Active clinical trials for "Respiratory Tract (Lung and Bronchial) Diseases"

Aim of the study is to detect the prevalence of chronic rhinosinusitis, pathogen colonization of the lower and upper airways and, in a sub-cohort the sense of smelling in patients with cystic fibrosis.

The purpose of this study is to investigate whether influenza can be reliably transmitted from children to susceptible contacts in a health care setting. The goal is to develop a transmission that can then be used to assess interventions to prevent transmission Research objectives: To develop a model to investigate the frequency of influenza transmission from an infected child to a susceptible health care worker Research Hypotheses: Influenza viruses can be transmitted from infected children to exposed health care workers

The aim of this research study is to collect and store the specimens that are left over after patients undergo tests ordered by their physicians. These specimens will be used at a later time by researchers in the Pulmonary Division to develop a better understanding of pulmonary diseases or for the development of new treatments. Typical research studies that will be conducted on the stored tissue, fluid, or bacteria from the patient sample involve obtaining bacterial cultures, measurement of inflammatory markers, and examination of the characteristics of the tissue. Other similar tests may be done in the future; however, these tests have not all been determined at this time. It is important to note that no genetic testing will be performed on any samples that are obtained as part of this protocol.

Background: Primary ciliary dyskinesia (PCD) is a rare genetic disease characterised by recurrent respiratory infections and subfertility due to dysfunction of cilia (brushes) of the lining cells. Undiagnosed and untreated it can result in an irreversible crippling chronic lung disease. The diagnosis of PCD is a difficult one and involves the complex assessment of ciliary structure and function. Thus, PCD is under diagnosed and appropriate preventative and symptomatic treatment may be denied in many patients. In addition, the gene responsible for PCD is at present unknown, thus preventing pre-natal diagnosis and genetic counseling. Working hypothesis and aims: Recently, it has become apparent that the evaluation of nasally expired nitric oxide (NO) constitutes a simple and non-invasive diagnostic method, which discriminates between PCD patients, PCD carriers and healthy controls at high rate of specificity and sensitivity. Testing is simple and last approximately one minute. We have recently identified a unique isolated Druze population with high prevalence of PCD. The high frequency of disease places this closed community at a high risk of undiagnosed PCD. The aim of this project is to use nasal NO measurement as a screening tool to identify possible undiagnosed cases of PCD and PCD carriers in this high risk Druze population.

Swimmers show the highest prevalence of asthma among elite athletes, certainly due to chlorine exposure. The consequences of a chronic exposure to chlorine compounds by swimmers and the mechanisms of asthme in this population are still poorly documented. Specific diagnostic criteria have been proposed by the International Olympic Committee - Medical Council (IOC-MC) and World anti-doping agency (WADA) to determine the presence of asthma in athletes. Using the more specific bronchial provocation tests, our aims are to compare the prevalence of asthma in swimmers and control subjects to analyze the Influence of chlorine exposure on bronchial inflammatory processes in swimmers versus control subjects to study the time-course of changes in airway symptoms, responsiveness, inflammation and remodeling after cessation of training

There is a rare condition causing scarring of the lungs termed interstitial lung disease. This comprises a group of conditions which can be divided into separate diseases. The aim of this study is compare a group of patients (the cases) with 2 types of this disease (fibrotic non-specific interstitial pneumonia (NSIP) and idiopathic pulmonary fibrosis (IPF)) with patients without the disease. The study will look at the 2 groups and their exposures to factors such as medications, smoking, previous jobs, previous medical problems and specifically heart disease and any operations or procedures involving the heart. There have been previous studies showing a link between heart disease and scarring of the lungs. This study will look at whether this association is stronger in one or the other type of lung scarring diseases.

The purpose of this study is to develop the hypoxemia prediction model during fiberoptic bronchoscopy under MAC(monitored anesthesia care) anesthesia.

Purpose: to characterize the posture, tone and mobility of lips and tongue of mouth breathing children. Methods: 40 mouth breathing children, 26 (65%) male and 14 (35%) female, aging between 7 and 10 years old, were involved in this research realized in São Paulo, SP, Brazil . It was used the MBGR protocol to evaluate the posture, tone and mobility of lips and tongue of mouth breathing children.

Identify pediatric oncologic patients with ALI/ARDS at GRAACC/IOP's Pediatric Intensive Care Unit and evaluate the mechanical ventilation practice in these subjects for a 48mo period.

To survey the prevalence and the mortality of the Acute Lung Injury/ Acute Respiratory Distress Syndrome (ALI/ARDS) in 12 university hospital ICUs in Shanghai.