Active clinical trials for "Bronchitis"

The purpose of this research is to understand the properties of mucus in persons with COPD, specifically Chronic Bronchitis. We hypothesize that those with Chronic Bronchitis have dehydrated mucus, and thus have a harder time coughing it out of their lungs. This leads to a greater vulnerability for lung infection, inflammation and airflow obstruction. Ultimately, our goal is to understand how mucus dehydration contributes to the progression of COPD/Chronic Bronchitis so that better therapies and interventions can be developed for future generations.

In this study data of patients with moderate or severe acute exacerbations of chronic bronchitis (AECB) were collected. There were two different cohorts which were compared (Moxifloxacin and other antibiotics) concerning effectiveness and tolerance. It was a prospective study which was accomplished in 100 ambulatory practice offices.

The investigators are studying what causes Plastic Bronchitis and Protein Losing Enteropathy. The investigators think that these problems are from too much of two small proteins called Vasoactive Intestinal Peptide (VIP) and Substance P. VIP and Substance P are important proteins in the body that normally tell the body to make small amounts of fluid and they help the intestines work. Normally, VIP and Substance P are made in the intestines and then destroyed in the lungs after they do their normal work. The investigators think that kids who have Plastic Bronchitis and/or Protein Losing Enteropathy who also had the Fontan surgery might have too much VIP and Substance P in their bodies. The investigators think this causes too much fluid to go in the lungs and too much protein in the intestines.

The purpose of this protocol is to obtain biologic materials from the blood and lungs from patients with lung disease in order to develop an understanding of the etiology and pathogenesis of these disorders. General admission criteria for this project will require at least one of the following: (1) symptoms consistent with pulmonary disease; (2) chest X-ray consistent with lung disease; (3) pulmonary function tests consistent with lung disease; (4) lung biopsy consistent with lung disease; (5) family history of lung disease; and (6) patients with diseases of organs with known association with lung disease.

The aim of this study is to investigate the mechanisms whereby leukocytes are recruited to the lung in chronic obstructive pulmonary disease (COPD) and cause tissue destruction. The hypothesis is that in COPD more leukocytes enter the lung and it is these cells that are responsible for the degradation of lung tissue. We, the researchers at Imperial College London, will isolate leukocytes from the blood of patients with COPD, healthy smokers and normal subjects and measure the movement of the leukocytes to chemoattractants. We will examine further, which cell surface receptors are responsible for this trafficking of cells. Furthermore, the differentiation of these cells in vitro will be compared with cells from healthy smokers and normal subjects. Specifically, the expression of enzymes that are responsible for tissue destruction and the cell surface receptors on these cells will be investigated. The objective is to identify the mechanisms whereby leukocytes from COPD patients behave differently to cells from healthy smokers and normal subjects with a view to identify novel targets for drug therapy.

This is an observational study examining outcomes and treatment patterns in a community-based cohort of subjects with Chronic obstructive pulmonary disease (COPD) who are based in the Kannapolis, NC area.

The purpose of the international plastic bronchitis registry is to understand the natural course and long term health outcomes of subjects diagnosed with plastic bronchitis due to different types of casts. This provides essential data for identifying best practices and treatments. The secondary aim is to understand the structure of casts and mechanism of their formation.

Antibiotic resistant infections are expected to cause 10 million deaths worldwide by 2050, and exceed cancer deaths. Reducing antibiotic use can reduce resistance levels. Hospitals have now developed Antimicrobial Stewardship Programs that promote better use of antibiotics. However, 80% of antibiotics are prescribed in the community where stewardship programs do not exist. Antibiotics are often prescribed for coughs and colds, where it can be difficult to tell if these are cases of pneumonia or strep throat. Doctors may prescribe antibiotics 'just in case' and patients may request antibiotics hoping to feel better faster. To help family doctors and patients, a team of infectious disease specialists, researchers and community family physicians have collaboratively developed an Antimicrobial Stewardship Program (ASP) for use in the community. Testing in 3 family medicine clinics is showing reduced antibiotic use. What is needed is a strategy to 'scale' up this program province wide to reduce antibiotic use enough to reduce resistance levels, but how to do this is not known. Working with a community clinic network, this project will test two implementation strategies to inform how best to implement a Community-Based ASP.

The purpose of this study is to create a patient registry to collect and analyze information on subjects treated with the CryoSpray Ablation™ System post-510K approval.

INTRODUCTION Lung function assessment of preschool children is hindered by their limited co-operation in conventional tests such as peak expiratory flow (PEF) or spirometry and the methods available for younger children are, again, laborious and time consuming. However, impedance pneumography (IP) records indices of airway obstruction during normal sleep at home and has been shown accurate in wheezy preschool children (Seppä et al. J Appl Physiol 2013). AIM OF THE STUDY The general purpose of this study is to assess the clinical value of the information provided by overnight home recording of tidal breathing by means of IP technique in young children with asthmatic symptoms and inhaled corticosteroid (ICS) medication. The main hypothesis is that IP measurement can distinguish between groups whose asthmatic symptoms recur or do not recur after ending the ICS drug treatment period. METHODS The study recruits 1-5 year old children (n=75) who have presented at the emergency room due to obstructive bronchitis and for whom an ICS drug treatment period has been prescribed based on the national guidelines. The subjects will perform three overnight IP measurements at home at two weeks intervals close to and after ending of the treatment period. SIGNIFICANCE OF THE STUDY Being an affordable, simple and convenient ambulatory measurement method, IP may bring needed objectivity to asthma diagnostics and asthma drug response assessment in young children.