View clinical trials related to Asthma.
Filter by:In this open prospective study, 6 well controlled asthmatic patients will undergo a high-resolution multi-slice computed tomography (CT) scan, lung function tests and a SPECT scan to obtain patient specific geometries of the central and peripheral small airways, patient specific boundary conditions and the in-vivo spatial distribution of inhaled aerosols.
The purpose of this study is to compare the test product Budesonide/formoterol Easyhaler with the marketed product Symbicort Turbohaler in terms of the drug absorbed into the bloodstream.
The investigators will implement an interactive school-based telemedicine education program for rural low-income, minority children with asthma, their caregivers, and school nurses in the Delta region of Arkansas. Specific aims: 1. The investigators will examine changes in asthma symptoms control and other health outcomes such as activity levels and family/child emotional health in the intervention group compared to a usual care group. 2. The investigators will examine changes in asthma knowledge, self-efficacy, and quality of life in the intervention participants and their caregivers compared to a usual care group.
Spirometry is a biomedical test to measure lung function in subject who (may) have a chronic respiratory condition. Performing the test requires a certain level of training and experience from the health care professional who conducts the test, and sufficient cooperation of the patient. Although the test is widely used in primary care in many countries, the quality of the test performance seems limited and needs improvement in order to avoid false-positive and false-negative test interpretations. In this study, the researchers investigated whether a combination of e-learning and bimonthly written performance feedback to family practice nurses and assistance regarding their spirometry tests improves the rate of adequate tests.
Exhaled breath condensate (EBC) has emerged as a novel noninvasive technique for assessment of airway inflammation, and it provides information on airway lining fluid composition. Traditionally, such assessment relies on invasive diagnostic tools such as bronchial biopsy and bronchoalveolar lavage (BAL) to obtain specimens from the airway but it is very uncomfortable procedure especially for young patients. The aim of this study is to evaluate the effect of allergic disease, disease monitoring and exposure to tobacco smoke on airway inflammation measured by markers in exhaled breath condensate (EBC) in children with asthma allergic to house dust mite. Also, we aim to assess correlations between cytokine concentrations in EBC and clinical characteristic of the patients with exercise-induced bronchoconstriction as another phenotype of asthma.
Inhaled steroid has been the cornerstone in the treatment of asthma, which carries a huge patient population worldwide including Hong Kong. In general, the safety of long-term use of inhaled steroid has been well documented. Yet, long-term users of such treatment carry increased risk of complications like cataract. In particular, the exact association of inhaled steroid use and development of diabetes mellitus is not known, despite a clear causal relationship between oral steroid use and diabetes. Therefore this epidemiology study (based on questionnaire and blood tests) aims to investigate the effect of inhaled corticosteroid on the risk of diabetes, impaired glucose tolerance and insulin resistance in adults with asthma. The impact of this study is expected to affect the current practice of long-term use of inhaled corticosteroid especially among patients with asthma.
Cardiovascular disease is a major cause of morbidity and mortality worldwide. It is the second leading cause of death in Hong Kong. The disease burden is huge and effective control measures should target at prevention level. As the disease pathophysiology is linked to chronic low grade systemic inflammation, any therapeutics having the potential to reduce systemic inflammation should be vigorously explored. The use of long-term inhaled corticosteroid (ICS) treatment in recent 2 decades has become the cornerstone in the treatment of most patients with persistent asthma with reduction in its mortality and hospital utilization. The long term safety of ICS in adults is generally very high. Recent epidemiological studies utilizing large numbers of patients with asthma have shown that long term use of ICS is independently associated with a protective effect towards the development of myocardial infarction and cardiovascular mortality, with protective risk at 0.35 (95%CI 0.13-0.93). This effect is possibly mediated through the reduction of low grade systemic inflammation as reflected by plasma hs-CRP, from systemic absorption of the ICS. The purpose of this study is to explore the potential protective effect of ICS on cardiovascular morbidities and its underlying link with systemic inflammation in Chinese adults with asthma compared with matched controls from the general population.
The primary aim of this project is to conduct a randomized practical clinical trial within a large health maintenance organization to test a telephone intervention designed to improve adherence to daily asthma medications and thereby improve asthma outcomes. The investigators hypothesize that adherence with inhaled corticosteroid medications in the TEAM intervention group will be greater than in the usual care group.
Asthma is a chronic airway inflammation which involves the interplay of different types of inflammatory cells and cytokines in the airway. The presence of systemic inflammation and oxidative stress in asthma suggests that it has a propensity to develop cardiovascular morbidity. Recent small scale studies have demonstrated that asthma severity may be associated with both airway and systemic inflammation. The investigators' study aims at linking asthma severity to airway and systemic inflammation, and subsequently to cardiovascular morbidity if a significant association of the aforementioned is present. The role of airway inflammation in contribution to systemic inflammation , and potential interaction between these two conditions will also be studied.
The proposed study will utilize a survey format to examine the attitudes, perceptions, and practices of primary care providers in the Delta region of Arkansas.