South Africa is a mineral-rich country. Although the mining of these minerals generates wealth for the country, it also causes diseases in the mine workers who are exposed to harmful dust. Pulmonary silicosis, the disease most commonly caused by exposure to crystalline silica dust, was described in ...South African gold miners in the early 1900s not many years after gold-mining commenced. Most studies since then have been cross-sectional, with only one large cohort study being conducted on white miners; long-term trends have not been reported. Currently, South Africa has one of the highest rates of silicosis in the world.
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The article analyzes the prevalence and risk factors of chronic respiratory diseases, focusing on sub-Saharan Africa. It highlights that environmental exposures, such as biomass fuel usage and air pollution, significantly contribute to respiratory health issues in the region. The research underlines... the limited healthcare infrastructure, insufficient diagnostic tools, and the need for comprehensive data collection to better understand the burden of respiratory diseases. The authors advocate for targeted public health interventions, improved access to healthcare, and policies aimed at reducing exposure to risk factors to mitigate the prevalence of respiratory conditions.
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The Mediclinic Infohub article on silicosis provides an overview of this occupational lung disease caused by inhaling silica dust. It explains that inhaled silica particles lead to lung scarring and nodule formation, progressively impairing breathing. The article outlines symptoms such as shortness ...of breath, severe cough, fatigue, loss of appetite, chest pains, and fever. Diagnosis involves a medical examination, detailed occupational history, lung function tests, and imaging like chest X-rays or CT scans to detect lung scarring and nodules. While silicosis is irreversible with no specific cure, management focuses on preventing further silica exposure and treating complications. Preventive measures include maintaining high occupational health standards to control silica dust exposure.
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The Cedars-Sinai webpage on occupational lung diseases provides an overview of various lung conditions caused by exposure to harmful substances in the workplace. It outlines common types of occupational lung diseases, including asbestosis, silicosis, coal workers’ pneumoconiosis, and chemical-rela...ted lung disorders. The page details symptoms such as coughing, difficulty breathing, and chest pain, emphasizing the importance of early detection and treatment. Preventative measures, including workplace safety practices and protective equipment, are also highlighted to reduce risk. The information underscores the role of medical evaluation and ongoing management for individuals exposed to occupational hazards.
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The Johns Hopkins Medicine webpage on occupational lung diseases provides an overview of lung conditions caused by exposure to harmful substances in the workplace. It explains various types of occupational lung diseases, including asbestosis, silicosis, coal workers' pneumoconiosis, and hypersensiti...vity pneumonitis. The page outlines common symptoms such as chronic cough, shortness of breath, and chest tightness. It emphasizes the importance of early diagnosis and effective treatment to manage symptoms and prevent disease progression. Additionally, the webpage highlights preventive measures, including workplace safety practices and protective equipment, to minimize the risk of exposure.
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This study investigated occupational risk factors and exposure–response relationships for airway disease among health workers (HWs) exposed to cleaning agents in two tertiary hospitals in South Africa and Tanzania.
Previous studies have demonstrated an association between asthma or respiratory... symptoms and exposure to broad categories of cleaning-related exposures in healthcare settings. However, few studies have identified the specific cleaning agents responsible for asthma and other health outcomes. Products used for medical instrument cleaning and disinfection such as glutaraldehyde, orthophthalaldehyde (OPA) and quaternary ammonium compounds (QACs) have been implicated in the causation and exacerbation of work-related asthma (WRA) and upper airway outcomes such as rhinitis.
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The article discusses chronic obstructive pulmonary disease (COPD) as a common but under-recognized occupational disease. While smoking is the main cause, occupational exposure to vapors, gases, dusts, and fumes (VGDF) significantly contributes to the development and progression of COPD. Epidemiolog...ical studies indicate that up to 14% of COPD cases are attributable to occupational factors. The article highlights the need for better physician training in obtaining occupational exposure histories and emphasizes early diagnosis to prevent disease progression. Additionally, it stresses the importance of collaboration among general practitioners, respiratory specialists, and occupational health professionals to reduce the health and socio-economic impact of COPD.
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The article investigates the effectiveness and challenges of remote monitoring systems for chronic respiratory diseases, focusing on COPD and asthma. It reviews various technologies and their potential to improve patient outcomes through better symptom tracking, medication adherence, and early detec...tion of exacerbations. The study highlights that while remote monitoring has significant potential, challenges such as data accuracy, patient compliance, and integration with existing healthcare systems remain. The authors call for further research to standardize and validate remote monitoring tools and emphasize the need for patient-centric approaches to enhance engagement and adherence.
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Background
In the prevention of cardiovascular disease, a WHO target is that at least 50% of eligible people use statins. Robust evidence is needed to monitor progress towards this target in low-income and middle-income countries (LMICs), where most cardiovascular disease deaths occur. The objectiv...es of this study were to benchmark statin use in LMICs and to investigate country-level and individual-level characteristics associated with statin use.
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To help adapt cardiovascular disease risk prediction approaches to low-income and middle-income countries, WHO has convened an effort to develop, evaluate, and illustrate revised risk models. Here, we report the derivation, validation, and illustration of the revised WHO cardiovascular disease risk ...prediction charts that have been adapted to the circumstances of 21 global regions.
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Development of cardiovascular disease (CVD) is influenced by risk factors such as:
tobacco use, an unhealthy diet, physical inactivity, obesity (which can result from
a combination of unhealthy diet, physical inactivity, and other factors), elevated
blood pressure (hypertension), abnormal blood l...ipids (dyslipidaemia) and elevated blood glucose (diabetes mellitus). Continuing exposure to these risk factors leads
to further progression of atherosclerosis, resulting in clinical manifestations of these diseases, including angina pectoris, myocardial infarction, heart failure and stroke. Total CVD risk depends on the individual’s overall risk-factor profile.
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The World Health Organization (WHO) video titled "Preventing Disease Through Healthy Environments" highlights the significant impact of environmental factors on global health. It reports that in 2012, approximately 12.6 million deaths—nearly one in four worldwide—were attributable to unhealthy e...nvironments. The video emphasizes the importance of addressing environmental risks to prevent diseases and improve public health outcomes.
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This short brief describes the main findings and the key lessons learned from the research project "Evaluation of the impact of alcohol control policies on morbidity and mortality in Lithuania and other Baltic states", funded by the United States National Institute on Alcohol Abuse and Alcoholism fo...r the period 2000–2025. The WHO-backed project aims to assess the effects of alcohol control policies implemented in Estonia, Latvia and Lithuania and to investigate the impact they have had on both people's health and the countries' economies, based on concrete actions taken. The key findings of the project demonstrate that alcohol control policies such as taxation and availability measures decrease all-cause mortality and reduce inequalities, and that dismantling alcohol control policies has the opposite effect on population health. They also highlight that consumption of unrecorded alcohol will not necessarily go up if taxation is increased and that specific countermeasures can be taken to prevent an increase in unrecorded consumption.
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Peripheral artery disease (PAD) is a disease of the blood vessels outside the heart and brain. PAD often occurs due to a buildup of fatty deposits in the arteries.
PAHO has developed a series of country profiles on diabetes that illustrate the growing burden of diabetes and diabetic kidney disease in countries in the Region of the Americas. The country profiles reveal that over the past 20 years, diabetes disability (excluding diabetic kidney disease) increase...d in all countries in the Region, in both men and women, while diabetic kidney disease increased in 31 of the countries. 33 countries analyzed.
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Background: Peripheral artery disease is a growing public health problem. We aimed to estimate the global disease burden of peripheral artery disease, its risk factors, and temporospatial trends to inform policy and public measures.
Methods: Data on peripheral artery disease were modelled using the... Global Burden of Disease, Injuries, and Risk Factors Study (GBD) 2019 database. Prevalence, disability-adjusted life years (DALYs), and mortality estimates of peripheral artery disease were extracted from GBD 2019. Total DALYs and age-standardised DALY rate of peripheral artery disease attributed to modifiable risk factors were also assessed.
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Peripheral artery disease is similar to coronary artery disease (CAD).
Peripheral artery disease is a narrowing of the peripheral arteries that carry blood away from the heart to other parts of the body. The most common type is lower-extremity PAD, in which blood flow is reduced to the legs and fee...t. Upper-extremity PAD (arms, hands and fingers) is less common but affects about 10% of the population.
Both PAD and coronary artery disease are caused by atherosclerosis, the buildup of fatty plaque in the arteries that narrows and blocks them throughout the body, including in the heart, brain, arms, legs, pelvis and kidneys.
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The risk factors for CVD include behavioural factors, such as tobacco use, an unhealthy diet, harmful use of alcohol and inadequate physical activity, and physiological (metabolic) factors, including high blood pressure (hypertension), high blood cholesterol and high blood sugar or glucose. Both kin...ds of factor are linked to underlying social determinants and drivers. This module focuses on the behavioural risk factors and provides information on: • tobacco use, unhealthy diet, insufficient physical activity and harmful use of alcohol as important contributors to CVDs • behavioural change, brief interventions for counselling and key points for motivational interviewing • the theory of the 5As for brief interventions, as well as sample brief interventions for each risk factor, using the 5As. Target users of this module This module is intended for trainers of primary health care workers, including physicians, nurses, and other health workers. Primary care workers should be trained on the risk factors and counselling approaches, adapting to local customs, culture and context. NCD programme managers may also use it for planning purposes.
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Did you know that public health interventions that engage community health workers (CHWs) can help people manage risk factors and prevent cardiovascular disease, as well as reduce health disparities? The Community Preventive Services Task Force (Task Force) recommends interventions that engage CHWs ...to prevent cardiovascular disease (CVD).
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The American Heart Association, in conjunction with the National Institutes of Health, annually reports the most up-to-date statistics related to heart disease, stroke, and cardiovascular risk factors, including core health behaviors (smoking, physical activity, diet, and weight) and health factors ...(cholesterol, blood pressure, and glucose control) that contribute to cardiovascular health. The Statistical Update presents the latest data on a range of major clinical heart and circulatory disease conditions (including stroke, congenital heart disease, rhythm disorders, subclinical atherosclerosis, coronary heart disease, heart failure, valvular disease, venous disease, and peripheral artery disease) and the associated outcomes (including quality of care, procedures, and economic costs).
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