View clinical trials related to Chronic Obstructive Pulmonary Disease.
Filter by:[Background] Hyperinflation caused by increased airflow limitation and emphysema change commonly accompanies dyspnea, which leads to inactivity, reducing exercise capacity, and deconditioning. Hyperinflation in COPD is also associated with decreased left and right end-diastolic volume and stroke volume, and cardiac output. Previous studies investigated effects of ICS/LABA or LABA/LAMA versus placebo on cardiac function in patients with COPD and lung hyperinflation. However, there are not evidences for effects of LABA/LAMA on cardio-pulmonary exercise capacity. Cardiopulmonary exercise testing (CPET) is an exercise stress test with concomitant expired gas analysis, which provides objective parameters of functional capacity. Since CPET can assess integrated exercise responses of cardiopulmonary, vascular, and skeletomuscular systems, it can reveal abnormalities that are not apparent in a resting state. Moreover, change in oxygen consumption during exercise and anaerobic threshold can be evaluated. The investigators would like to investigate change in cardio-pulmonary exercise capacity via CPET before and after tiotropium/olodaterol inhalation in COPD patients with hyperinflation, which is the first clinical study. Association between change in cardio-pulmonary exercise capacity with function of heart and lung would be further evaluated with cardiac magnetic resonance (CMR) and lung function. The in investigators expect to enhance cardio-pulmonary exercise capacity though the improvement in cardiac and pulmonary function with tiotropium/olodaterol inhalation. This result would provide evidence to encourage to treat with dual bronchodilators in COPD patients with hyperinflation. [Study objectives] To investigate and compare the bronchodilator effect of tiotropium/olodaterol on cardio-pulmonary exercise capacity in hyperinflated COPD patients [Study design] Prospective, single-center, one-arm clinical study After using the tiotropium/olodaterol inhaler for 4weeks, the investigators will compare pre- and post- cardio-pulmonary exercise capacity, cardiac function, lung function, symptoms and quality of life [Statistic methods] For continuous variables, data will be presented as median, minimum, maximum with standard deviation (95% confidence intervals). For categorical variables, data will be presented as percentage (95% confidence intervals). Paired t-test for continuous variables and chi-squared test for categorical variables will be performed to compare the difference in results before and after inhalation of the tiotropium/olodaterol inhaler. This is a pilot study; therefore, sample size cannot be calculated by power analysis, because of the absence of any data in the literature that could be reviewed. A sample size is expected to be 40 patients. When the drop-out rate 10% is considered, final sample size is expected to be 44.
In the literature, it has been observed that there is an increase in respiratory muscle activity in individuals with COPD due to the increase in respiratory workload and in response to the loads given by respiratory muscle training devices. However, no study has been found in the literature comparing the activation of respiratory muscles during constant threshold load endurance test and increasing threshold load endurance test performed with respiratory muscle training devices, which are important for respiratory muscle function evaluation. With this planned study, it is aimed to contribute to the literature by examining the changes in muscle activation during the constant threshold load and increasing threshold load endurance tests where different workloads are given and by comparing these changes.
It has been observed in the literature that respiratory muscle electromyography activations at certain threshold loads have been examined in individuals with chronic obstructive pulmonary disease. However, no study has been found in the literature examining the acute effects of respiratory muscle training given at low, medium and high threshold loads on respiratory muscle activations. With this planned study, it is aimed to examine the electromyography activations of respiratory muscles before and after respiratory muscle training and to contribute to the literature by comparing the acute effects of respiratory muscle training applied at low, medium and high intensity on respiratory muscle electromyography activations.
The study project will aim at the evaluation of the occurrence of exercise desaturation phenomenon during two different modalities of exercise (walking and stepping condition). This study will allow determining the sensibility of the 3-minute step test to detect exercise desaturation, in comparison with the gold standard (6-minute walking test). The 3-minute step test could therefore appear as a complementary tool for the evaluation of oxygen desaturation in chronic respiratory disease.
This study is aiming at explore the characteristics of intestinal microbiome during the early progression of COPD, the correlation between the changes of intestinal microbiome and the severity and risk of acute exacerbation of COPD, the correlation between microbial metabolites SCFA and immune function of COPD. Then reveal the influence of intestinal microecology on the development of COPD and the possible mechanism of intestinal microecology in the pathogenesis of COPD.
This is a retrospective observational study drawing on data from the Brigham and Women's Home Hospital database. Sociodemographic and clinic data from a training cohort were used to train a machine learning algorithm to predict the likelihood of 30-day readmission throughout a patient's admission. This algorithm was then validated in a validation cohort.
This trial aims to evaluate the clinical control rate of sputum by Zhuli Capsule in the treatment of the Phlegm-heat Syndrome （Tan-re Zheng）in the patients with acute exacerbation of chronic obstructive pulmonary disease or chronic bronchitis.
Phase I/II Randomized Clinical Trial to evaluate the safety, pharmacokinetic and efficacy of Anti-SARS-CoV-2 hyperimmune serum. The study will include patients at early stage of COVID-19 with increased risk for severe disease due to underlying medical conditions to determine the utility of an equine heterologous serum anti-SARS-CoV-2 to avoid progression to a severe COVID-19
Patients diagnosed with COPD as a result of hyperinflation adapt to the increased workload through shortening and overactivation of other muscles because of their dual function as muscles of the upper limb and neck motion which makes them limited in function and decreases the range of motion in these joints. Another resultant effect of these changes is the shortness of breath taking place following the inability of patients to perform daily activities. Current research is focusing on the use of Muscle Energy Techniques (METs) for such circumstances. Therefore, this study aims to evaluate whether METs result in an improvement in rib cage mobility which could potentially lead to improvements in pulmonary function and activities of daily of living (ADLs) in a group of patients diagnosed with COPD. If positive results are obtained, such an intervention might provide a possible addition to the evidence-based interventions already available for COPD patients. The result of this intervention may provide physiotherapists with further techniques for use in such patients; ones which will be of benefit to the patients and their quality of life and also to the health services.
Smoking is the most important factor in the etiology of COPD. Some of the patients with COPD continue to smoke despite knowing this situation or they cannot quit even if they want. The aim of this study is; To examine patients with COPD who continue to smoke in terms of perception of dyspnea, exercise capacity, psychological symptoms and quality of life.