Asthma is a chronic (long-term) lung condition that affects your airways or bronchial tubes. It can cause your airways to narrow and their lining to swell and to produce extra mucus, which makes it more difficult to breathe. The narrowing of the air...ways causes you to feel short of breath, wheeze, or cough. Asthma is there even when you don’t have any symptoms.
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he aetiology of asthma and allergic disease remains poorly understood, despite considerable research. The International Study of Asthma and Allergies in Childhood (ISAAC), was founded to maximize the value of epidemiological research into asthma and... allergic disease, by establishing a standardized methodology and facilitating international collaboration. Its specific aims are: 1) to describe the prevalence and severity of asthma, rhinitis and eczema in children living in different centres, and to make comparisons within and between countries; 2) to obtain baseline measures for assessment of future trends in the prevalence and severity of these diseases; and 3) to provide a framework for further aetiological research into genetic, lifestyle, environmental, and medical care factors affecting these diseases. The ISAAC design comprises three phases. Phase 1 uses core questionnaires designed to assess the prevalence and severity of asthma and allergic disease in defined populations. Phase 2 will investigate possible aetiological factors, particularly those suggested by the findings of Phase 1. Phase 3 will be a repetition of Phase 1 to assess trends in prevalence.
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Asthma is the most common noncommunicable disease in children, and among the most common in adults. According to the most recent estimates from the Global Asthma Network Phase I study, around one in 10 children and adults have symptoms of asthma and... one in 20 school-aged children have severe asthma symptoms, with marked variations in prevalence and in prevalence trends between countries and regions of the world. The Global Burden of Disease Study estimated that asthma caused the loss of 21.6 million healthy years of life (disability-adjusted life years) and 461 069 deaths in 2019. Approximately 90% of the asthma burden of disease is borne by people living low and middle income countries (LMICs). Some countries report very high (up to 90%) rates of uncontrolled asthma. While the prevalence of asthma is highest in countries with a high Socio-Demographic Index (SDI), death rates from asthma are highest in countries with low and lower middle incomes.
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Asthma is a chronic lung condition that affects your airways or bronchial tubes. It causes your airways to narrow, swell and produce extra mucus, which in turn makes it more difficult to breathe. The narrowing of the airways causes you to feel short... of breath, wheezy or trigger fits of coughing.
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Asthma is chronic inflammation of the airways in the lungs.
In asthma, the airways in the lung narrow due to swelling of
the mucosa, increased mucus production, and spasm of the airways.
asthma is a chronic inflammatory and a heterogeneous condition of respiratory system whose pathogenesis is linked with variable structural changes. The clinical manifestation of asthma includes attacks of breathlessness, cough, chest tightness and w...heezing. Provision of basic equipment and test for asthma diagnosis and access to essential medicines by asthmatic patients reduces morbidity and mortality rates. Significant progress has been made in the diagnosis and management of asthma in other countries but not in the health care delivery system in Zimbabwe. Therefore, the aim of this study was to develop algorithm for asthma diagnosis and management for Zimbabwe.
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The "Cystic Fibrosis Fact Sheet" by the National Heart, Lung, and Blood Institute provides an overview of cystic fibrosis (CF), a chronic and often fatal genetic disorder affecting the respiratory and digestive systems. The document outlines the cau...ses, genetic inheritance patterns, and symptoms of CF, which include thick mucus buildup, respiratory issues, and digestive problems. It also discusses diagnostic methods, such as the sweat test and genetic testing, and highlights current treatment approaches focused on symptom management, including chest therapy, medications, and potential gene therapy. The fact sheet emphasizes patient and family education to improve quality of life and support coping strategies.
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Asthma is the most common non-communicable disease in children and remains one of the most common throughout the life course. The great majority of the burden of this disease is seen in low-income a...nd middle-income countries (LMICs), which have disproportionately high asthma-related mortality relative to asthma prevalence. This is particularly true for many countries in sub-Saharan Africa. Although inhaled asthma treatments (particularly those containing inhaled corticosteroids) markedly reduce asthma morbidity and mortality, a substantial proportion of the children, adolescents, and adults with asthma in LMICs do not get to benefit from these, due to poor availability and affordability. In this review, we consider the reality faced by clinicians managing asthma in the primary and secondary care in sub-Saharan Africa and suggest how we might go about making diagnosis and treatment decisions in a range of resource-constrained scenarios. We also provide recommendations for research and policy, to help bridge the gap between current practice in sub-Saharan Africa and Global Initiative for Asthma (GINA) recommended diagnostic processes and treatment for children, adolescents, and adults with asthma.
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The document titled "Early Warning Signs of COPD" from the American Lung Association outlines what COPD is, its risk factors, and the importance of recognizing early symptoms such as persistent cough, breathlessness, and frequent chest infections. It emphasizes the need for early consultation with a... healthcare provider and diagnostic testing like spirometry to confirm COPD. Early diagnosis and treatment can help slow disease progression and improve quality of life.
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Asthma is a heterogeneous condition characterised by chronic inflammation and variable expiratory airflow limitation, with airway reversibility. Management of chronic inflammation with anti-asthma m...edication improves asthma control and quality of life. The aim of this journal is to provide an evidence-based approach for chronic asthma management in young children and adolescents and provide guidance on the use of new asthma drugs in children.
For that, the South African Childhood Asthma Working Group (SACAWG) convened in January 2017. The asthma treatment task group reviewed the available scientific literature and international asthma treatment guidelines. The evidence was then graded according to the Grades of Recommendation Assessment, Development and Evaluation (GRADE) system and recommendations were made based on scientific evidence and local context. Asthma management recommendations were made for children ˂6 years of age and older children and adolescents, as well as for stepping up and stepping down of therapy. This review does not include biologics or novel asthma drugs, which are covered in another CME article in this edition of SAMJ.
The final conclusions are that it is important to ensure good response, treatment and adherence, type of medication, device and checking of technique are all critical. Stepping up of therapy should be done only after ensuring good adherence and technique. Once therapeutic response is achieved, medication administration has to be stepped down to improve ease of use and avoid unnecessary side-effects.
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a "risk factor" is something that increases your chances of getting a disease or condition. In the case of asthma there are two diffrent type of risk factors. There are risk factors for developing asthma , and there are separate risk factors for tho...se who already have asthma getting a severe asthma attack. We like to refer to the second as "triggers for asthma attacks" instead of "risk factors" to avoid confusion.
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Asthma is a heterogeneous condition characterised by chronic inflammation and variable expiratory airflow limitation, as well as airway reversibility. The diagnosis of asthma in young children is limited by the inability to perform objective lung fu...nction testing in this group of patients and the wide variety of conditions that can phenotypically present with asthma-like symptoms.
This article provides an evidence-based approach for clinicians to accurately diagnose asthma in young children and to assess the level of control to guide therapeutic decisions.
The South African Childhood Asthma Working Group (SACAWG) convened in January 2017 with task groups, each headed by a section leader, constituting the editorial committee on assessment of asthma epidemiology, diagnosis, control, treatments, novel treatments and self-management plans. The asthma diagnosis and control task groups reviewed the available scientific literature and assigned evidence according to the Grades of Recommendation Assessment, Development and Evaluation (GRADE) system, providing recommendations based on current evidence.
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Asthma is the most common chronic illness of childhood. The prevalence is rising and the mortality and morbidity from asthma are unacceptably high in South Africa. This article emphasizes the importance to make a correct diagnosis based, most import...antly, on the clinical history and supported by investigations. Further, the appropriate drug and device must be chosen to achieve good asthma control. It explains that patients must be followed up regularly and their asthma control must be assessed so that the treatment can then be adjusted according to the level of control. Additionally, Asthma education and adherence are important components of management of the condition.
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Asthma is the most common chronic condition in children worldwide. It affects daytime activities, sleep and school attendance and causes anxiety to parents, families and other carers. The quality of asthma diagnosis and management globally still nee...ds substantial improvement. From infancy to the teenage years, there are age-specific challenges, including both underdiagnosis and overdiagnosis with stigma-related barriers to treatment in some cultures and in adolescents. The Paediatric Asthma Project Plan has been initiated to strengthen diagnosis and management of asthma. This encompasses a vision for the next 10–15 years, building on the knowledge and experience from previous educational projects. It will take into account the educational needs of patients, carers and healthcare professionals as well as the accessibility and affordability of medication, particularly in low and middle-income countries where the prevalence of asthma is rising more rapidly. This overview presents a first step for those involved in the diagnosis and management of childhood asthma to strengthen care for children globally.
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The document addresses the pressing issues of global malnutrition and the urgent need to build workforce capacity in public health nutrition, particularly in low- and middle-income countries. It highlights the dual burden of malnutrition, characterized by the coexistence of undernutrition and overnu...trition. While maternal and child undernutrition remain critical concerns, there is a growing prevalence of chronic diseases linked to overnutrition, even in resource-limited settings.
A significant gap exists in the availability of trained nutrition professionals. Many countries lack sufficient numbers of nutritionists, particularly at the undergraduate level, and existing training programs often focus on curative rather than preventive approaches. This leaves health workers inadequately prepared to address complex public health nutrition challenges.
To address these issues, the document recommends increasing the number of trained nutritionists, incorporating updated nutrition training into medical and nursing curricula, and developing competency frameworks and hybrid training programs. Accreditation systems for nutrition professionals are also proposed to ensure standardized and effective training.
Sustainability remains a challenge, with the need for long-term financing and better integration of nutrition programs into health systems. The document calls for systemic approaches to strengthen workforce capacity, enabling countries to effectively tackle the underlying causes of malnutrition.
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The World Health Organization's Global Health Observatory (GHO) provides comprehensive data on noncommunicable diseases (NCDs), including cardiovascular diseases, cancers, ...highlight medbox">chronic respiratory diseases, and diabetes. The portal offers country-specific statistics on NCD mortality rates, risk factors, and national responses, facilitating analysis and comparison across regions. It also includes resources such as publications and tools to support global efforts in NCD prevention and control.
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The World Health Organization's fact sheet on noncommunicable diseases (NCDs) highlights that NCDs, such as cardiovascular diseases, cancers, chronic...n> respiratory diseases, and diabetes, are responsible for 74% of all global deaths, totaling 41 million annually. Notably, 86% of premature NCD deaths (before age 70) occur in low- and middle-income countries. Key risk factors include tobacco use, physical inactivity, harmful alcohol consumption, unhealthy diets, and air pollution. The WHO emphasizes the importance of preventive measures, early detection, and comprehensive healthcare strategies to address the growing NCD burden.
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The Noncommunicable Diseases (NCD) Data Portal provides comprehensive information on NCDs, including cardiovascular diseases, cancer, diabetes, and chroni...c respiratory diseases. It offers country-specific data on mortality rates, risk factors, and national responses, enabling analysis and comparison across regions. The portal also includes resources such as publications and tools to support global efforts in NCD prevention and control.
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The Noncommunicable Diseases (NCD) Data Portal provides comprehensive information on NCDs, including cardiovascular diseases, cancer, diabetes, and chroni...c respiratory diseases. It offers country-specific data on mortality rates, risk factors, and national responses, enabling analysis and comparison across regions. The portal also includes resources such as publications and tools to support global efforts in NCD prevention and control.
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The 2023 update of the Global Strategy for Asthma Management and Prevention incorporates new scientific information about asthma based on a review of recent scientific literature by an international panel of experts on the GINA Science Committee. This comprehensive and practical resource about one o...f the most common chronic lung diseases worldwide contains extensive citations from the scientific literature and forms the basis for other GINA documents and programs.
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