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Asthma is one of the most common chronic respiratory conditions in the world and is increasing in prevalence, particularly in Africa and other low-income countries. The disproportionately high numbers of premature deaths and severe or uncontrolled cases in many African countries are indicative of th
...
eir inability to cope with a costly disease like asthma. Progress has, however, been made in understanding the complex and heterogeneous nature of the disease. The objective of this study will be to summarise the epidemiological literature on the nature of asthma in African countries.
more
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 wheezing. Provision of basic equipment and test for
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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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Outcome of illustrated information leaflet on correct usage of asthma-metered dose inhaler
Wrench, W.; van Dyk, L.; Sirinivas, S.; Dowse, R.
African Journal of Primary Health Care & Family Medicine
(2019)
CC2
Research globally has shown that metered dose inhaler (MDI) technique is poor, with patient education and regular demonstration critical in maintaining correct use of inhalers. Patient information containing pictorial aids improves understanding of medicine usage; however, manufacturer leaflets illu
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strating MDI use may not be easily understood by low-literacy asthma patients.
more
In 2014, the International Study of Asthma and Allergies in Childhood (ISAAC) reported that the highest prevalence of symptoms of severe asthma was found in the low- and middle-income countries (LMICs), including Nigeria. While exposure to biomass fuel use may be an important risk factor in the deve
...
lopment of asthma, its association with asthma symptoms severity has not been well-established. The aim of this study is to extend the spectrum of environmental risk factors that may be contributing towards increasing asthma morbidity, especially asthma symptoms severity in rural schoolchildren in Nigeria and to examine possible asthma underdiagnosis among this population.
more
Respiratory Effects of Exposure to Diesel Traffic in Persons with Asthma
McCreanor, J.; Cullinan, P.; Nieuwenhuijsen, M.J.; et al.
The New England Journal of Medecine
(2007)
CC2
Air pollution from road traffic is a serious health hazard, and people with preexisting respiratory disease may be at increased risk. We investigated the effects of short-term exposure to diesel traffic in people with asthma in an urban, roadside environment.
Asthma is a chronic inflammatory condition characterized by airway hyper-responsiveness to a variety of stimuli largely of allergic origin with reversible airflow limitation. The major clinical features of asthma are wheezing, shortness of breath, and cough. It is a major cause of impaired quality o
...
f life with impact on work and recreational as well as physical activities and emotions. The goal of treatment is to achieve overall clinical control, which entails the achievement of symptom-free control and to minimize future risks. The goal is the same for all severity of the disease.
more
Common characteristics of upper and lower airways in rhinitis and asthma: ARIA update, in collaboration with GA2LEN
Cruz, A.A.; Popov, T.; Pawankar, R.; et al.
Allergy: Volume62, Issues84 November 2007 Pages 1-41
(2007)
CC2
This document updates the ARIA sections on the links between rhinitis and asthma. Relevant publications between January 2000 and December 2005 were included. Complementary and alternative medicine is not evaluated in this document since it has been published separately. Likewise, an update on pharma
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cological therapy of AR was published separately. Therefore, in the therapeutical component of the current review we decided to focus on aspects related to concomitant rhinitis and asthma.
The aim of this review was to present new evidence related to major ARIA statements, either to support or to refute them, by bringing the most recent information in the context of the previous knowledge on this subject. Additionally, we looked for information that could potentially lead to novel statements.
more
The aim of the present study was to predict which patients with severe or difficult-to-treat asthma are at highest risk for healthcare utilisation can be predicted so as to optimise clinical management. Data were derived from 2,821 adults with asthma enrolled in The Epidemiology and Natural History
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of Asthma: Outcomes and Treatment Regimens (TENOR) study. Multiple potential predictors were assessed at baseline using a systematic algorithm employing stepwise logistic regression. Outcomes were asthma-related hospitalisations or emergency department (ED) visits within 6 months following baseline.
more
The Asthma Control Questionnaire (ACQ) was developed to measure the primary goals of asthma management as identified by international guidelines. All guidelines indicate that to achieve good control, treatment should minimise day- and night-time symptoms, activity limitation, airway narrowing and re
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scue bronchodilator use and thus reduce the risk of life-threatening exacerbations and long-term morbidity. Three independent studies have provided evidence that the ACQ is valid for measuring asthma control and has strong measurement properties for use both in clinical practice and research. In addition, the smallest change in score that can be considered clinically important has been determined.
more
The development of the Asthma Control Test (ACT), a short, simple, patient-based tool for identifying patients with poorly controlled asthma, was recently described in patients under the routine care of an asthma specialist.
We sought to evaluate the reliability and validity of the ACT in a longi
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tudinal study of asthmatic patients new to the care of an asthma specialist.
more
Considerable energy has been expended over the last two decades in developing methods for identifying the presence of asthma among participants in population studies. The objective of this endeavour has commonly been to enable epidemiological research on risk factors for asthma, with the ultimate ai
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m of preventing the disease. However, there are other reasons for measuring the prevalence of asthma in populations, including the desire to assess the burden of disease attributable to asthma, to track changes over time, and to compare the prevalence among population groups defined by geographical, demographic or social factors. Two major international collaborative studies arising from this work have made major contributions to our knowledge about asthma
more
Asthma guidelines indicate that the goal of treatment should be optimum asthma control. In a busy clinic practice with limited time and resources, there is need for a simple method for assessing asthma control with or without lung function testing.
Asthma is one of the most common chronic respiratory conditions in the world and is increasing in prevalence, particularly in Africa and other low-income countries. The disproportionately high numbers of premature deaths and severe or uncontrolled cases in many African countries are indicative of th
...
eir inability to cope with a costly disease like asthma. Progress has, however, been made in understanding the complex and heterogeneous nature of the disease. The objective of this study will be to summarise the epidemiological literature on the nature of asthma in African countries.
more
Urbanisation has been associated with temporal and geographical differences in asthma prevalence in low-income and middle-income countries (lMics). however, little is known of the mechanisms by which urbanisation and asthma are associated, perhaps explained by the methodological approaches used to a
...
ssess the urbanisation-asthma relationship.
more
Bronchial asthma is the most frequent chronic respiratory disease in both adults and children. The prevalence and burden of asthma vary considerably between different regions of the world. Information on asthma in Africa is fragmentary and relatively old.
Allergic rhinitis (AR) and asthma are inflammatory conditions of the airways that often occur concomitantly. This global survey was undertaken to understand patient perspectives regarding symptoms, treatments, and the impact on their well-being of comorbid AR and asthma.
The prevalence of asthma and allergic rhinoconjunctivitis is high in western countries, and has been rising throughout the late 20th century. However, relatively little is known about the prevalence of allergic disorders in children in North Africa and the Middle East, and even less is known about t
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he relative importance of socioeconomic factors in its aetiology in these countries, when compared to Europe, the USA and Australia.
more
Worldwide, studies on asthma prevalence have shown major rises over the last 30 years. The impact on the burden of asthma is being increasingly recognised. In some countries in Latin America, the prevalence of asthma is among the highest in the world. Asthma admissions are very common in children, l
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eading to high costs for the health systems of those countries. Unfortunately, Latin America has limited resources to pay for appropriate treatment. The main goals of the international guidelines for asthma treatment are not being met. However, asthma programmes operating in some countries are showing promising results in reducing asthma admissions and consequently decreasing the burden of asthma. Local adaptation of international guidelines must be implemented in order to decrease costs and optimise outcomes.
more
A worldwide increase in the prevalence of asthma has been reported in recent years. With an increase in prevalence comes an increased burden of disease in terms of morbidity, mortality and compromised quality of life. The economic burden in terms of utilisation of healthcare resources and limitation
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of the earning capacity of the individuals and families is an added problem. Various indicators such as disability-adjusted life years and healthy life years have been used to define the economic burden. The data from Asian countries regarding these parameters is scarce, underlining the need for systematic studies in these countries, especially those that are resource poor. The purpose of this review is to highlight the varying prevalence of asthma in Asia and to assess the likely economic burden for the future.
more
Health economics is receiving more attention as decisionmakers — including purchasers, physicians and patients seek a more comprehensive understanding of the impact of adopting new health care strategies in developed and developing countries. Formal economic evaluation is playing an increasingly i
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mportant role in health care decision-making, including that related to asthma.
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