View clinical trials related to Lung Diseases, Obstructive.
Filter by:Aims of the study - to evaluate the rate of enteric gram negative bacteria colonization in tracheotomised COPD patients - to evaluate the effect of azithromycin long-term treatment on Pseudomonas aeruginosa colonization and colony counts, and on reduction of the number of exacerbations/hospitalisations, antibiotic courses and steroid use. - to evaluate the Quality of Life of patients treated and not treated with azithromycin, using a validate Italian version of St George questionnaire - to evaluate the rate of chronic colonization with atypical pathogens - to evaluate the safety and tolerability of a long-term treatment with azithromycin, including a survey on possible bacterial antibiotic resistance pattern variations
This is an investigator-sponsored research study to evaluate if treatment with HFA-134a beclomethasone (QVAR) has an effect on peripheral (or outer) airway inflammation and airway "remodeling" or scarring in subjects with COPD. Approximately 20 subjects with COPD will participate for approximately 7 weeks, with 10 receiving an active (BDP) inhaler with HFA-134a and 10 receiving a placebo.
The purpose of this research study is to determine whether analysis of genes in sputum is a useful noninvasive technique for measuring response to drugs in patients with COPD. We propose to use polymerase chain reaction to evaluate gene expression in induced sputum from adult current smokers with moderate COPD, adult former smokers with moderate COPD. This study is designed to determine whether changes in expression of previously-identified inflammatory markers in induced sputum can be detected in response to drug therapy in COPD and to evaluate potential differences in the expression of these markers in adult smokers with and without COPD. Pre- and post-treatment serum will be obtained to facilitate proteomic analysis of therapeutic response as well. Changes in sputum gene expression in response to treatment will be the primary outcome variable in this study. Secondary outcomes will include changes in lung function, as well as changes in induced sputum inflammation. These endpoints will be evaluated before and directly after 6 weeks of randomly-assigned treatment with either salmeterol xinafoate or fluticasone propionate/50mcg salmeterol xinafoate combination DPI bid. Endpoints will be re-evaluated following a 4 week wash-out period.
To humidify gases during non invasive ventilation, both to heated humidifier (HH) and heat and moisture exchanger (HME) are routinely used. Patients receiving non invasive ventilation for acute respiratory failure were randomized to HME or HH. The purpose of this study was to evaluate respiratory parameters and arterial blood gases (ABG) of patients during NIV with small dead space HME compared to HH.
The purpose of this study is to determine whether macrolide therapy is effective in treating patients hospitalized with asthma exacerbations or chronic obstructive pulmonary disease (COPD)exacerbations. We hypothesize that compared to placebo, maintenance therapy with macrolides, when added to usual care, a) improves respiratory symptoms, b) improves quality of life, c) reduces airway inflammation, d) reduces airflow obstruction, and e) decreases the rate of re-exacerbations.
Subjects undergo history, examination, lung function assessment after informed consent has been obtained. All subjects will undergo ventilation-perfusion scans. If there first scan is normal they will undergo a second and final scan four weeks later. If abnormal they will undergo two further scans with either nebulized bronchodilator or nebulized saline prior to their second and third scans. Each time they will have repeat lung function tests prior to scanning. We will examine the regional changes in ventilation and perfusion and there relationship to lung function.
The hypothesis to be tested of this study is that treatment with fluticasone propionate leads to an initial improvement in symptoms, quality of life and lungfunction and a reduction in airways hyperresponsiveness. The continued decline of lungfunction in COPD may not be influenced by longer lasting treatment. Addition of salmeterol will augment the initial benefits of fluticasone without changing the longterm decline in lungfunction.
A One Year Clinical Trial Assessing the Usefulness and Safety of Inhaled Insulin in Diabetics with Chronic Obstructive Pulmonary Disease.
The purpose of the VENT Cost-Effectiveness Sub-Study is to gather healthcare utilization and quality of life information on patients enrolled in the VENT study in order to analyze the relative cost-effectiveness of the endobronchial valve implant procedure.
Infants of < 1500 grams of birth weight who require a > 1 week mechanical ventilation (breathing machine) or CPAP [continuous positive airway pressure] (oxygen at a high flow through the nose) may have prolonged oxygen requirements. The nasal cannula (oxygen through the nose at a low flow) is the most commonly used method of oxygen administration, despite a lack of data regarding its safety and efficacy. Low birth weight infants are vulnerable to obstruction from secretions and blood, as well as the presence of the nasal cannula. Partially obstructed nostrils greatly increase the work of breathing. Additional potential adverse effects include an increased need for suctioning, increased risk for systemic infection, and inadvertent positive end expiratory pressure (CPAP). No study has been conducted to evaluate the efficacy of the nasal cannula compared to an oxygen hood (plastic "hood" that is placed over the infant's head to provide oxygen) on gas exchange or infection. Among infants who require supplemental oxygen (by either a nasal cannula or an oxygen hood) for clinical indications, objectives the investigators hope to accomplish in a randomized blinded (investigator) trial: Aim 1: To determine the short-term effect of different flows of oxygen by the nasal cannula on transcutaneous PCO2 (PTCO2). Aim 2: To determine, once optimal flow is established in Aim 1, the effect of prolonged (one week) use of a nasal cannula compared to an oxygen hood on PTCO2.