View clinical trials related to Lung Diseases, Obstructive.
Filter by:The VitaBreath (Philips, Respironics) is a portable, handheld, battery powered, non-invasive ventilation device, that has been shown to reduce activity-related shortness of breath in patients with COPD. The VitaBreath device delivers 18 cmH2O inspiratory and 8 cmH2O expiratory pressures, but can only be used during recovery periods. A previous study (REC: 17/NE/0085) showed that use of the VitaBreath device during the recovery periods interspersing successive exercise bouts enhances exercise tolerance and reduces breathlessness compared to pursed lip breathing in patients with COPD. This was attributed to faster recovery from exercise-induced dynamic hyperinflation, assessed by volitional inspiratory capacity manoeuvres using a spirometer. However, inspiratory capacity manoeuvres are effort dependent, thus limiting the number of repetitions the patient can perform during exercise. In addition, investigation of the direct effect of the application of the VitaBreath device on dynamic hyperinflation was not possible due to the need to employ a spirometer for assessing inspiratory capacity. Optoelectronic plethysmography (OEP) allows continuous non-invasive assessment of end-inspiratory and end-expiratory volumes of the thoracoabdominal wall and its compartments, thereby facilitating assessment of dynamic hyperinflation on a breath-by-breath basis without the necessity to breathe via a spirometer. Unfortunately, OEP technology was not available at the time of our previous study. The investigators will use OEP to provide accurate breath-by-breath volume measurements during exercise and recovery to evaluate whether the VitaBreath device reduces total and compartmental thoracoabdominal wall volumes compared to the pursed lip breathing technique. Furthermore, the investigators will investigate the effect of use of the VitaBreath device on respiratory muscle activation and respiratory muscle oxygenation using OEP technology in conjunction with electromyography (EMG) and near inferred spectroscopy (NIRS), respectively to appreciate how the application of the VitaBreath device impacts on the operation and energy demands of the respiratory muscles as compared to control pursed lip breathing. The investigators hypothesised that the use of the VitaBreath device during the recovery periods interspersing successive exercise bouts will reduce the magnitude of dynamic hyperinflation in a greater extent compared to the pursed lip breathing technique.
A randomised, open label 2-way cross-over study to compare the effects of inhaled Beclometasone/Formoterol/Glycopyrronium (TRIMBOW) pMDI to Beclometasone/Formoterol (FOSTAIR) pMDI on hyperinflation and expiratory flow limitation in moderate to severe chronic obstructive pulmonary disease (COPD).
This is a randomised, controlled, two period cross-over, 4 weeks chronic dosing, study to evaluate the effects of Budesonide/Glycopyrronium/Formoterol Fumarate (BGF) and Glycopyrronium/Formoterol Fumarate (GFF) on airway dimensions.
This study aims to assess the effect of nasal high flow oxygen therapy on regional function measured by volumetric computed tomography, in patients with chronic obstructive pulmonary disease.
Researchers have found a link between chronic obstructive pulmonary disease (COPD) and heart disease; however, a link is all they have found. Cardiovascular health in COPD is controlled by different mechanisms including vascular health and systemic inflammation. The investigators have collected preliminary data to support that concentrations of Sirtuin 1 (Sirt1), a protein that plays a key role in cardioprotection, may be involved in cardiovascular health in patients with COPD. Resveratrol, an over the counter natural polyphenol found in a variety of food, is a direct activator of Sirt1 and has been used to improve cardiovascular health in different cohorts. The current project is an attempt to expand previous findings and explore the effects of the sub-chronic use of resveratrol in sustaining the improvements in cardiovascular health in COPD.
This Dietary Intervention is being done to evaluate the feasibility of a food voucher program and dietary counseling to increase consumption of healthy fatty acids (omega-3) in individuals with Chronic Obstructive Pulmonary Disease (COPD).
Better understanding of the specificities of the vaccine response in patients with COPD
In the present study, the role of chronic (10 weeks) intake of low dose (2g/day) of EPA+DHA in whole body protein metabolism, and functional performance and systemic inflammation will be examined, and whether adding either HMB at 3.0 g/d to the low dose of EPA+DHA (2.0 g/d) will enhance these effects even more.
Deficits in postural control are increasingly recognized among the important secondary impairments in patients with chronic obstructive pulmonary disease (COPD). There are conflicting results regarding the effect of inspiratory muscle training in improvement of inspiratory muscle strength, endurance, and dyspnea in stable COPD patients. The main inspiratory muscle, the diaphragm has also a stabilizing function of the trunk. The aim of this study to enhance postural control of COPD patients with improving the stability of the trunk by using inspiratory muscle training.
A non-interventional study to assess the clinical effectiveness of Salmeterol/fluticasone Easyhaler to achieve and maintain asthma or COPD control.