View clinical trials related to Bronchial Hyperreactivity.
Filter by:This observational study aims to compare responses to different, commonly used inhaled bronchodilators in children born preterm with bronchial obstruction at spirometry. All children were diagnosed with Chronic Lung Disease of Immaturity (CLDI). The main questions are: - Is any inhaled bronchodilator or their combination generally superior in children with CLDI when assessing the reversibility of bronchial obstruction? - Is there an individual difference in the effect of betamimetic, anticholinergic or their combination between children with CLDI? Participants will: - Come to our clinic in a stable state without acute infection and they will be randomly assigned to the first inhaled bronchodilator. - They will then perform a spirometry test before and after the inhalation of the drug. - This visit will repeat 3 times, each with a different bronchodilator (beta2agonist, anticholinergic and their combination).
The goal of this clinical trial is to find out at which lower limit for saturation (amount of oxygen in the blood) we can best give extra oxygen to children that have been admitted for shortness of breath. We hope to accomplish a shorter period of illness for these children and that they can be discharged home earlier. Participants will receive supplemental oxygen if their blood oxygen levels are below 88% or below 92%. After admission, (parents of) participating children will fill out questionnaires. We will compare the two groups on their hospitalization duration and recovery. In other words, is it better to maintain a lower limit of 88% saturation or a lower limit of 92% in children admitted for shortness of breath?
Approximately 8% of all births occur between 30-36 weeks of gestation ('moderate-late' prematurity). Respiratory tract infections (RTI) and wheezing illnesses disproportionally affect preterm infants resulting in a 1.5-2 fold higher hospitalisation rate during the first years of life compared to term born children. Besides prematurity, several other postnatal modifiable influencing factors are associated with increased risk of respiratory morbidity and impaired pulmonary development. These factors include RTI, rapid weight gain, air pollution, tobacco smoke exposition, vitamin D deficiency, maternal stress and antibiotic usage. The investigators hypothesize that a follow-up program aiming at prevention of modifiable influencing factors can reduce respiratory morbidity in moderate and late prematurity. Objectives: To reduce respiratory disease burden in moderate-late preterm infants in the first 18 months of life
Interventional open-labeled study in parallel groups is aimed to evaluate changes of beta receptors in healthy volunteers under the influence of inhaled metacholine, long-acting anticholinergics and beta-agonists using modified radioligand method.
Exercise training has been proposed as adjunctive therapy in asthma to improve many clinical outcomes; however its effects on bronchial hyperresponsiveness (BHR) and inflammation, characteristic features in asthma, remains poorly understood. We aim to investigate the effects of aerobic training on BHR (primary aim) and systemic inflammation (secondary aim). In addition, clinical control and health related quality of life (HRQoL) will be also assessed.