total of 36 studies were found to fulfil the inclusion criteria. The reported prevalence of diabetes at national level in Ghana ranged between 2.80%- 3.95%. At the regional level, the Western region reported the highest prevalence of diabetes: 39.80%, followed by Ashanti region (25.20%) and Central region at 24.60%. The prevalence of diabetes was generally higher in women in comparison to men. Urban areas were found to have a higher prevalence of diabetes than rural areas. The mean annual financial cost of managing one diabetic case at the outpatient clinic was estimated at GHS 540.35 (2021 US $194.09). There was a paucity of evidence on the overall economic burden and the regional prevalence burden. Ghana is faced with a considerable burden of diabetes which varies by region and setting (urban/rural). There is an urgent need for effective and efficient interventions to prevent the anticipated elevation in burden of disease through the utilisation of existing evidence and proven priority-setting tools like Health Technology Assessment (HTA).

Reverse pharmacology approach to validate the diabetic wound-healing activity of Jatyadi thailam formulations in vitro on diabetic mimic environment

Objective: Jatyadi thailam, an Ayurvedic preparation, is renowned for its efficacy in diabetic wound healing and inflammation. This study aimed to validate and compare the diabetic wound-healing potential of two Jatyadi thailam formulations - Ayurvedic formulary of India Jatyadi thailam (JT-AFI) and Yogagrantha formulation of Jatyadi thailam (JT-YG), in a diabetic environment using L929 fibroblast cells in vitro. Methodology: The effects on cell survival, proliferation, migration, angiogenesis, cell cycle progression, apoptosis, ROS generation, and mitochondrial function were evaluated.Results: The formulations promoted cell proliferation, migration, angiogenesis, while also regulating cell cycle and apoptosis. They effectively suppressed ROS generation and modulated mitochondrial function. JT-AFI exhibited superior efficacy in accelerating diabetic wound healing compared to JT-YG.Conclusion: These findings provide substantial support for the mechanistic role of Jatyadi thailam in diabetic wound healing.

Association between triglyceride glucose index and severity of diabetic foot ulcers in type 2 diabetes mellitus

BACKGROUND

Triglyceride glucose (TyG) index is a good surrogate biomarker to evaluate insulin resistance (IR). The study aimed to investigate whether the TyG index is related to the severity of diabetic foot ulcers (DFUs) in patients with type 2 diabetes mellitus (T2DM).

METHODS

A total of 1059 T2DM patients were enrolled in this observational, retrospective, single-center study. TyG index was calculated as ln[fasting triglycerides (mg/dl) × fasting glucose (mg/ dl)/2]. The severity of DFUs was classified into mild-to-moderate DFUs (Wagner grade score < 3) and severe DFUs (Wagner grade score ≥ 3) based on Wagner classification. Patients were stratified according to the tertiles of TyG index. Logistic regression models were implemented to explore the association between TyG index and the severity of DFUs. Subgroup analyses were used to verify the reliability of results.

RESULTS

Compared with the reference lowest TyG tertile (T1), the highest tertile (T3) was associated with 0.377-fold increased risk of prevalence of severe DFUs (odds ratio [OR] 1.377, 95% confidence interval [CI] 1.017-1.865) (P = 0.039). After adjusting for potential confounders, the multivariable-adjusted OR and 95% CI were 1.506 (1.079-2.103) (P = 0.016) in patients with highest tertile. Moreover, subgroup analyses indicated that the association was stronger among men, patients with age ≥ 65 years, duration of diabetes more than 10 years, or without PAD.

CONCLUSIONS

Elevated TyG index is independently associated with severity of DFUs even after adjusting conventional confounders.

A multilevel and multicenter assessment of health care system capacity to manage cardiovascular diseases in Africa: a baseline study of the Ghana Heart Initiative

INTRODUCTION

Cardiovascular diseases (CVD) remain the leading cause of death worldwide, with over 70% of these deaths occurring in low- and middle-income regions such as Africa. However, most countries in Africa do not have the capacity to manage CVD. The Ghana Heart Initiative has been an ongoing national program since 2018, aimed at improving CVD care and thus reducing the death rates of these diseases in Ghana. This study therefore aimed at assessing the impact of this initiative by identifying, at baseline, the gaps in the management of CVDs within the health system to develop robust measures to bolster CVD management and care in Ghana.

METHODS

This study employed a cross-sectional study design and was conducted from November 2019 to March 2020 in 44 health facilities in the Greater Accra region. The assessment covered CVD management, equipment availability, knowledge of health workers in CVD and others including the CVD management support system, availability of CVD management guidelines and CVD/NCD indicators in the District Health Information Management System (DHIMS2).

RESULTS

The baseline data showed a total of 85,612 outpatient attendants over the period in the study facilities, 70% were women and 364(0.4%) were newly diagnosed with hypertension. A total of 83% of the newly diagnosed hypertensives were put on treatment, 56.3% (171) continued treatment during the study period and less than 10% (5%) had their blood pressure controlled at the end of the study (in March 2020). Other gaps identified included suboptimal health worker knowledge in CVD management (mean score of 69.0 ± 13.0, p < 0.05), lack of equipment for prompt CVD emergency diagnosis, poor management and monitoring of CVD care across all levels of health care, lack of standardized protocol on CVD management, and limited number of indicators on CVD in the National Database (i.e., DHIMS2) for CVD monitoring.

CONCLUSION

This study shows that there are gaps in CVD care and therefore, there is a need to address such gaps to improve the capacity of the health system to effectively manage CVDs in Ghana.

Effect of COVID-19 on dental care for children during the post-pandemic era in Ghana: A concern for policymaking

The impacts of COVID-19 have been felt globally, especially in the delivery of healthcare services such as dental care, although the incidence in Africa is comparatively low. This review article aims to explore the COVID-19 pandemic lockdown and its impact on dental care for children in Ghana. Some dental facilities in Ghana have been experiencing multiple challenges in service delivery, and the ongoing COVID-19 pandemic has aggravated the situation. The COVID-19 pandemic has interrupted all dental care in many parts of Ghana due to its impact on food insecurity, economic breakdown, depression, shortage of essential instrument supplies, inadequate health workers, and poor infection control practices, which present the main risks to dental care. Furthermore, the shutting of dental departments due to the COVID-19 lockdown has restricted the accessibility and utilization of dental services, especially for children. Hence, to avoid further and future pandemics and their impacts on dental care, there is a need to address the implications identified and prepare for the delivery of suitable dental healthcare in Ghana.

Incidence, prevalence, and potential risk factors for diabetic foot ulceration: A retrospective review at a multidisciplinary centre in Barbados

OBJECTIVE

Diabetes and lower extremity amputation rates in Barbados are among some of the highest globally, with peripheral neuropathy and peripheral vascular disease found to be independent risk factors for this population. Despite this, there is currently a lack of research evidence on rates of diabetic foot ulceration, which has amputation as its sequela. We aimed to evaluate the incidence and prevalence rates of active ulceration in a population of people with diabetes in Barbados. Secondly, we explored the risk factors for new/recurrent ulceration.

RESEARCH DESIGN AND METHODS

Data were extracted from the electronic medical records for the period January 1, 2019 to December 31, 2020 for a retrospective cross-sectional study for patients of a publicly-funded diabetes management programme. Eligible records included people aged 18 years and above with a diagnosis of type 1 or 2 diabetes. Potential risk factors were explored using univariable logistic regression models.

RESULTS

A total of 225 patients were included in the study (96% type 2 diabetes, 70.7% female, 98.7% Black Caribbean). The 1-year period prevalence of diabetic foot ulceration was 14.7% (confidence interval [CI]: 10.5, 20.1). Incidence of ulceration in the same period was 4.4% (CI: 4.4, 4.5). Risk factors associated with diabetic foot ulceration included: retinopathy (OR 3.85, CI: 1.24, 11.93), chronic kidney disease (OR 9.86, CI: 1.31, 74.22), aspirin use (OR 3.326, CI: 1.02, 10.85), and clopidogrel use (OR 3.13, CI: 1.47, 6.68).

CONCLUSION

This study provided some insight into potential risk factors for foot ulceration in this population, which previous studies have shown to have higher rates of lower extremity amputations. Further research in this understudied group through a larger prospective cohort would allow more meaningful associations with risk factors and would be useful for the creation of risk prediction models.

Prevalence and determinants of lower extremity amputations among type I and type II diabetic patients: A multicenter-based study

The incidence of diabetes-related lower-extremity complications is increasing globally, yet the condition in developing countries, particularly those in sub-Saharan Africa, is unclear. This study determined the prevalence and determinants of lower extremity amputations among type I and type II diabetic patients at health facilities in the Volta Region, Ghana. This was a multicenter-based study involving 473 diabetic patients. Sociodemographic, lifestyle, medical, biochemical, and anthropometric data were obtained systematically with a pretested structured questionnaire. The prevalence rate of lower extremity amputations (LEAs) was 1.9%. LEAs were linked to the male gender (unadjusted odds ratio [UOR] = 5.86; 95% confidence interval [CI] = 1.44-23.82; P = 0.013), smokers (UOR = 10.12; 95% CI = 2.63-38.91; P = .001), type I diabetic patients (UOR = 4.74; 95% CI = 1.24-18.10; P = .023), family history of diabetes mellitus (UOR = 9.18; 95% CI = 2.25-37.46; P = .002), diabetic foot ulcers (adjusted odds ratio [AOR] = 8.62; 95% CI = 1.58-47.62; P = .013) and obesity (AOR = 6.20; 95% CI = 1.00-38.04; P = .049). This study showed a relatively low prevalence rate compared to previous studies within Ghana. However, it is a major concern in public health that needs to be addressed since diabetes-related LEAs are connected to global major morbidity and mortality.

Resveratrol accelerates wound healing by inducing M2 macrophage polarisation in diabetic mice

CONTEXT

The reduction in M2 macrophage polarisation plays a major role during diabetic wound healing. Resveratrol (RSV) can promote the polarisation of M2 macrophages and accelerate diabetic wound healing. However, the specific mechanism by which RSV regulates M2 macrophage polarisation to promote diabetic wound healing is unclear.

OBJECTIVE

This study evaluated the effectiveness of RSV on diabetic wound healing and analysed the underlying mechanisms.

MATERIALS AND METHODS

STZ-induced C57/B6 mice were used as a diabetic mice model for a period of 15 days. RSV (10 μmol/L) was injected around the wound to evaluate the effect of RSV on the healing process of diabetic wounds. The human monocyte line THP-1 was used to evaluate the effects of RSV (10 μmol/L) on polarisation of M2 macrophages and the secretion of pro-inflammatory factors.

RESULTS

In vivo, RSV significantly increased diabetic wound healing (p < 0.05) and make the regenerated skin structure more complete. And it promoted the expression of α-SMA and Collagen I (p < 0.05). Moreover, RSV reduced the secretion of inflammatory factors (TNF-α, iNOS and IL-1β) (p < 0.05) and promoted M2 macrophage polarisation by increasing Arg-1 and CD206 expression (p < 0.01). In vitro, RSV promoted the polarisation of M2 macrophages (p < 0.001) and reduced the secretion of pro-inflammatory factors (TNF-α, IL-6 and IL-1β) (p < 0.05). The therapeutic effects of RSV were all significantly reversed with LY294002 (p < 0.01).

DISCUSSION AND CONCLUSIONS

RSV has the positive effects on promoting the acceleration and quality of skin wound healing, which provides a scientific basis for clinical treatment in diabetic wound.

Comparison of adiposity anthropometric indices and their associations with visceral fat levels determined by bioelectrical impedance analysis among diabetic patients

Visceral fat (VF) and its effect on metabolic disorders have been extensively studied; nevertheless, there is a need for a simple and reliable index to equally assess VF in low-resource settings. This multihospital-based study was designed to compare the five adiposity anthropometric indices and their associations with VF levels determined by bioelectrical impedance analysis as the reference standard among diabetic patients. A pretested questionnaire was used to collect anthropometric, biochemical and hemodynamic data from 473 diabetic patients. Regression analysis was performed to determine the associations between the five adiposity anthropometric indices and VF levels. Receiver operating characteristic (ROC) curves were used to confirm the predictive capacities of the five adiposity anthropometric indices with VF levels. The waist-to-height ratio WHtR showed the greatest ROC value [area under the curve (AUC) = 0.745, p ˂0.001] in identifying diabetic patients with high VF levels compared to body mass index BMI [AUC = 0.584, p = 0.047], waist circumference WC [AUC = 0.723, p ˂0.001], hip circumference HC [AUC = 0.647, p ˂0.001] and waist-to-hip ratio WHR [AUC = 0.711, p ˂0.001]. Likewise, the regression analysis of WHtR and VF levels revealed the strongest association [unadjusted odds ratio (UOR) = 21.49, p < 0.001] compared to BMI [UOR = 6.77, p = 0.008], WC [UOR = 6.37, p < 0.001], HC [UOR = 5.93, p = 0.002] and WHR [UOR = 13.17, p < 0.001]. The optimal cut-off values to identify diabetic patients with high VF levels were > 0.5 for WHtR, > 25.7 kg/m2 for BMI, > 80.5 cm for WC, > 95.5 cm for HC and > 0.82 for WHR. WHtR was shown to have overpowered BMI, HC, WC and WHR in identifying diabetic patients with high VF levels. Therefore, the Ghana Health Service could recommend WHtR as a better diagnostic index for assessing VF levels due to its high predictive capacity.

Hyperbaric oxygen therapy as an adjunct to the standard wound care for the treatment of diabetic foot ulcers in Indian patients: a cost utility analysis

BACKGROUND

Diabetic foot ulcer (DFU) is a common complication of diabetes. Hyperbaric oxygen therapy (HBOT) is an adjunct treatment that expedites the healing of DFU.

AIM

To evaluate the cost-utility of using standard wound care (SWC) plus HBOT as compared to SWC alone for the treatment of DFU from a societal perspective in the Indian context.

METHOD

A Markov decision analysis model comparing SWC with and without HBOT was developed. Data for the model were derived from relevant literature and secondary data from India. The main outcome measures were minor and major lower extremity amputations (LEA) averted, incremental quality-adjusted-life-years (QALY) gained, incremental costs, incremental cost-effectiveness ratio (ICER) per amputation averted and ICER per QALY gained. Sensitivity and threshold analyses were also done.

RESULT

HBOT, when added to SWC, lowered the proportion of minor LEA and major LEA among patients with DFU by 6.1% and 4.2%, respectively. The discounted ICER was INR 193,939 [95% CI: 186,745-203,753] or US$ 2,621 [95% CI: 2,524-2,753] per QALY gained.

CONCLUSION

SWC plus HBOT is not cost-effective in India. Additional information is required on patient experiences with adjunctive HBOT, if it were to be adopted as the standard of care in India.

The Association Between Pregnancy-Related Factors and Health Status Before and After Childbirth With Satisfaction With Skilled Delivery in Multiple Dimensions Among Postpartum Mothers in the Akatsi South District, Ghana

Background

Skilled delivery has been a pronounced concern and has been investigated over the years in developing countries. An inclusive understanding of the satisfaction of postpartum mothers is vital in improving the quality of skilled delivery, which is beneath the standard in some parts of developing countries. This study assessed the association between pregnancy-related factors and health status before and after childbirth with satisfaction with skilled delivery in multiple dimensions among postpartum mothers in the Akatsi South District, Ghana.

Methods

A community-based, cross-sectional study was conducted among 538 postpartum mothers who participated through the systematic sampling method. Data collection was performed through a pretested and structured questionnaire developed from the WHO responsiveness concept and other prior studies. Questions on satisfaction were categorized into six dimensions. The associations were determined using bivariable and multivariable logistic regression analyses.

Results

The overall satisfaction of postpartum mothers with skilled delivery was 80.7%. The highest (89.6%) and the lowest (12.8%) satisfaction with skilled delivery were found in technical quality and financial dimensions. Analysis revealed that autonomously age and delivery procedure were significantly associated with the dimensions of communication and responsiveness. Postpartum mothers who delivered at private healthcare facilities [crude odds ratio (COR) = 1.70; (95% CI 1.00–2.90); p = 0.049] had preterm pregnancy before delivery [COR = 2.08; (95% CI 1.02–4.21); p = 0.043], had cesarean section [COR = 2.73; (95% CI 1.05–7.12); p = 0.040], and presented with complications after childbirth [COR = 2.63; (95% CI 1.09–6.35); p = 0.032] were more likely to be satisfied in the dimension of communication only compared to their counterparts. Regarding responsiveness, multiparous mothers [COR = 1.63; (95% CI 1.06–2.51); p = 0.007] were more likely to be satisfied than primiparous mothers. Overall satisfaction was significantly and positively correlated with the various dimensions of skilled delivery.

Conclusions

The majority were satisfied with five dimensions of satisfaction with skilled delivery except for the financial dimension. The District Health Directorate of Akatsi South should take into consideration these findings in their policy development for forward-looking skilled delivery.