View clinical trials related to Asthma.
Filter by:Samples of sputum from asthmatic children, between 5-17 years, will be collected during two years of the study period to perform tests Particle Size Distribution (PSD) and Shape Analysis (SA) of the particulate matter in the sputum and a biochemical reaction to evaluate the activity of Heme Oxygenase-1 protein in sputum cell supernatants. Each child will perform Pulmonary Function Testing (PFT) and Induced Sputum (IS) as a routine part of diagnosis of asthma. Parents will be asked to complete a questionnaire including questions on their child's respiratory symptoms in the last 12 months as well as socioeconomic factors. Parents will be asked to give informed written consent for their child's participation in the study.
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.
In this study will be consecutive enrolled children with asthma (classified according to GINA guidelines) and rhinitis (classified by ARIA guidelines); the investigators will research clinical personal and parental history regarding allergic diseases, exposition to passive smoking and interpretate hematochemical parameters markers of atopy. Skin Prick Tests will be performed. In this study the investigators will evaluate lung function parameters (spirometry with bronchial reversibility test and exercise induced bronchoconstriction, oscillometry, respiratory plethysmography, etc.), airway inflammatory indices such as exhaled nitric oxide at different flows, exhaled and nasal temperature, nasal cytology. The aim of the study will be to evaluate possible correlation between these different parameters and clinical status of the patients.
The hypothesis of this study is that the onset of rapid bronchodilatory effect of inhaled Formoterol (12 microgram) is comparable to that of inhaled salbutamol (200 microgram) i.e., the difference in mean forced expiratory volume in 1 second (FEV1) between the 2 groups at 1, 5, 10, 30 and 60 minutes will be less than 10% in children between 5-15 years with mild acute exacerbation of asthma.
The purpose of this study is to determine the effect on knowledge and behavior of playing an educational asthma computer game during a pediatric Emergency Department (ED) asthma visit among children ages 7 - 15 years. The ED cares for a high-risk population of children who have difficulty accessing preventive care well. The addition of a computer game to usual asthma emergency care could be a simple, effective, enjoyable way to improve patients' asthma knowledge, beliefs, and management practices. This project has the potential to lead to larger studies evaluating the benefit of education with and without behavioral interventions such as motivational interviewing. This project plans to implement and evaluate the use of a goal setting activity and the educational asthma computer game, "Quest for the Code" (Starlight Starbright Children's FoundationTM), in the ED of Seattle Children's Hospital. In a randomized trial of Spanish and English speaking children ages 7 - 15 years receiving ED care for their asthma, the investigators will evaluate the effects of the game on children's asthma knowledge, attitudes, and behaviors. The investigators aim to compare the change in asthma knowledge and locus of control after 3 months, for children who play the computerized asthma game, versus those who receive standard care in the ED. The investigators will also compare changes in asthma severity and activity limitations over 3 months, for children who play the asthma game without goal-setting, children who playing the game with goal-setting, and children who receive standard care. Overall, the investigators hypothesize that educational asthma game play by pediatric patients with acute asthma will improve asthma knowledge, compared with standard care.
The objectives of this study are to measure Impulse Oscillometry (IOS) in patients with asthma extensively at baseline in patients with mild-to-moderate asthma, treated with as-needed short acting beta agonist only, to measure respiratory resistance and small airway dysfunction accurately and precisely at baseline, from which to measure onset of action of Advair MDI in comparison with that of Symbicort MDI. Initial screening will assess IOS resistance and small airway dysfunction and its response to short acting beta agonist (SABA). Patients will be selected from among those who manifest a 40% improvement in small airway function assessed by IOS low frequency reactance after SABA compared to baseline. After screening, patients will be randomized to receive either Advair or Symbicort; and will be assessed at randomization before and at several intervals after initial dosing, up to 4 hours. Patients will return again 4 weeks after randomization for extended IOS (and spirometry) testing as done at randomization.
The purpose of this study is: - To define The differences of bio-chemical phenotypes in chronic airway inflammatory diseases. - To identify novel biomarkers in chronic airway inflammatory diseases as a screening, diagnostic, or monitoring marker.
Previously the investigators have found that adolescent elite swimmers, who have been involved in competitive swimming for only a few years, have not developed respiratory symptoms, signs of airway inflammation or airway hyperresponsiveness exept for a slight increase in airway responsiveness to eucapnic voluntary hyperpnea. In the current study, the investigators will be doing a 3-year follow-up study on the swimmers studied previously.
The aim of this trial is to determine the efficacy of a combination of two botanicals oils, borage seed oil and echium seed oil, as a potential treatment for bronchial asthma.
We hypothesize that exercise-induced bronchospasm (EIB) at the NCAA Division I collegiate level is over diagnosed, while poorly controlled asthma resulting in exercise-related symptoms in this same population may be under diagnosed, being erroneously attributed to EIB. This project will test individuals self-identified as having exercise induced bronchospasm or asthma, as well as gender-matched controls from the same sport, with eucapnic voluntary hyperventilation to assess for the presence of EIB or asthma. By making the correct diagnosis, improved health outcomes may be achieved and athletic performance may be enhanced.