View clinical trials related to Lung Diseases.
Filter by:Using an extensive set of both volitional and non-volitional tests of respiratory muscle function and strength it is the aim of this study to - identify disease-specific patterns of respiratory muscle impairment in different NMD and COPD - establish which set of tests is predictive of sleep-disordered breathing or daytime hypercapnia in patients with NMD or COPD, respectively. - to investigate the decline of respiratory muscle function in patients with progressive NMD and COPD along with sleep studies and capnography
The principal objective of the study is to measure parameters of inflammation, oxidative stress, and vascular, respiratory, and peripheral muscle function parameters, and identify parameters indicative of evolving cardiovascular risk (CVR) in COPD patients, using multivariate analysis.
Studying the microbiome of the lung in patients treated with endobronchial lung volume reduction coils for emphysema
A single arm pilot study of lung volume reduction in severe emphysema using bronchoscopic autologous blood instillation in combination with intra-bronchial valves.
Hyper polarized xenon-129 MRI (HXe MRI) is a unique imaging test which can detect how air is flowing in and out of lungs and how oxygen can move from inhaled air into the blood. Chronic Obstructive Pulmonary Disease (COPD) is a disease in which patients develop narrowing of airways, thus, having difficulties breathing air in and out their lungs and also damaging the lung tissues which patients need to move oxygen from the air into blood. In this study, two drugs which are already approved by FDA (Anoro and Arnuity) will be administered to patients who are already known to have COPD. While patients are being treated with these two drugs (one drug at a time over a month), lung health by using usual testing methods (CT scan of the lung, pulmonary function test, and blood test) will be assessed in addition to HXe MRI. The goal of this study is to prove that the HXe MRI is an excellent imaging test to show the state of lung health among COPD patients and also to obtain new informations on how lung health changes with drugs that are already approved by US FDA. This work is anticipated to help develop HXe MRI as a new clinical test which can guide how to treat patients with COPD and if new therapies can improve lung health of patients with COPD.
Introduction: Chronic obstructive pulmonary disease (COPD) presents with a gradual reduction and little bitterness reversible airflow causing shortness of breath, chronic cough and sputum abnormal. Patients with COPD often suffer exacerbations of their symptoms, particularly dyspnea, causing hospital admissions. Recent studies have shown that acupuncture stimulation transcutánea (AcuTENS) Dingchuan point (EX-B1) could help reduce dyspnea in patients with COPD. Objective: The aim of this study was to evaluate the possible utility of adding to the usual treatment stimulation AcuTENS in COPD patients admitted with severe dyspnea. Methodology: Patients who agree to participate will be randomly divided into two groups. The intervention group will receive a daily treatment, during the period of hospitalization, 45 minutes stimulation at acupuncture point AcuTENS Dingchuan (EX-B1), while the control group performed the same procedure with a device TENS simulated. The extent of dyspnea in both groups as well as the number of days of hospitalization and the number of drugs consumed.
The purpose of this study is to analysis the volatile organic gases(VOCs) in exhaled breath of pulmonary lesion patients and healthy controls, in order to find the difference of composition and concentration among groups.
Smoking is one of the world's leading health hazards. Besides being a major risk factor in the etiology of COPD and lung cancer, cigarette smoke is also a causative agent lung diseases characterized by bronchiolar and interstitial inflammation. However, the associated lung pathology of smoking is not only a risk in the development of lung diseases, but also widely recognized as a major risk factor associated with perioperative respiratory and cardiovascular complications. Apart from the long term effects of cigarette smoke, acute effects of the inhalation of cigarettes smoke may influence the course of lung pathology. The inhalation of smoke causes inflammation in the lung by inducing chemotaxis and activation of neutrophils and macrophages and induces oxidative stress. As the acute inflammatory response to smoke inhalation seems to be the underlying mechanism for chronic diseases of smokers, exploring the field of the acute pulmonary changes after exposure to cigarette smoke is highly relevant. One reason for acute hypoxia and injury during smoking might be a severe mismatch of ventilation and perfusion of the lung. Using the multiple inert gas elimination technique (MIGET), a distribution of ventilation-perfusion ratios in the lung can be calculated by analyzing data on the retention and excretion of six infused inert gases. A saline solution containing the gases is infused intravenously. When passing through the lung the gases are either eliminated from the blood or retained depending on their partition coefficient and local V/Q ratio. The concentrations of the gases are measured in the mixed venous blood or the mixed expired gas and the arterial blood allowing for the calculation of retention and excretion and the derivation of V/Q distribution. MIGET is the experimental gold standard to determine the Ventilation-Perfusion ratio of the lung. The aim of this study is to show the acute effect of smoking on ventilation/perfusion ratio distribution in the lung in otherwise healthy smokers.
Main objective: To compare the level of physical activity (PAL) at 12 months in patients with moderate to very severe chronic obstructive pulmonary disease (COPD) between those who completed a health education program and those who did not. Study patients. Subjects older than 35 years; diagnosis of moderate to very severe COPD (FEV1 <80% predicted), established at least 3 months; current or former smoker with an accumulated consumption >10 packs x year; and hospital admission for COPD exacerbation. Design. Randomized, parallel and open-label clinical trial, controlled with conventional treatment. Intervention: During hospitalization, selected patients will receive conventional treatment. At discharge, they will be randomized (1:1) to control group [treatment and follow-up according to conventional clinical practice] or intervention group [in addition to conventional treatment and follow-up, the patients will be referred to a nursing consultation for perform two health education sessions, at 15 and 30 days after hospital discharge]. Measurements. At 15 days and 12 months after discharge, the following determinations will be made: anthropometric characteristics; clinical evaluation (smoking history, date of COPD diagnosis, comorbidities, current medication; health care utilization; moderate or severe COPD exacerbations); questionnaires (mMRC, Charlson, COPD-specific co-morbidity test (COTE), COPD Assessment Test (CAT) and LCADL), spirometry and six-minutes walking test; and evaluation of daily physical activity using an accelerometer.
The study consist of a retrospective analysis of the etiologies, investigations and outcomes of patients presenting between 2005 to 2010 with hemoptysis in a North-American Tertiary center.