Active clinical trials for "Pulmonary Disease, Chronic Obstructive"

Although some important progresses were made in the field of the meridian research, no breakthroughs have been achieved. Besides,there are some problems in meridian researches. Particularly, previous research of meridian phenomenon involved lots of subjective elements and outcomes.Researches that use modern scientific techniques to investigate the biological characteristics of meridian phenomenon are urgently needed. Therefore, this study is designed to assess the microcirculatory characteristics of meridian phenomenon for the Heart and Lung meridians by using laser doppler. Thus, the biological characteristics of meridian phenomenon could be presented objectively in a scientific methodology

Extensive studies suggest composition of microbiome of respiratory samples or lung tissues in COPD patients is different from the composition of healthy smokers. Aim of this study is to analyze composition of microbiome of various samples (e.g. feces, sputum, and urine) and to describe difference of composition between COPD patients and healthy smokers.

In this study, cardiopulmonary exercise will be assessed to characterize the relevance of severity of COPD and coexisting cardiovascular comorbidities for exercise capacity.

This study aims to investigate the correlation between pulmonary microbiota dynamics (including bacteria, fungi and viruses) and COPD exacerbation for COPD patients admitted to ICU

The purpose of this study is to assess whether the detection of circulating tumor cells (CTC) could be used as a tool to earlier diagnose, more accurately predict treatment response / failure and predict overall survival in non-small cell lung cancer (NSCLC) patients

To access the clinical usefulness of F1+2 in the diagnosis of PE in patients with AECOPD who require hospitalization. Specifically, to determine whether F1+2 may have an additional value in the subgroup of patients with an abnormal D-dimer,to determine whether it may increase the proportion of patients in whom PE can be safely ruled out and to determine the sensitivity, specificity and NPV of F1+2 at various cut-off values.

Chronic obstructive lung disease (COPD) is characterized by airflow obstruction that is progressive over many years and is largely irreversible. Advanced COPD is associated with arterial oxygen desaturation leading to a series of complications and, ultimately, decreased survival. Long-term oxygen therapy can improve clinical outcomes in these patients, but the exact target of oxygen saturation that actually translates into improvements is not known. The basis for the work in this proposal is to focus a new approach to measure oxygen desaturation linked to daily activity. Accelerometers are used to measure daily activity and then synchronized with ambulatory oximetry to establish an activity/oxygen-saturation profile for individual patients. The three main objectives of this study are 1) determine the feasibility of AOM as a measurement of the temporal profile of oxygen saturation in patients with chronic lung disease; 2) determine if serial AOM-derived data is reliable and reproducible; and 3) determine thresholds of oxygen desaturation that are associated with different activity profiles

Chronic obstructive pulmonary disease is a common respiratory condition that is characterized by inflammation of the large and small peripheral airways , the alveoli and adjacent capillary networks. Severe airflow obstruction that imposes a significant load on the respiratory system is a major manifestation of Chronic obstructive pulmonary disease. The reduced expiratory airflow also causes air trapping at the end of expiration , producing alveolar pressure that are higher than atmospheric pressure before the next breath. This condition is intrinsic positive end-expiratory pressure .

Patients with chronic obstructive pulmonary disease (COPD) are 2-3 times more likely to occur together with chronic gastrointestinal tract (GIT) diseases, such as inflammatory bowel disease (IBD) or irritable bowel syndrome (IBS). Similarly, despite many patients have no history of acute or chronic respiratory disease, up to 50% of IBD patients and 33% of IBS patients have pulmonary involvement, such as inflammation or impaired lung function. Increasing evidence indicated chronic gut and lung disease share key conceptual features with the disorder and dysregulation of the microbial ecosystem. However, the underlying mechanisms are not well understood. Our study is aimed to elucidate the intimate relationship between the gastrointestinal tract and respiratory tract, and uncover the mechanisms by which the gut microbiota affects the immune responses in the lungs, and vice versa.

This study aims to evaluate prevalence of sarcopenia and cachexia in patients with chronic cardiopulmonary disease. The investigators will also investigate metabolic disorders like glucose metabolism, presence of metabolic syndrome, body composition and histological changes in skeletal muscle and body fat. Finally, patients will be followed for clinical endpoints.